Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A set of fixes for this series, most notably the fix for the blk-mq
software queue regression in from this merge window.
Apart from that, a fix for an unlikely hang if a queue is flooded with
FUA requests from Ming, and a few small fixes for nbd and badblocks.
Lastly, a rename update for the proc softirq output, since the block
polling code was made generic"
* 'for-linus' of git://git.kernel.dk/linux-block:
blk-mq: update hardware and software queues for sleeping alloc
block: flush: fix IO hang in case of flood fua req
nbd: fix incorrect unlock of nbd->sock_lock in sock_shutdown
badblocks: badblocks_set/clear update unacked_exist
softirq: Display IRQ_POLL for irq-poll statistics
diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/testing/sysfs-class-cxl
index 4ba0a2a..640f65e 100644
--- a/Documentation/ABI/testing/sysfs-class-cxl
+++ b/Documentation/ABI/testing/sysfs-class-cxl
@@ -220,8 +220,11 @@
Date: October 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: write only
- Writing 1 will issue a PERST to card which may cause the card
- to reload the FPGA depending on load_image_on_perst.
+ Writing 1 will issue a PERST to card provided there are no
+ contexts active on any one of the card AFUs. This may cause
+ the card to reload the FPGA depending on load_image_on_perst.
+ Writing -1 will do a force PERST irrespective of any active
+ contexts on the card AFUs.
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<card>/perst_reloads_same_image (not in a guest)
diff --git a/Documentation/devicetree/bindings/clock/uniphier-clock.txt b/Documentation/devicetree/bindings/clock/uniphier-clock.txt
index c7179d3..8121630 100644
--- a/Documentation/devicetree/bindings/clock/uniphier-clock.txt
+++ b/Documentation/devicetree/bindings/clock/uniphier-clock.txt
@@ -24,7 +24,7 @@
reg = <0x61840000 0x4000>;
clock {
- compatible = "socionext,uniphier-ld20-clock";
+ compatible = "socionext,uniphier-ld11-clock";
#clock-cells = <1>;
};
@@ -43,8 +43,8 @@
21: USB3 ch1 PHY1
-Media I/O (MIO) clock
----------------------
+Media I/O (MIO) clock, SD clock
+-------------------------------
Required properties:
- compatible: should be one of the following:
@@ -52,10 +52,10 @@
"socionext,uniphier-ld4-mio-clock" - for LD4 SoC.
"socionext,uniphier-pro4-mio-clock" - for Pro4 SoC.
"socionext,uniphier-sld8-mio-clock" - for sLD8 SoC.
- "socionext,uniphier-pro5-mio-clock" - for Pro5 SoC.
- "socionext,uniphier-pxs2-mio-clock" - for PXs2/LD6b SoC.
+ "socionext,uniphier-pro5-sd-clock" - for Pro5 SoC.
+ "socionext,uniphier-pxs2-sd-clock" - for PXs2/LD6b SoC.
"socionext,uniphier-ld11-mio-clock" - for LD11 SoC.
- "socionext,uniphier-ld20-mio-clock" - for LD20 SoC.
+ "socionext,uniphier-ld20-sd-clock" - for LD20 SoC.
- #clock-cells: should be 1.
Example:
@@ -66,7 +66,7 @@
reg = <0x59810000 0x800>;
clock {
- compatible = "socionext,uniphier-ld20-mio-clock";
+ compatible = "socionext,uniphier-ld11-mio-clock";
#clock-cells = <1>;
};
@@ -112,7 +112,7 @@
reg = <0x59820000 0x200>;
clock {
- compatible = "socionext,uniphier-ld20-peri-clock";
+ compatible = "socionext,uniphier-ld11-peri-clock";
#clock-cells = <1>;
};
diff --git a/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-bt-bmc.txt b/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-bt-bmc.txt
new file mode 100644
index 0000000..fbbacd9
--- /dev/null
+++ b/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-bt-bmc.txt
@@ -0,0 +1,23 @@
+* Aspeed BT (Block Transfer) IPMI interface
+
+The Aspeed SOCs (AST2400 and AST2500) are commonly used as BMCs
+(BaseBoard Management Controllers) and the BT interface can be used to
+perform in-band IPMI communication with their host.
+
+Required properties:
+
+- compatible : should be "aspeed,ast2400-bt-bmc"
+- reg: physical address and size of the registers
+
+Optional properties:
+
+- interrupts: interrupt generated by the BT interface. without an
+ interrupt, the driver will operate in poll mode.
+
+Example:
+
+ ibt@1e789140 {
+ compatible = "aspeed,ast2400-bt-bmc";
+ reg = <0x1e789140 0x18>;
+ interrupts = <8>;
+ };
diff --git a/Documentation/devicetree/bindings/ipmi.txt b/Documentation/devicetree/bindings/ipmi/ipmi-smic.txt
similarity index 100%
rename from Documentation/devicetree/bindings/ipmi.txt
rename to Documentation/devicetree/bindings/ipmi/ipmi-smic.txt
diff --git a/Documentation/devicetree/bindings/timer/jcore,pit.txt b/Documentation/devicetree/bindings/timer/jcore,pit.txt
new file mode 100644
index 0000000..af5dd35
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/jcore,pit.txt
@@ -0,0 +1,24 @@
+J-Core Programmable Interval Timer and Clocksource
+
+Required properties:
+
+- compatible: Must be "jcore,pit".
+
+- reg: Memory region(s) for timer/clocksource registers. For SMP,
+ there should be one region per cpu, indexed by the sequential,
+ zero-based hardware cpu number.
+
+- interrupts: An interrupt to assign for the timer. The actual pit
+ core is integrated with the aic and allows the timer interrupt
+ assignment to be programmed by software, but this property is
+ required in order to reserve an interrupt number that doesn't
+ conflict with other devices.
+
+
+Example:
+
+timer@200 {
+ compatible = "jcore,pit";
+ reg = < 0x200 0x30 0x500 0x30 >;
+ interrupts = < 0x48 >;
+};
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 219ffd4..74329fd 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -395,32 +395,6 @@
or if empty, the mapping is anonymous.
-The /proc/PID/task/TID/maps is a view of the virtual memory from the viewpoint
-of the individual tasks of a process. In this file you will see a mapping marked
-as [stack] if that task sees it as a stack. Hence, for the example above, the
-task-level map, i.e. /proc/PID/task/TID/maps for thread 1001 will look like this:
-
-08048000-08049000 r-xp 00000000 03:00 8312 /opt/test
-08049000-0804a000 rw-p 00001000 03:00 8312 /opt/test
-0804a000-0806b000 rw-p 00000000 00:00 0 [heap]
-a7cb1000-a7cb2000 ---p 00000000 00:00 0
-a7cb2000-a7eb2000 rw-p 00000000 00:00 0
-a7eb2000-a7eb3000 ---p 00000000 00:00 0
-a7eb3000-a7ed5000 rw-p 00000000 00:00 0 [stack]
-a7ed5000-a8008000 r-xp 00000000 03:00 4222 /lib/libc.so.6
-a8008000-a800a000 r--p 00133000 03:00 4222 /lib/libc.so.6
-a800a000-a800b000 rw-p 00135000 03:00 4222 /lib/libc.so.6
-a800b000-a800e000 rw-p 00000000 00:00 0
-a800e000-a8022000 r-xp 00000000 03:00 14462 /lib/libpthread.so.0
-a8022000-a8023000 r--p 00013000 03:00 14462 /lib/libpthread.so.0
-a8023000-a8024000 rw-p 00014000 03:00 14462 /lib/libpthread.so.0
-a8024000-a8027000 rw-p 00000000 00:00 0
-a8027000-a8043000 r-xp 00000000 03:00 8317 /lib/ld-linux.so.2
-a8043000-a8044000 r--p 0001b000 03:00 8317 /lib/ld-linux.so.2
-a8044000-a8045000 rw-p 0001c000 03:00 8317 /lib/ld-linux.so.2
-aff35000-aff4a000 rw-p 00000000 00:00 0
-ffffe000-fffff000 r-xp 00000000 00:00 0 [vdso]
-
The /proc/PID/smaps is an extension based on maps, showing the memory
consumption for each of the process's mappings. For each of mappings there
is a series of lines such as the following:
diff --git a/Documentation/gpio/board.txt b/Documentation/gpio/board.txt
index 40884c4..a0f6189 100644
--- a/Documentation/gpio/board.txt
+++ b/Documentation/gpio/board.txt
@@ -6,7 +6,7 @@
description of the deprecated integer-based GPIO interface please refer to
gpio-legacy.txt (actually, there is no real mapping possible with the old
interface; you just fetch an integer from somewhere and request the
-corresponding GPIO.
+corresponding GPIO).
All platforms can enable the GPIO library, but if the platform strictly
requires GPIO functionality to be present, it needs to select GPIOLIB from its
@@ -162,6 +162,9 @@
Since the "led" GPIOs are mapped as active-high, this example will switch their
signals to 1, i.e. enabling the LEDs. And for the "power" GPIO, which is mapped
-as active-low, its actual signal will be 0 after this code. Contrary to the legacy
-integer GPIO interface, the active-low property is handled during mapping and is
-thus transparent to GPIO consumers.
+as active-low, its actual signal will be 0 after this code. Contrary to the
+legacy integer GPIO interface, the active-low property is handled during
+mapping and is thus transparent to GPIO consumers.
+
+A set of functions such as gpiod_set_value() is available to work with
+the new descriptor-oriented interface.
diff --git a/MAINTAINERS b/MAINTAINERS
index b6c28e1..c447953 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4620,8 +4620,9 @@
EXTENSIBLE FIRMWARE INTERFACE (EFI)
M: Matt Fleming <matt@codeblueprint.co.uk>
+M: Ard Biesheuvel <ard.biesheuvel@linaro.org>
L: linux-efi@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git
S: Maintained
F: Documentation/efi-stub.txt
F: arch/ia64/kernel/efi.c
diff --git a/Makefile b/Makefile
index 512e47a..93beca4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 9
SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc2
NAME = Psychotic Stoned Sheep
# *DOCUMENTATION*
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 03e9273..08bb84f 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -1312,6 +1312,13 @@
goto out_err;
}
+ err = create_hyp_mappings(kvm_ksym_ref(__bss_start),
+ kvm_ksym_ref(__bss_stop), PAGE_HYP_RO);
+ if (err) {
+ kvm_err("Cannot map bss section\n");
+ goto out_err;
+ }
+
/*
* Map the Hyp stack pages
*/
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index fd9d5fd..f5ea0ba 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -178,11 +178,6 @@
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_ISV);
}
-static inline bool kvm_vcpu_dabt_iswrite(const struct kvm_vcpu *vcpu)
-{
- return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_WNR);
-}
-
static inline bool kvm_vcpu_dabt_issext(const struct kvm_vcpu *vcpu)
{
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_SSE);
@@ -203,6 +198,12 @@
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_S1PTW);
}
+static inline bool kvm_vcpu_dabt_iswrite(const struct kvm_vcpu *vcpu)
+{
+ return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_WNR) ||
+ kvm_vcpu_dabt_iss1tw(vcpu); /* AF/DBM update */
+}
+
static inline bool kvm_vcpu_dabt_is_cm(const struct kvm_vcpu *vcpu)
{
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_CM);
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index ce96149..622037d 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -14,6 +14,7 @@
#include <linux/err.h>
#include <linux/kdebug.h>
#include <linux/module.h>
+#include <linux/uaccess.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/bootmem.h>
diff --git a/arch/powerpc/boot/main.c b/arch/powerpc/boot/main.c
index f7a184b..57d42d1 100644
--- a/arch/powerpc/boot/main.c
+++ b/arch/powerpc/boot/main.c
@@ -32,9 +32,16 @@
void *addr = 0;
struct elf_info ei;
long len;
+ int uncompressed_image = 0;
- partial_decompress(vmlinuz_addr, vmlinuz_size,
+ len = partial_decompress(vmlinuz_addr, vmlinuz_size,
elfheader, sizeof(elfheader), 0);
+ /* assume uncompressed data if -1 is returned */
+ if (len == -1) {
+ uncompressed_image = 1;
+ memcpy(elfheader, vmlinuz_addr, sizeof(elfheader));
+ printf("No valid compressed data found, assume uncompressed data\n\r");
+ }
if (!parse_elf64(elfheader, &ei) && !parse_elf32(elfheader, &ei))
fatal("Error: not a valid PPC32 or PPC64 ELF file!\n\r");
@@ -67,6 +74,13 @@
"device tree\n\r");
}
+ if (uncompressed_image) {
+ memcpy(addr, vmlinuz_addr + ei.elfoffset, ei.loadsize);
+ printf("0x%lx bytes of uncompressed data copied\n\r",
+ ei.loadsize);
+ goto out;
+ }
+
/* Finally, decompress the kernel */
printf("Decompressing (0x%p <- 0x%p:0x%p)...\n\r", addr,
vmlinuz_addr, vmlinuz_addr+vmlinuz_size);
@@ -82,7 +96,7 @@
len, ei.loadsize);
printf("Done! Decompressed 0x%lx bytes\n\r", len);
-
+out:
flush_cache(addr, ei.loadsize);
return (struct addr_range){addr, ei.memsize};
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index cf12c58..e8cdfec 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -16,6 +16,10 @@
#define __NR__exit __NR_exit
+#define __IGNORE_pkey_mprotect
+#define __IGNORE_pkey_alloc
+#define __IGNORE_pkey_free
+
#ifndef __ASSEMBLY__
#include <linux/types.h>
diff --git a/arch/powerpc/mm/copro_fault.c b/arch/powerpc/mm/copro_fault.c
index bb03542..362954f 100644
--- a/arch/powerpc/mm/copro_fault.c
+++ b/arch/powerpc/mm/copro_fault.c
@@ -106,6 +106,8 @@
switch (REGION_ID(ea)) {
case USER_REGION_ID:
pr_devel("%s: 0x%llx -- USER_REGION_ID\n", __func__, ea);
+ if (mm == NULL)
+ return 1;
psize = get_slice_psize(mm, ea);
ssize = user_segment_size(ea);
vsid = get_vsid(mm->context.id, ea, ssize);
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 75b9cd6..a51c188 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -845,7 +845,7 @@
return;
for_each_online_node(node) {
- printk(KERN_DEBUG "Node %d CPUs:", node);
+ pr_info("Node %d CPUs:", node);
count = 0;
/*
@@ -856,52 +856,18 @@
if (cpumask_test_cpu(cpu,
node_to_cpumask_map[node])) {
if (count == 0)
- printk(" %u", cpu);
+ pr_cont(" %u", cpu);
++count;
} else {
if (count > 1)
- printk("-%u", cpu - 1);
+ pr_cont("-%u", cpu - 1);
count = 0;
}
}
if (count > 1)
- printk("-%u", nr_cpu_ids - 1);
- printk("\n");
- }
-}
-
-static void __init dump_numa_memory_topology(void)
-{
- unsigned int node;
- unsigned int count;
-
- if (min_common_depth == -1 || !numa_enabled)
- return;
-
- for_each_online_node(node) {
- unsigned long i;
-
- printk(KERN_DEBUG "Node %d Memory:", node);
-
- count = 0;
-
- for (i = 0; i < memblock_end_of_DRAM();
- i += (1 << SECTION_SIZE_BITS)) {
- if (early_pfn_to_nid(i >> PAGE_SHIFT) == node) {
- if (count == 0)
- printk(" 0x%lx", i);
- ++count;
- } else {
- if (count > 0)
- printk("-0x%lx", i);
- count = 0;
- }
- }
-
- if (count > 0)
- printk("-0x%lx", i);
- printk("\n");
+ pr_cont("-%u", nr_cpu_ids - 1);
+ pr_cont("\n");
}
}
@@ -947,8 +913,6 @@
if (parse_numa_properties())
setup_nonnuma();
- else
- dump_numa_memory_topology();
memblock_dump_all();
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 1cab8a1..7a27eeb 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -119,8 +119,13 @@
vcpu->stat.exit_validity++;
trace_kvm_s390_intercept_validity(vcpu, viwhy);
- WARN_ONCE(true, "kvm: unhandled validity intercept 0x%x\n", viwhy);
- return -EOPNOTSUPP;
+ KVM_EVENT(3, "validity intercept 0x%x for pid %u (kvm 0x%pK)", viwhy,
+ current->pid, vcpu->kvm);
+
+ /* do not warn on invalid runtime instrumentation mode */
+ WARN_ONCE(viwhy != 0x44, "kvm: unhandled validity intercept 0x%x\n",
+ viwhy);
+ return -EINVAL;
}
static int handle_instruction(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 1188bc8..a396292 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -194,6 +194,8 @@
#define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */
#define X86_FEATURE_INTEL_PT ( 7*32+15) /* Intel Processor Trace */
+#define X86_FEATURE_AVX512_4VNNIW (7*32+16) /* AVX-512 Neural Network Instructions */
+#define X86_FEATURE_AVX512_4FMAPS (7*32+17) /* AVX-512 Multiply Accumulation Single precision */
/* Virtualization flags: Linux defined, word 8 */
#define X86_FEATURE_TPR_SHADOW ( 8*32+ 0) /* Intel TPR Shadow */
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index 2aaca53..ad6f5eb0 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -52,6 +52,15 @@
#include <asm/cpufeature.h>
#include <linux/atomic.h>
+struct thread_info {
+ unsigned long flags; /* low level flags */
+};
+
+#define INIT_THREAD_INFO(tsk) \
+{ \
+ .flags = 0, \
+}
+
#define init_stack (init_thread_union.stack)
#else /* !__ASSEMBLY__ */
diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c
index 8cb57df..1db8dc4 100644
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
@@ -32,6 +32,8 @@
static const struct cpuid_bit cpuid_bits[] = {
{ X86_FEATURE_INTEL_PT, CR_EBX,25, 0x00000007, 0 },
+ { X86_FEATURE_AVX512_4VNNIW, CR_EDX, 2, 0x00000007, 0 },
+ { X86_FEATURE_AVX512_4FMAPS, CR_EDX, 3, 0x00000007, 0 },
{ X86_FEATURE_APERFMPERF, CR_ECX, 0, 0x00000006, 0 },
{ X86_FEATURE_EPB, CR_ECX, 3, 0x00000006, 0 },
{ X86_FEATURE_HW_PSTATE, CR_EDX, 7, 0x80000007, 0 },
diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c
index 8116057..5130985 100644
--- a/arch/x86/kernel/cpu/vmware.c
+++ b/arch/x86/kernel/cpu/vmware.c
@@ -27,6 +27,7 @@
#include <asm/div64.h>
#include <asm/x86_init.h>
#include <asm/hypervisor.h>
+#include <asm/timer.h>
#include <asm/apic.h>
#define CPUID_VMWARE_INFO_LEAF 0x40000000
@@ -94,6 +95,10 @@
} else {
pr_warn("Failed to get TSC freq from the hypervisor\n");
}
+
+#ifdef CONFIG_X86_IO_APIC
+ no_timer_check = 1;
+#endif
}
/*
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index 124aa5c..095ef7d 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -74,6 +74,8 @@
setup_clear_cpu_cap(X86_FEATURE_MPX);
setup_clear_cpu_cap(X86_FEATURE_XGETBV1);
setup_clear_cpu_cap(X86_FEATURE_PKU);
+ setup_clear_cpu_cap(X86_FEATURE_AVX512_4VNNIW);
+ setup_clear_cpu_cap(X86_FEATURE_AVX512_4FMAPS);
}
/*
diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c
index 40df337..ec1f756 100644
--- a/arch/x86/kernel/signal_compat.c
+++ b/arch/x86/kernel/signal_compat.c
@@ -105,9 +105,6 @@
/* Don't let flags to be set from userspace */
act->sa.sa_flags &= ~(SA_IA32_ABI | SA_X32_ABI);
- if (user_64bit_mode(current_pt_regs()))
- return;
-
if (in_ia32_syscall())
act->sa.sa_flags |= SA_IA32_ABI;
if (in_x32_syscall())
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 951f093..42f5eb7 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1409,15 +1409,17 @@
/* No boot processor was found in mptable or ACPI MADT */
if (!num_processors) {
- int apicid = boot_cpu_physical_apicid;
- int cpu = hard_smp_processor_id();
+ if (boot_cpu_has(X86_FEATURE_APIC)) {
+ int apicid = boot_cpu_physical_apicid;
+ int cpu = hard_smp_processor_id();
- pr_warn("Boot CPU (id %d) not listed by BIOS\n", cpu);
+ pr_warn("Boot CPU (id %d) not listed by BIOS\n", cpu);
- /* Make sure boot cpu is enumerated */
- if (apic->cpu_present_to_apicid(0) == BAD_APICID &&
- apic->apic_id_valid(apicid))
- generic_processor_info(apicid, boot_cpu_apic_version);
+ /* Make sure boot cpu is enumerated */
+ if (apic->cpu_present_to_apicid(0) == BAD_APICID &&
+ apic->apic_id_valid(apicid))
+ generic_processor_info(apicid, boot_cpu_apic_version);
+ }
if (!num_processors)
num_processors = 1;
diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index c7220ba..1a22de7 100644
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -594,7 +594,7 @@
ioapic->irr = 0;
ioapic->irr_delivered = 0;
ioapic->id = 0;
- memset(ioapic->irq_eoi, 0x00, IOAPIC_NUM_PINS);
+ memset(ioapic->irq_eoi, 0x00, sizeof(ioapic->irq_eoi));
rtc_irq_eoi_tracking_reset(ioapic);
}
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 6c633de..e375235 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5733,13 +5733,13 @@
static void kvm_timer_init(void)
{
- int cpu;
-
max_tsc_khz = tsc_khz;
if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC)) {
#ifdef CONFIG_CPU_FREQ
struct cpufreq_policy policy;
+ int cpu;
+
memset(&policy, 0, sizeof(policy));
cpu = get_cpu();
cpufreq_get_policy(&policy, cpu);
diff --git a/arch/x86/platform/uv/bios_uv.c b/arch/x86/platform/uv/bios_uv.c
index b4d5e95..4a6a5a2 100644
--- a/arch/x86/platform/uv/bios_uv.c
+++ b/arch/x86/platform/uv/bios_uv.c
@@ -40,7 +40,15 @@
*/
return BIOS_STATUS_UNIMPLEMENTED;
- ret = efi_call_virt_pointer(tab, function, (u64)which, a1, a2, a3, a4, a5);
+ /*
+ * If EFI_OLD_MEMMAP is set, we need to fall back to using our old EFI
+ * callback method, which uses efi_call() directly, with the kernel page tables:
+ */
+ if (unlikely(test_bit(EFI_OLD_MEMMAP, &efi.flags)))
+ ret = efi_call((void *)__va(tab->function), (u64)which, a1, a2, a3, a4, a5);
+ else
+ ret = efi_call_virt_pointer(tab, function, (u64)which, a1, a2, a3, a4, a5);
+
return ret;
}
EXPORT_SYMBOL_GPL(uv_bios_call);
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index c0fdd57..bdd8556 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1837,6 +1837,7 @@
xen_domain_type = XEN_HVM_DOMAIN;
}
+#endif
static int xen_cpu_up_prepare(unsigned int cpu)
{
@@ -1887,6 +1888,7 @@
return 0;
}
+#ifdef CONFIG_XEN_PVHVM
#ifdef CONFIG_KEXEC_CORE
static void xen_hvm_shutdown(void)
{
diff --git a/drivers/Makefile b/drivers/Makefile
index f0afdfb..194d20b 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -21,7 +21,7 @@
obj-y += idle/
# IPMI must come before ACPI in order to provide IPMI opregion support
-obj-$(CONFIG_IPMI_HANDLER) += char/ipmi/
+obj-y += char/ipmi/
obj-$(CONFIG_ACPI) += acpi/
obj-$(CONFIG_SFI) += sfi/
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 4827945..d2d2c89 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -84,14 +84,14 @@
static void add_early_randomness(struct hwrng *rng)
{
- unsigned char bytes[16];
int bytes_read;
+ size_t size = min_t(size_t, 16, rng_buffer_size());
mutex_lock(&reading_mutex);
- bytes_read = rng_get_data(rng, bytes, sizeof(bytes), 1);
+ bytes_read = rng_get_data(rng, rng_buffer, size, 1);
mutex_unlock(&reading_mutex);
if (bytes_read > 0)
- add_device_randomness(bytes, bytes_read);
+ add_device_randomness(rng_buffer, bytes_read);
}
static inline void cleanup_rng(struct kref *kref)
diff --git a/drivers/char/ipmi/Kconfig b/drivers/char/ipmi/Kconfig
index 5a9350b..7f81665 100644
--- a/drivers/char/ipmi/Kconfig
+++ b/drivers/char/ipmi/Kconfig
@@ -76,3 +76,11 @@
the IPMI management controller is capable of this.
endif # IPMI_HANDLER
+
+config ASPEED_BT_IPMI_BMC
+ depends on ARCH_ASPEED
+ tristate "BT IPMI bmc driver"
+ help
+ Provides a driver for the BT (Block Transfer) IPMI interface
+ found on Aspeed SOCs (AST2400 and AST2500). The driver
+ implements the BMC side of the BT interface.
diff --git a/drivers/char/ipmi/Makefile b/drivers/char/ipmi/Makefile
index f3ffde1..0d98cd9 100644
--- a/drivers/char/ipmi/Makefile
+++ b/drivers/char/ipmi/Makefile
@@ -11,3 +11,4 @@
obj-$(CONFIG_IPMI_POWERNV) += ipmi_powernv.o
obj-$(CONFIG_IPMI_WATCHDOG) += ipmi_watchdog.o
obj-$(CONFIG_IPMI_POWEROFF) += ipmi_poweroff.o
+obj-$(CONFIG_ASPEED_BT_IPMI_BMC) += bt-bmc.o
diff --git a/drivers/char/ipmi/bt-bmc.c b/drivers/char/ipmi/bt-bmc.c
new file mode 100644
index 0000000..b49e613
--- /dev/null
+++ b/drivers/char/ipmi/bt-bmc.c
@@ -0,0 +1,505 @@
+/*
+ * Copyright (c) 2015-2016, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/atomic.h>
+#include <linux/bt-bmc.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/poll.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+
+/*
+ * This is a BMC device used to communicate to the host
+ */
+#define DEVICE_NAME "ipmi-bt-host"
+
+#define BT_IO_BASE 0xe4
+#define BT_IRQ 10
+
+#define BT_CR0 0x0
+#define BT_CR0_IO_BASE 16
+#define BT_CR0_IRQ 12
+#define BT_CR0_EN_CLR_SLV_RDP 0x8
+#define BT_CR0_EN_CLR_SLV_WRP 0x4
+#define BT_CR0_ENABLE_IBT 0x1
+#define BT_CR1 0x4
+#define BT_CR1_IRQ_H2B 0x01
+#define BT_CR1_IRQ_HBUSY 0x40
+#define BT_CR2 0x8
+#define BT_CR2_IRQ_H2B 0x01
+#define BT_CR2_IRQ_HBUSY 0x40
+#define BT_CR3 0xc
+#define BT_CTRL 0x10
+#define BT_CTRL_B_BUSY 0x80
+#define BT_CTRL_H_BUSY 0x40
+#define BT_CTRL_OEM0 0x20
+#define BT_CTRL_SMS_ATN 0x10
+#define BT_CTRL_B2H_ATN 0x08
+#define BT_CTRL_H2B_ATN 0x04
+#define BT_CTRL_CLR_RD_PTR 0x02
+#define BT_CTRL_CLR_WR_PTR 0x01
+#define BT_BMC2HOST 0x14
+#define BT_INTMASK 0x18
+#define BT_INTMASK_B2H_IRQEN 0x01
+#define BT_INTMASK_B2H_IRQ 0x02
+#define BT_INTMASK_BMC_HWRST 0x80
+
+#define BT_BMC_BUFFER_SIZE 256
+
+struct bt_bmc {
+ struct device dev;
+ struct miscdevice miscdev;
+ void __iomem *base;
+ int irq;
+ wait_queue_head_t queue;
+ struct timer_list poll_timer;
+ struct mutex mutex;
+};
+
+static atomic_t open_count = ATOMIC_INIT(0);
+
+static u8 bt_inb(struct bt_bmc *bt_bmc, int reg)
+{
+ return ioread8(bt_bmc->base + reg);
+}
+
+static void bt_outb(struct bt_bmc *bt_bmc, u8 data, int reg)
+{
+ iowrite8(data, bt_bmc->base + reg);
+}
+
+static void clr_rd_ptr(struct bt_bmc *bt_bmc)
+{
+ bt_outb(bt_bmc, BT_CTRL_CLR_RD_PTR, BT_CTRL);
+}
+
+static void clr_wr_ptr(struct bt_bmc *bt_bmc)
+{
+ bt_outb(bt_bmc, BT_CTRL_CLR_WR_PTR, BT_CTRL);
+}
+
+static void clr_h2b_atn(struct bt_bmc *bt_bmc)
+{
+ bt_outb(bt_bmc, BT_CTRL_H2B_ATN, BT_CTRL);
+}
+
+static void set_b_busy(struct bt_bmc *bt_bmc)
+{
+ if (!(bt_inb(bt_bmc, BT_CTRL) & BT_CTRL_B_BUSY))
+ bt_outb(bt_bmc, BT_CTRL_B_BUSY, BT_CTRL);
+}
+
+static void clr_b_busy(struct bt_bmc *bt_bmc)
+{
+ if (bt_inb(bt_bmc, BT_CTRL) & BT_CTRL_B_BUSY)
+ bt_outb(bt_bmc, BT_CTRL_B_BUSY, BT_CTRL);
+}
+
+static void set_b2h_atn(struct bt_bmc *bt_bmc)
+{
+ bt_outb(bt_bmc, BT_CTRL_B2H_ATN, BT_CTRL);
+}
+
+static u8 bt_read(struct bt_bmc *bt_bmc)
+{
+ return bt_inb(bt_bmc, BT_BMC2HOST);
+}
+
+static ssize_t bt_readn(struct bt_bmc *bt_bmc, u8 *buf, size_t n)
+{
+ int i;
+
+ for (i = 0; i < n; i++)
+ buf[i] = bt_read(bt_bmc);
+ return n;
+}
+
+static void bt_write(struct bt_bmc *bt_bmc, u8 c)
+{
+ bt_outb(bt_bmc, c, BT_BMC2HOST);
+}
+
+static ssize_t bt_writen(struct bt_bmc *bt_bmc, u8 *buf, size_t n)
+{
+ int i;
+
+ for (i = 0; i < n; i++)
+ bt_write(bt_bmc, buf[i]);
+ return n;
+}
+
+static void set_sms_atn(struct bt_bmc *bt_bmc)
+{
+ bt_outb(bt_bmc, BT_CTRL_SMS_ATN, BT_CTRL);
+}
+
+static struct bt_bmc *file_bt_bmc(struct file *file)
+{
+ return container_of(file->private_data, struct bt_bmc, miscdev);
+}
+
+static int bt_bmc_open(struct inode *inode, struct file *file)
+{
+ struct bt_bmc *bt_bmc = file_bt_bmc(file);
+
+ if (atomic_inc_return(&open_count) == 1) {
+ clr_b_busy(bt_bmc);
+ return 0;
+ }
+
+ atomic_dec(&open_count);
+ return -EBUSY;
+}
+
+/*
+ * The BT (Block Transfer) interface means that entire messages are
+ * buffered by the host before a notification is sent to the BMC that
+ * there is data to be read. The first byte is the length and the
+ * message data follows. The read operation just tries to capture the
+ * whole before returning it to userspace.
+ *
+ * BT Message format :
+ *
+ * Byte 1 Byte 2 Byte 3 Byte 4 Byte 5:N
+ * Length NetFn/LUN Seq Cmd Data
+ *
+ */
+static ssize_t bt_bmc_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct bt_bmc *bt_bmc = file_bt_bmc(file);
+ u8 len;
+ int len_byte = 1;
+ u8 kbuffer[BT_BMC_BUFFER_SIZE];
+ ssize_t ret = 0;
+ ssize_t nread;
+
+ if (!access_ok(VERIFY_WRITE, buf, count))
+ return -EFAULT;
+
+ WARN_ON(*ppos);
+
+ if (wait_event_interruptible(bt_bmc->queue,
+ bt_inb(bt_bmc, BT_CTRL) & BT_CTRL_H2B_ATN))
+ return -ERESTARTSYS;
+
+ mutex_lock(&bt_bmc->mutex);
+
+ if (unlikely(!(bt_inb(bt_bmc, BT_CTRL) & BT_CTRL_H2B_ATN))) {
+ ret = -EIO;
+ goto out_unlock;
+ }
+
+ set_b_busy(bt_bmc);
+ clr_h2b_atn(bt_bmc);
+ clr_rd_ptr(bt_bmc);
+
+ /*
+ * The BT frames start with the message length, which does not
+ * include the length byte.
+ */
+ kbuffer[0] = bt_read(bt_bmc);
+ len = kbuffer[0];
+
+ /* We pass the length back to userspace as well */
+ if (len + 1 > count)
+ len = count - 1;
+
+ while (len) {
+ nread = min_t(ssize_t, len, sizeof(kbuffer) - len_byte);
+
+ bt_readn(bt_bmc, kbuffer + len_byte, nread);
+
+ if (copy_to_user(buf, kbuffer, nread + len_byte)) {
+ ret = -EFAULT;
+ break;
+ }
+ len -= nread;
+ buf += nread + len_byte;
+ ret += nread + len_byte;
+ len_byte = 0;
+ }
+
+ clr_b_busy(bt_bmc);
+
+out_unlock:
+ mutex_unlock(&bt_bmc->mutex);
+ return ret;
+}
+
+/*
+ * BT Message response format :
+ *
+ * Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6:N
+ * Length NetFn/LUN Seq Cmd Code Data
+ */
+static ssize_t bt_bmc_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct bt_bmc *bt_bmc = file_bt_bmc(file);
+ u8 kbuffer[BT_BMC_BUFFER_SIZE];
+ ssize_t ret = 0;
+ ssize_t nwritten;
+
+ /*
+ * send a minimum response size
+ */
+ if (count < 5)
+ return -EINVAL;
+
+ if (!access_ok(VERIFY_READ, buf, count))
+ return -EFAULT;
+
+ WARN_ON(*ppos);
+
+ /*
+ * There's no interrupt for clearing bmc busy so we have to
+ * poll
+ */
+ if (wait_event_interruptible(bt_bmc->queue,
+ !(bt_inb(bt_bmc, BT_CTRL) &
+ (BT_CTRL_H_BUSY | BT_CTRL_B2H_ATN))))
+ return -ERESTARTSYS;
+
+ mutex_lock(&bt_bmc->mutex);
+
+ if (unlikely(bt_inb(bt_bmc, BT_CTRL) &
+ (BT_CTRL_H_BUSY | BT_CTRL_B2H_ATN))) {
+ ret = -EIO;
+ goto out_unlock;
+ }
+
+ clr_wr_ptr(bt_bmc);
+
+ while (count) {
+ nwritten = min_t(ssize_t, count, sizeof(kbuffer));
+ if (copy_from_user(&kbuffer, buf, nwritten)) {
+ ret = -EFAULT;
+ break;
+ }
+
+ bt_writen(bt_bmc, kbuffer, nwritten);
+
+ count -= nwritten;
+ buf += nwritten;
+ ret += nwritten;
+ }
+
+ set_b2h_atn(bt_bmc);
+
+out_unlock:
+ mutex_unlock(&bt_bmc->mutex);
+ return ret;
+}
+
+static long bt_bmc_ioctl(struct file *file, unsigned int cmd,
+ unsigned long param)
+{
+ struct bt_bmc *bt_bmc = file_bt_bmc(file);
+
+ switch (cmd) {
+ case BT_BMC_IOCTL_SMS_ATN:
+ set_sms_atn(bt_bmc);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int bt_bmc_release(struct inode *inode, struct file *file)
+{
+ struct bt_bmc *bt_bmc = file_bt_bmc(file);
+
+ atomic_dec(&open_count);
+ set_b_busy(bt_bmc);
+ return 0;
+}
+
+static unsigned int bt_bmc_poll(struct file *file, poll_table *wait)
+{
+ struct bt_bmc *bt_bmc = file_bt_bmc(file);
+ unsigned int mask = 0;
+ u8 ctrl;
+
+ poll_wait(file, &bt_bmc->queue, wait);
+
+ ctrl = bt_inb(bt_bmc, BT_CTRL);
+
+ if (ctrl & BT_CTRL_H2B_ATN)
+ mask |= POLLIN;
+
+ if (!(ctrl & (BT_CTRL_H_BUSY | BT_CTRL_B2H_ATN)))
+ mask |= POLLOUT;
+
+ return mask;
+}
+
+static const struct file_operations bt_bmc_fops = {
+ .owner = THIS_MODULE,
+ .open = bt_bmc_open,
+ .read = bt_bmc_read,
+ .write = bt_bmc_write,
+ .release = bt_bmc_release,
+ .poll = bt_bmc_poll,
+ .unlocked_ioctl = bt_bmc_ioctl,
+};
+
+static void poll_timer(unsigned long data)
+{
+ struct bt_bmc *bt_bmc = (void *)data;
+
+ bt_bmc->poll_timer.expires += msecs_to_jiffies(500);
+ wake_up(&bt_bmc->queue);
+ add_timer(&bt_bmc->poll_timer);
+}
+
+static irqreturn_t bt_bmc_irq(int irq, void *arg)
+{
+ struct bt_bmc *bt_bmc = arg;
+ u32 reg;
+
+ reg = ioread32(bt_bmc->base + BT_CR2);
+ reg &= BT_CR2_IRQ_H2B | BT_CR2_IRQ_HBUSY;
+ if (!reg)
+ return IRQ_NONE;
+
+ /* ack pending IRQs */
+ iowrite32(reg, bt_bmc->base + BT_CR2);
+
+ wake_up(&bt_bmc->queue);
+ return IRQ_HANDLED;
+}
+
+static int bt_bmc_config_irq(struct bt_bmc *bt_bmc,
+ struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ u32 reg;
+ int rc;
+
+ bt_bmc->irq = platform_get_irq(pdev, 0);
+ if (!bt_bmc->irq)
+ return -ENODEV;
+
+ rc = devm_request_irq(dev, bt_bmc->irq, bt_bmc_irq, IRQF_SHARED,
+ DEVICE_NAME, bt_bmc);
+ if (rc < 0) {
+ dev_warn(dev, "Unable to request IRQ %d\n", bt_bmc->irq);
+ bt_bmc->irq = 0;
+ return rc;
+ }
+
+ /*
+ * Configure IRQs on the bmc clearing the H2B and HBUSY bits;
+ * H2B will be asserted when the bmc has data for us; HBUSY
+ * will be cleared (along with B2H) when we can write the next
+ * message to the BT buffer
+ */
+ reg = ioread32(bt_bmc->base + BT_CR1);
+ reg |= BT_CR1_IRQ_H2B | BT_CR1_IRQ_HBUSY;
+ iowrite32(reg, bt_bmc->base + BT_CR1);
+
+ return 0;
+}
+
+static int bt_bmc_probe(struct platform_device *pdev)
+{
+ struct bt_bmc *bt_bmc;
+ struct device *dev;
+ struct resource *res;
+ int rc;
+
+ if (!pdev || !pdev->dev.of_node)
+ return -ENODEV;
+
+ dev = &pdev->dev;
+ dev_info(dev, "Found bt bmc device\n");
+
+ bt_bmc = devm_kzalloc(dev, sizeof(*bt_bmc), GFP_KERNEL);
+ if (!bt_bmc)
+ return -ENOMEM;
+
+ dev_set_drvdata(&pdev->dev, bt_bmc);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ bt_bmc->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(bt_bmc->base))
+ return PTR_ERR(bt_bmc->base);
+
+ mutex_init(&bt_bmc->mutex);
+ init_waitqueue_head(&bt_bmc->queue);
+
+ bt_bmc->miscdev.minor = MISC_DYNAMIC_MINOR,
+ bt_bmc->miscdev.name = DEVICE_NAME,
+ bt_bmc->miscdev.fops = &bt_bmc_fops,
+ bt_bmc->miscdev.parent = dev;
+ rc = misc_register(&bt_bmc->miscdev);
+ if (rc) {
+ dev_err(dev, "Unable to register misc device\n");
+ return rc;
+ }
+
+ bt_bmc_config_irq(bt_bmc, pdev);
+
+ if (bt_bmc->irq) {
+ dev_info(dev, "Using IRQ %d\n", bt_bmc->irq);
+ } else {
+ dev_info(dev, "No IRQ; using timer\n");
+ setup_timer(&bt_bmc->poll_timer, poll_timer,
+ (unsigned long)bt_bmc);
+ bt_bmc->poll_timer.expires = jiffies + msecs_to_jiffies(10);
+ add_timer(&bt_bmc->poll_timer);
+ }
+
+ iowrite32((BT_IO_BASE << BT_CR0_IO_BASE) |
+ (BT_IRQ << BT_CR0_IRQ) |
+ BT_CR0_EN_CLR_SLV_RDP |
+ BT_CR0_EN_CLR_SLV_WRP |
+ BT_CR0_ENABLE_IBT,
+ bt_bmc->base + BT_CR0);
+
+ clr_b_busy(bt_bmc);
+
+ return 0;
+}
+
+static int bt_bmc_remove(struct platform_device *pdev)
+{
+ struct bt_bmc *bt_bmc = dev_get_drvdata(&pdev->dev);
+
+ misc_deregister(&bt_bmc->miscdev);
+ if (!bt_bmc->irq)
+ del_timer_sync(&bt_bmc->poll_timer);
+ return 0;
+}
+
+static const struct of_device_id bt_bmc_match[] = {
+ { .compatible = "aspeed,ast2400-bt-bmc" },
+ { },
+};
+
+static struct platform_driver bt_bmc_driver = {
+ .driver = {
+ .name = DEVICE_NAME,
+ .of_match_table = bt_bmc_match,
+ },
+ .probe = bt_bmc_probe,
+ .remove = bt_bmc_remove,
+};
+
+module_platform_driver(bt_bmc_driver);
+
+MODULE_DEVICE_TABLE(of, bt_bmc_match);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alistair Popple <alistair@popple.id.au>");
+MODULE_DESCRIPTION("Linux device interface to the BT interface");
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index d8619998..fcdd886 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -2891,11 +2891,11 @@
intf->curr_channel = IPMI_MAX_CHANNELS;
}
+ rv = ipmi_bmc_register(intf, i);
+
if (rv == 0)
rv = add_proc_entries(intf, i);
- rv = ipmi_bmc_register(intf, i);
-
out:
if (rv) {
if (intf->proc_dir)
@@ -2982,8 +2982,6 @@
int intf_num = intf->intf_num;
ipmi_user_t user;
- ipmi_bmc_unregister(intf);
-
mutex_lock(&smi_watchers_mutex);
mutex_lock(&ipmi_interfaces_mutex);
intf->intf_num = -1;
@@ -3007,6 +3005,7 @@
mutex_unlock(&ipmi_interfaces_mutex);
remove_proc_entries(intf);
+ ipmi_bmc_unregister(intf);
/*
* Call all the watcher interfaces to tell them that
diff --git a/drivers/clk/at91/clk-programmable.c b/drivers/clk/at91/clk-programmable.c
index 190122e64..85a449c 100644
--- a/drivers/clk/at91/clk-programmable.c
+++ b/drivers/clk/at91/clk-programmable.c
@@ -203,7 +203,7 @@
ret = clk_hw_register(NULL, &prog->hw);
if (ret) {
kfree(prog);
- hw = &prog->hw;
+ hw = ERR_PTR(ret);
}
return hw;
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index b68bf57..8c7763f 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -502,8 +502,12 @@
static long bcm2835_pll_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *parent_rate)
{
+ struct bcm2835_pll *pll = container_of(hw, struct bcm2835_pll, hw);
+ const struct bcm2835_pll_data *data = pll->data;
u32 ndiv, fdiv;
+ rate = clamp(rate, data->min_rate, data->max_rate);
+
bcm2835_pll_choose_ndiv_and_fdiv(rate, *parent_rate, &ndiv, &fdiv);
return bcm2835_pll_rate_from_divisors(*parent_rate, ndiv, fdiv, 1);
@@ -608,13 +612,6 @@
u32 ana[4];
int i;
- if (rate < data->min_rate || rate > data->max_rate) {
- dev_err(cprman->dev, "%s: rate out of spec: %lu vs (%lu, %lu)\n",
- clk_hw_get_name(hw), rate,
- data->min_rate, data->max_rate);
- return -EINVAL;
- }
-
if (rate > data->max_fb_rate) {
use_fb_prediv = true;
rate /= 2;
diff --git a/drivers/clk/clk-max77686.c b/drivers/clk/clk-max77686.c
index b637f59..eb953d3 100644
--- a/drivers/clk/clk-max77686.c
+++ b/drivers/clk/clk-max77686.c
@@ -216,6 +216,7 @@
return -EINVAL;
}
+ drv_data->num_clks = num_clks;
drv_data->max_clk_data = devm_kcalloc(dev, num_clks,
sizeof(*drv_data->max_clk_data),
GFP_KERNEL);
diff --git a/drivers/clk/hisilicon/clk-hi6220.c b/drivers/clk/hisilicon/clk-hi6220.c
index fe364e6..c0e8e1f 100644
--- a/drivers/clk/hisilicon/clk-hi6220.c
+++ b/drivers/clk/hisilicon/clk-hi6220.c
@@ -195,7 +195,7 @@
hi6220_clk_register_divider(hi6220_div_clks_sys,
ARRAY_SIZE(hi6220_div_clks_sys), clk_data);
}
-CLK_OF_DECLARE(hi6220_clk_sys, "hisilicon,hi6220-sysctrl", hi6220_clk_sys_init);
+CLK_OF_DECLARE_DRIVER(hi6220_clk_sys, "hisilicon,hi6220-sysctrl", hi6220_clk_sys_init);
/* clocks in media controller */
@@ -252,7 +252,7 @@
hi6220_clk_register_divider(hi6220_div_clks_media,
ARRAY_SIZE(hi6220_div_clks_media), clk_data);
}
-CLK_OF_DECLARE(hi6220_clk_media, "hisilicon,hi6220-mediactrl", hi6220_clk_media_init);
+CLK_OF_DECLARE_DRIVER(hi6220_clk_media, "hisilicon,hi6220-mediactrl", hi6220_clk_media_init);
/* clocks in pmctrl */
diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 380c372..f042bd2 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -8,6 +8,7 @@
config COMMON_CLK_MT8135
bool "Clock driver for Mediatek MT8135"
+ depends on ARCH_MEDIATEK || COMPILE_TEST
select COMMON_CLK_MEDIATEK
default ARCH_MEDIATEK
---help---
@@ -15,6 +16,7 @@
config COMMON_CLK_MT8173
bool "Clock driver for Mediatek MT8173"
+ depends on ARCH_MEDIATEK || COMPILE_TEST
select COMMON_CLK_MEDIATEK
default ARCH_MEDIATEK
---help---
diff --git a/drivers/clk/mvebu/armada-37xx-periph.c b/drivers/clk/mvebu/armada-37xx-periph.c
index 45905fc..cecb0fd 100644
--- a/drivers/clk/mvebu/armada-37xx-periph.c
+++ b/drivers/clk/mvebu/armada-37xx-periph.c
@@ -305,7 +305,7 @@
};
static int armada_3700_add_composite_clk(const struct clk_periph_data *data,
void __iomem *reg, spinlock_t *lock,
- struct device *dev, struct clk_hw *hw)
+ struct device *dev, struct clk_hw **hw)
{
const struct clk_ops *mux_ops = NULL, *gate_ops = NULL,
*rate_ops = NULL;
@@ -329,6 +329,7 @@
gate->lock = lock;
gate_ops = gate_hw->init->ops;
gate->reg = reg + (u64)gate->reg;
+ gate->flags = CLK_GATE_SET_TO_DISABLE;
}
if (data->rate_hw) {
@@ -353,13 +354,13 @@
}
}
- hw = clk_hw_register_composite(dev, data->name, data->parent_names,
+ *hw = clk_hw_register_composite(dev, data->name, data->parent_names,
data->num_parents, mux_hw,
mux_ops, rate_hw, rate_ops,
gate_hw, gate_ops, CLK_IGNORE_UNUSED);
- if (IS_ERR(hw))
- return PTR_ERR(hw);
+ if (IS_ERR(*hw))
+ return PTR_ERR(*hw);
return 0;
}
@@ -400,7 +401,7 @@
spin_lock_init(&driver_data->lock);
for (i = 0; i < num_periph; i++) {
- struct clk_hw *hw = driver_data->hw_data->hws[i];
+ struct clk_hw **hw = &driver_data->hw_data->hws[i];
if (armada_3700_add_composite_clk(&data[i], reg,
&driver_data->lock, dev, hw))
diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c
index 51d152f..17e68a7 100644
--- a/drivers/clk/samsung/clk-exynos-audss.c
+++ b/drivers/clk/samsung/clk-exynos-audss.c
@@ -106,6 +106,7 @@
},
{ },
};
+MODULE_DEVICE_TABLE(of, exynos_audss_clk_of_match);
static void exynos_audss_clk_teardown(void)
{
diff --git a/drivers/clk/uniphier/clk-uniphier-core.c b/drivers/clk/uniphier/clk-uniphier-core.c
index 5ffb898..26c53f7 100644
--- a/drivers/clk/uniphier/clk-uniphier-core.c
+++ b/drivers/clk/uniphier/clk-uniphier-core.c
@@ -79,7 +79,7 @@
hw_data->num = clk_num;
/* avoid returning NULL for unused idx */
- for (; clk_num >= 0; clk_num--)
+ while (--clk_num >= 0)
hw_data->hws[clk_num] = ERR_PTR(-EINVAL);
for (p = data; p->name; p++) {
@@ -111,6 +111,10 @@
static const struct of_device_id uniphier_clk_match[] = {
/* System clock */
{
+ .compatible = "socionext,uniphier-sld3-clock",
+ .data = uniphier_sld3_sys_clk_data,
+ },
+ {
.compatible = "socionext,uniphier-ld4-clock",
.data = uniphier_ld4_sys_clk_data,
},
@@ -138,7 +142,7 @@
.compatible = "socionext,uniphier-ld20-clock",
.data = uniphier_ld20_sys_clk_data,
},
- /* Media I/O clock */
+ /* Media I/O clock, SD clock */
{
.compatible = "socionext,uniphier-sld3-mio-clock",
.data = uniphier_sld3_mio_clk_data,
@@ -156,20 +160,20 @@
.data = uniphier_sld3_mio_clk_data,
},
{
- .compatible = "socionext,uniphier-pro5-mio-clock",
- .data = uniphier_pro5_mio_clk_data,
+ .compatible = "socionext,uniphier-pro5-sd-clock",
+ .data = uniphier_pro5_sd_clk_data,
},
{
- .compatible = "socionext,uniphier-pxs2-mio-clock",
- .data = uniphier_pro5_mio_clk_data,
+ .compatible = "socionext,uniphier-pxs2-sd-clock",
+ .data = uniphier_pro5_sd_clk_data,
},
{
.compatible = "socionext,uniphier-ld11-mio-clock",
.data = uniphier_sld3_mio_clk_data,
},
{
- .compatible = "socionext,uniphier-ld20-mio-clock",
- .data = uniphier_pro5_mio_clk_data,
+ .compatible = "socionext,uniphier-ld20-sd-clock",
+ .data = uniphier_pro5_sd_clk_data,
},
/* Peripheral clock */
{
diff --git a/drivers/clk/uniphier/clk-uniphier-mio.c b/drivers/clk/uniphier/clk-uniphier-mio.c
index 6aa7ec7..218d20f 100644
--- a/drivers/clk/uniphier/clk-uniphier-mio.c
+++ b/drivers/clk/uniphier/clk-uniphier-mio.c
@@ -93,7 +93,7 @@
{ /* sentinel */ }
};
-const struct uniphier_clk_data uniphier_pro5_mio_clk_data[] = {
+const struct uniphier_clk_data uniphier_pro5_sd_clk_data[] = {
UNIPHIER_MIO_CLK_SD_FIXED,
UNIPHIER_MIO_CLK_SD(0, 0),
UNIPHIER_MIO_CLK_SD(1, 1),
diff --git a/drivers/clk/uniphier/clk-uniphier-mux.c b/drivers/clk/uniphier/clk-uniphier-mux.c
index 15a2f2c..2c243a8 100644
--- a/drivers/clk/uniphier/clk-uniphier-mux.c
+++ b/drivers/clk/uniphier/clk-uniphier-mux.c
@@ -42,7 +42,7 @@
struct uniphier_clk_mux *mux = to_uniphier_clk_mux(hw);
int num_parents = clk_hw_get_num_parents(hw);
int ret;
- u32 val;
+ unsigned int val;
u8 i;
ret = regmap_read(mux->regmap, mux->reg, &val);
diff --git a/drivers/clk/uniphier/clk-uniphier.h b/drivers/clk/uniphier/clk-uniphier.h
index 3ae1840..0244dba 100644
--- a/drivers/clk/uniphier/clk-uniphier.h
+++ b/drivers/clk/uniphier/clk-uniphier.h
@@ -115,7 +115,7 @@
extern const struct uniphier_clk_data uniphier_ld11_sys_clk_data[];
extern const struct uniphier_clk_data uniphier_ld20_sys_clk_data[];
extern const struct uniphier_clk_data uniphier_sld3_mio_clk_data[];
-extern const struct uniphier_clk_data uniphier_pro5_mio_clk_data[];
+extern const struct uniphier_clk_data uniphier_pro5_sd_clk_data[];
extern const struct uniphier_clk_data uniphier_ld4_peri_clk_data[];
extern const struct uniphier_clk_data uniphier_pro4_peri_clk_data[];
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 2451908..e2c6e43 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -417,6 +417,16 @@
config SYS_SUPPORTS_EM_STI
bool
+config CLKSRC_JCORE_PIT
+ bool "J-Core PIT timer driver" if COMPILE_TEST
+ depends on OF
+ depends on GENERIC_CLOCKEVENTS
+ depends on HAS_IOMEM
+ select CLKSRC_MMIO
+ help
+ This enables build of clocksource and clockevent driver for
+ the integrated PIT in the J-Core synthesizable, open source SoC.
+
config SH_TIMER_CMT
bool "Renesas CMT timer driver" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index fd9d6df..cf87f40 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -5,6 +5,7 @@
obj-$(CONFIG_X86_PM_TIMER) += acpi_pm.o
obj-$(CONFIG_SCx200HR_TIMER) += scx200_hrt.o
obj-$(CONFIG_CS5535_CLOCK_EVENT_SRC) += cs5535-clockevt.o
+obj-$(CONFIG_CLKSRC_JCORE_PIT) += jcore-pit.o
obj-$(CONFIG_SH_TIMER_CMT) += sh_cmt.o
obj-$(CONFIG_SH_TIMER_MTU2) += sh_mtu2.o
obj-$(CONFIG_SH_TIMER_TMU) += sh_tmu.o
diff --git a/drivers/clocksource/jcore-pit.c b/drivers/clocksource/jcore-pit.c
new file mode 100644
index 0000000..54e1665
--- /dev/null
+++ b/drivers/clocksource/jcore-pit.c
@@ -0,0 +1,249 @@
+/*
+ * J-Core SoC PIT/clocksource driver
+ *
+ * Copyright (C) 2015-2016 Smart Energy Instruments, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/clockchips.h>
+#include <linux/clocksource.h>
+#include <linux/sched_clock.h>
+#include <linux/cpu.h>
+#include <linux/cpuhotplug.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
+#define PIT_IRQ_SHIFT 12
+#define PIT_PRIO_SHIFT 20
+#define PIT_ENABLE_SHIFT 26
+#define PIT_PRIO_MASK 0xf
+
+#define REG_PITEN 0x00
+#define REG_THROT 0x10
+#define REG_COUNT 0x14
+#define REG_BUSPD 0x18
+#define REG_SECHI 0x20
+#define REG_SECLO 0x24
+#define REG_NSEC 0x28
+
+struct jcore_pit {
+ struct clock_event_device ced;
+ void __iomem *base;
+ unsigned long periodic_delta;
+ u32 enable_val;
+};
+
+static void __iomem *jcore_pit_base;
+static struct jcore_pit __percpu *jcore_pit_percpu;
+
+static notrace u64 jcore_sched_clock_read(void)
+{
+ u32 seclo, nsec, seclo0;
+ __iomem void *base = jcore_pit_base;
+
+ seclo = readl(base + REG_SECLO);
+ do {
+ seclo0 = seclo;
+ nsec = readl(base + REG_NSEC);
+ seclo = readl(base + REG_SECLO);
+ } while (seclo0 != seclo);
+
+ return seclo * NSEC_PER_SEC + nsec;
+}
+
+static cycle_t jcore_clocksource_read(struct clocksource *cs)
+{
+ return jcore_sched_clock_read();
+}
+
+static int jcore_pit_disable(struct jcore_pit *pit)
+{
+ writel(0, pit->base + REG_PITEN);
+ return 0;
+}
+
+static int jcore_pit_set(unsigned long delta, struct jcore_pit *pit)
+{
+ jcore_pit_disable(pit);
+ writel(delta, pit->base + REG_THROT);
+ writel(pit->enable_val, pit->base + REG_PITEN);
+ return 0;
+}
+
+static int jcore_pit_set_state_shutdown(struct clock_event_device *ced)
+{
+ struct jcore_pit *pit = container_of(ced, struct jcore_pit, ced);
+
+ return jcore_pit_disable(pit);
+}
+
+static int jcore_pit_set_state_oneshot(struct clock_event_device *ced)
+{
+ struct jcore_pit *pit = container_of(ced, struct jcore_pit, ced);
+
+ return jcore_pit_disable(pit);
+}
+
+static int jcore_pit_set_state_periodic(struct clock_event_device *ced)
+{
+ struct jcore_pit *pit = container_of(ced, struct jcore_pit, ced);
+
+ return jcore_pit_set(pit->periodic_delta, pit);
+}
+
+static int jcore_pit_set_next_event(unsigned long delta,
+ struct clock_event_device *ced)
+{
+ struct jcore_pit *pit = container_of(ced, struct jcore_pit, ced);
+
+ return jcore_pit_set(delta, pit);
+}
+
+static int jcore_pit_local_init(unsigned cpu)
+{
+ struct jcore_pit *pit = this_cpu_ptr(jcore_pit_percpu);
+ unsigned buspd, freq;
+
+ pr_info("Local J-Core PIT init on cpu %u\n", cpu);
+
+ buspd = readl(pit->base + REG_BUSPD);
+ freq = DIV_ROUND_CLOSEST(NSEC_PER_SEC, buspd);
+ pit->periodic_delta = DIV_ROUND_CLOSEST(NSEC_PER_SEC, HZ * buspd);
+
+ clockevents_config_and_register(&pit->ced, freq, 1, ULONG_MAX);
+
+ return 0;
+}
+
+static irqreturn_t jcore_timer_interrupt(int irq, void *dev_id)
+{
+ struct jcore_pit *pit = this_cpu_ptr(dev_id);
+
+ if (clockevent_state_oneshot(&pit->ced))
+ jcore_pit_disable(pit);
+
+ pit->ced.event_handler(&pit->ced);
+
+ return IRQ_HANDLED;
+}
+
+static int __init jcore_pit_init(struct device_node *node)
+{
+ int err;
+ unsigned pit_irq, cpu;
+ unsigned long hwirq;
+ u32 irqprio, enable_val;
+
+ jcore_pit_base = of_iomap(node, 0);
+ if (!jcore_pit_base) {
+ pr_err("Error: Cannot map base address for J-Core PIT\n");
+ return -ENXIO;
+ }
+
+ pit_irq = irq_of_parse_and_map(node, 0);
+ if (!pit_irq) {
+ pr_err("Error: J-Core PIT has no IRQ\n");
+ return -ENXIO;
+ }
+
+ pr_info("Initializing J-Core PIT at %p IRQ %d\n",
+ jcore_pit_base, pit_irq);
+
+ err = clocksource_mmio_init(jcore_pit_base, "jcore_pit_cs",
+ NSEC_PER_SEC, 400, 32,
+ jcore_clocksource_read);
+ if (err) {
+ pr_err("Error registering clocksource device: %d\n", err);
+ return err;
+ }
+
+ sched_clock_register(jcore_sched_clock_read, 32, NSEC_PER_SEC);
+
+ jcore_pit_percpu = alloc_percpu(struct jcore_pit);
+ if (!jcore_pit_percpu) {
+ pr_err("Failed to allocate memory for clock event device\n");
+ return -ENOMEM;
+ }
+
+ err = request_irq(pit_irq, jcore_timer_interrupt,
+ IRQF_TIMER | IRQF_PERCPU,
+ "jcore_pit", jcore_pit_percpu);
+ if (err) {
+ pr_err("pit irq request failed: %d\n", err);
+ free_percpu(jcore_pit_percpu);
+ return err;
+ }
+
+ /*
+ * The J-Core PIT is not hard-wired to a particular IRQ, but
+ * integrated with the interrupt controller such that the IRQ it
+ * generates is programmable, as follows:
+ *
+ * The bit layout of the PIT enable register is:
+ *
+ * .....e..ppppiiiiiiii............
+ *
+ * where the .'s indicate unrelated/unused bits, e is enable,
+ * p is priority, and i is hard irq number.
+ *
+ * For the PIT included in AIC1 (obsolete but still in use),
+ * any hard irq (trap number) can be programmed via the 8
+ * iiiiiiii bits, and a priority (0-15) is programmable
+ * separately in the pppp bits.
+ *
+ * For the PIT included in AIC2 (current), the programming
+ * interface is equivalent modulo interrupt mapping. This is
+ * why a different compatible tag was not used. However only
+ * traps 64-127 (the ones actually intended to be used for
+ * interrupts, rather than syscalls/exceptions/etc.) can be
+ * programmed (the high 2 bits of i are ignored) and the
+ * priority pppp is <<2'd and or'd onto the irq number. This
+ * choice seems to have been made on the hardware engineering
+ * side under an assumption that preserving old AIC1 priority
+ * mappings was important. Future models will likely ignore
+ * the pppp field.
+ */
+ hwirq = irq_get_irq_data(pit_irq)->hwirq;
+ irqprio = (hwirq >> 2) & PIT_PRIO_MASK;
+ enable_val = (1U << PIT_ENABLE_SHIFT)
+ | (hwirq << PIT_IRQ_SHIFT)
+ | (irqprio << PIT_PRIO_SHIFT);
+
+ for_each_present_cpu(cpu) {
+ struct jcore_pit *pit = per_cpu_ptr(jcore_pit_percpu, cpu);
+
+ pit->base = of_iomap(node, cpu);
+ if (!pit->base) {
+ pr_err("Unable to map PIT for cpu %u\n", cpu);
+ continue;
+ }
+
+ pit->ced.name = "jcore_pit";
+ pit->ced.features = CLOCK_EVT_FEAT_PERIODIC
+ | CLOCK_EVT_FEAT_ONESHOT
+ | CLOCK_EVT_FEAT_PERCPU;
+ pit->ced.cpumask = cpumask_of(cpu);
+ pit->ced.rating = 400;
+ pit->ced.irq = pit_irq;
+ pit->ced.set_state_shutdown = jcore_pit_set_state_shutdown;
+ pit->ced.set_state_periodic = jcore_pit_set_state_periodic;
+ pit->ced.set_state_oneshot = jcore_pit_set_state_oneshot;
+ pit->ced.set_next_event = jcore_pit_set_next_event;
+
+ pit->enable_val = enable_val;
+ }
+
+ cpuhp_setup_state(CPUHP_AP_JCORE_TIMER_STARTING,
+ "AP_JCORE_TIMER_STARTING",
+ jcore_pit_local_init, NULL);
+
+ return 0;
+}
+
+CLOCKSOURCE_OF_DECLARE(jcore_pit, "jcore,pit", jcore_pit_init);
diff --git a/drivers/clocksource/timer-sun5i.c b/drivers/clocksource/timer-sun5i.c
index c184eb8..4f87f3e 100644
--- a/drivers/clocksource/timer-sun5i.c
+++ b/drivers/clocksource/timer-sun5i.c
@@ -152,6 +152,13 @@
return IRQ_HANDLED;
}
+static cycle_t sun5i_clksrc_read(struct clocksource *clksrc)
+{
+ struct sun5i_timer_clksrc *cs = to_sun5i_timer_clksrc(clksrc);
+
+ return ~readl(cs->timer.base + TIMER_CNTVAL_LO_REG(1));
+}
+
static int sun5i_rate_cb_clksrc(struct notifier_block *nb,
unsigned long event, void *data)
{
@@ -210,8 +217,13 @@
writel(TIMER_CTL_ENABLE | TIMER_CTL_RELOAD,
base + TIMER_CTL_REG(1));
- ret = clocksource_mmio_init(base + TIMER_CNTVAL_LO_REG(1), node->name,
- rate, 340, 32, clocksource_mmio_readl_down);
+ cs->clksrc.name = node->name;
+ cs->clksrc.rating = 340;
+ cs->clksrc.read = sun5i_clksrc_read;
+ cs->clksrc.mask = CLOCKSOURCE_MASK(32);
+ cs->clksrc.flags = CLOCK_SOURCE_IS_CONTINUOUS;
+
+ ret = clocksource_register_hz(&cs->clksrc, rate);
if (ret) {
pr_err("Couldn't register clock source.\n");
goto err_remove_notifier;
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index c069451..5e23e2d 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -11,7 +11,7 @@
-mno-mmx -mno-sse
cflags-$(CONFIG_ARM64) := $(subst -pg,,$(KBUILD_CFLAGS))
-cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) \
+cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) -g0 \
-fno-builtin -fpic -mno-single-pic-base
cflags-$(CONFIG_EFI_ARMSTUB) += -I$(srctree)/scripts/dtc/libfdt
@@ -79,5 +79,6 @@
# decompressor. So move our .data to .data.efistub, which is preserved
# explicitly by the decompressor linker script.
#
-STUBCOPY_FLAGS-$(CONFIG_ARM) += --rename-section .data=.data.efistub
+STUBCOPY_FLAGS-$(CONFIG_ARM) += --rename-section .data=.data.efistub \
+ -R ___ksymtab+sort -R ___kcrctab+sort
STUBCOPY_RELOC-$(CONFIG_ARM) := R_ARM_ABS
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 26ee00f..d011cb8 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -284,7 +284,7 @@
config GPIO_MOCKUP
tristate "GPIO Testing Driver"
- depends on GPIOLIB
+ depends on GPIOLIB && SYSFS
select GPIO_SYSFS
help
This enables GPIO Testing driver, which provides a way to test GPIO
diff --git a/drivers/gpio/gpio-ath79.c b/drivers/gpio/gpio-ath79.c
index 9457e20..dc37dbe 100644
--- a/drivers/gpio/gpio-ath79.c
+++ b/drivers/gpio/gpio-ath79.c
@@ -219,6 +219,7 @@
{ .compatible = "qca,ar9340-gpio" },
{},
};
+MODULE_DEVICE_TABLE(of, ath79_gpio_of_match);
static int ath79_gpio_probe(struct platform_device *pdev)
{
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 425501c..793518a 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -239,7 +239,7 @@
irq_hw_number_t hwirq)
{
irq_set_chip_data(irq, h->host_data);
- irq_set_chip_and_handler(irq, &mpc8xxx_irq_chip, handle_level_irq);
+ irq_set_chip_and_handler(irq, &mpc8xxx_irq_chip, handle_edge_irq);
return 0;
}
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index b9daa0b..ee17248 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -308,8 +308,10 @@
writel(~0U, port->base + PINCTRL_IRQSTAT(port) + MXS_CLR);
irq_base = irq_alloc_descs(-1, 0, 32, numa_node_id());
- if (irq_base < 0)
- return irq_base;
+ if (irq_base < 0) {
+ err = irq_base;
+ goto out_iounmap;
+ }
port->domain = irq_domain_add_legacy(np, 32, irq_base, 0,
&irq_domain_simple_ops, NULL);
@@ -349,6 +351,8 @@
irq_domain_remove(port->domain);
out_irqdesc_free:
irq_free_descs(irq_base, 32);
+out_iounmap:
+ iounmap(port->base);
return err;
}
diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c
index e7d422a..5b00427 100644
--- a/drivers/gpio/gpio-stmpe.c
+++ b/drivers/gpio/gpio-stmpe.c
@@ -409,7 +409,7 @@
* 801/1801/1600, bits are cleared when read.
* Edge detect register is not present on 801/1600/1801
*/
- if (stmpe->partnum != STMPE801 || stmpe->partnum != STMPE1600 ||
+ if (stmpe->partnum != STMPE801 && stmpe->partnum != STMPE1600 &&
stmpe->partnum != STMPE1801) {
stmpe_reg_write(stmpe, statmsbreg + i, status[i]);
stmpe_reg_write(stmpe,
diff --git a/drivers/gpio/gpio-ts4800.c b/drivers/gpio/gpio-ts4800.c
index 9925611..c2a80b4 100644
--- a/drivers/gpio/gpio-ts4800.c
+++ b/drivers/gpio/gpio-ts4800.c
@@ -66,6 +66,7 @@
{ .compatible = "technologic,ts4800-gpio", },
{},
};
+MODULE_DEVICE_TABLE(of, ts4800_gpio_of_match);
static struct platform_driver ts4800_gpio_driver = {
.driver = {
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 58ece20..72a4b32 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -653,14 +653,17 @@
{
int idx, i;
unsigned int irq_flags;
+ int ret = -ENOENT;
for (i = 0, idx = 0; idx <= index; i++) {
struct acpi_gpio_info info;
struct gpio_desc *desc;
desc = acpi_get_gpiod_by_index(adev, NULL, i, &info);
- if (IS_ERR(desc))
+ if (IS_ERR(desc)) {
+ ret = PTR_ERR(desc);
break;
+ }
if (info.gpioint && idx++ == index) {
int irq = gpiod_to_irq(desc);
@@ -679,7 +682,7 @@
}
}
- return -ENOENT;
+ return ret;
}
EXPORT_SYMBOL_GPL(acpi_dev_gpio_irq_get);
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index f0fc3a0..20e09b7c 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -333,6 +333,13 @@
u32 numdescs;
};
+#define GPIOHANDLE_REQUEST_VALID_FLAGS \
+ (GPIOHANDLE_REQUEST_INPUT | \
+ GPIOHANDLE_REQUEST_OUTPUT | \
+ GPIOHANDLE_REQUEST_ACTIVE_LOW | \
+ GPIOHANDLE_REQUEST_OPEN_DRAIN | \
+ GPIOHANDLE_REQUEST_OPEN_SOURCE)
+
static long linehandle_ioctl(struct file *filep, unsigned int cmd,
unsigned long arg)
{
@@ -344,6 +351,8 @@
if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) {
int val;
+ memset(&ghd, 0, sizeof(ghd));
+
/* TODO: check if descriptors are really input */
for (i = 0; i < lh->numdescs; i++) {
val = gpiod_get_value_cansleep(lh->descs[i]);
@@ -444,6 +453,17 @@
u32 lflags = handlereq.flags;
struct gpio_desc *desc;
+ if (offset >= gdev->ngpio) {
+ ret = -EINVAL;
+ goto out_free_descs;
+ }
+
+ /* Return an error if a unknown flag is set */
+ if (lflags & ~GPIOHANDLE_REQUEST_VALID_FLAGS) {
+ ret = -EINVAL;
+ goto out_free_descs;
+ }
+
desc = &gdev->descs[offset];
ret = gpiod_request(desc, lh->label);
if (ret)
@@ -536,6 +556,10 @@
struct mutex read_lock;
};
+#define GPIOEVENT_REQUEST_VALID_FLAGS \
+ (GPIOEVENT_REQUEST_RISING_EDGE | \
+ GPIOEVENT_REQUEST_FALLING_EDGE)
+
static unsigned int lineevent_poll(struct file *filep,
struct poll_table_struct *wait)
{
@@ -623,6 +647,8 @@
if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) {
int val;
+ memset(&ghd, 0, sizeof(ghd));
+
val = gpiod_get_value_cansleep(le->desc);
if (val < 0)
return val;
@@ -726,6 +752,18 @@
lflags = eventreq.handleflags;
eflags = eventreq.eventflags;
+ if (offset >= gdev->ngpio) {
+ ret = -EINVAL;
+ goto out_free_label;
+ }
+
+ /* Return an error if a unknown flag is set */
+ if ((lflags & ~GPIOHANDLE_REQUEST_VALID_FLAGS) ||
+ (eflags & ~GPIOEVENT_REQUEST_VALID_FLAGS)) {
+ ret = -EINVAL;
+ goto out_free_label;
+ }
+
/* This is just wrong: we don't look for events on output lines */
if (lflags & GPIOHANDLE_REQUEST_OUTPUT) {
ret = -EINVAL;
@@ -823,6 +861,8 @@
if (cmd == GPIO_GET_CHIPINFO_IOCTL) {
struct gpiochip_info chipinfo;
+ memset(&chipinfo, 0, sizeof(chipinfo));
+
strncpy(chipinfo.name, dev_name(&gdev->dev),
sizeof(chipinfo.name));
chipinfo.name[sizeof(chipinfo.name)-1] = '\0';
@@ -839,7 +879,7 @@
if (copy_from_user(&lineinfo, ip, sizeof(lineinfo)))
return -EFAULT;
- if (lineinfo.line_offset > gdev->ngpio)
+ if (lineinfo.line_offset >= gdev->ngpio)
return -EINVAL;
desc = &gdev->descs[lineinfo.line_offset];
diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c
index 98114ce..2fe1828 100644
--- a/drivers/hwmon/adm9240.c
+++ b/drivers/hwmon/adm9240.c
@@ -194,10 +194,10 @@
* 0.5'C per two measurement cycles thus ignore possible
* but unlikely aliasing error on lsb reading. --Grant
*/
- data->temp = ((i2c_smbus_read_byte_data(client,
+ data->temp = (i2c_smbus_read_byte_data(client,
ADM9240_REG_TEMP) << 8) |
i2c_smbus_read_byte_data(client,
- ADM9240_REG_TEMP_CONF)) / 128;
+ ADM9240_REG_TEMP_CONF);
for (i = 0; i < 2; i++) { /* read fans */
data->fan[i] = i2c_smbus_read_byte_data(client,
@@ -263,7 +263,7 @@
char *buf)
{
struct adm9240_data *data = adm9240_update_device(dev);
- return sprintf(buf, "%d\n", data->temp * 500); /* 9-bit value */
+ return sprintf(buf, "%d\n", data->temp / 128 * 500); /* 9-bit value */
}
static ssize_t show_max(struct device *dev, struct device_attribute *devattr,
diff --git a/drivers/hwmon/max31790.c b/drivers/hwmon/max31790.c
index bef84e0..c1b9275 100644
--- a/drivers/hwmon/max31790.c
+++ b/drivers/hwmon/max31790.c
@@ -268,11 +268,13 @@
long *val)
{
struct max31790_data *data = max31790_update_device(dev);
- u8 fan_config = data->fan_config[channel];
+ u8 fan_config;
if (IS_ERR(data))
return PTR_ERR(data);
+ fan_config = data->fan_config[channel];
+
switch (attr) {
case hwmon_pwm_input:
*val = data->pwm[channel] >> 8;
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 82b0b5d..bc0af33 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -158,8 +158,8 @@
select IRQ_DOMAIN
config JCORE_AIC
- bool "J-Core integrated AIC"
- depends on OF && (SUPERH || COMPILE_TEST)
+ bool "J-Core integrated AIC" if COMPILE_TEST
+ depends on OF
select IRQ_DOMAIN
help
Support for the J-Core integrated AIC.
diff --git a/drivers/irqchip/irq-eznps.c b/drivers/irqchip/irq-eznps.c
index ebc2b0b..2a7a388 100644
--- a/drivers/irqchip/irq-eznps.c
+++ b/drivers/irqchip/irq-eznps.c
@@ -135,7 +135,7 @@
static int __init nps400_of_init(struct device_node *node,
struct device_node *parent)
{
- static struct irq_domain *nps400_root_domain;
+ struct irq_domain *nps400_root_domain;
if (parent) {
pr_err("DeviceTree incore ic not a root irq controller\n");
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 003495d..c5dee30 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1023,7 +1023,7 @@
static int its_alloc_tables(struct its_node *its)
{
- u64 typer = readq_relaxed(its->base + GITS_TYPER);
+ u64 typer = gic_read_typer(its->base + GITS_TYPER);
u32 ids = GITS_TYPER_DEVBITS(typer);
u64 shr = GITS_BASER_InnerShareable;
u64 cache = GITS_BASER_WaWb;
@@ -1198,7 +1198,7 @@
* We now have to bind each collection to its target
* redistributor.
*/
- if (readq_relaxed(its->base + GITS_TYPER) & GITS_TYPER_PTA) {
+ if (gic_read_typer(its->base + GITS_TYPER) & GITS_TYPER_PTA) {
/*
* This ITS wants the physical address of the
* redistributor.
@@ -1208,7 +1208,7 @@
/*
* This ITS wants a linear CPU number.
*/
- target = readq_relaxed(gic_data_rdist_rd_base() + GICR_TYPER);
+ target = gic_read_typer(gic_data_rdist_rd_base() + GICR_TYPER);
target = GICR_TYPER_CPU_NUMBER(target) << 16;
}
@@ -1691,7 +1691,7 @@
INIT_LIST_HEAD(&its->its_device_list);
its->base = its_base;
its->phys_base = res->start;
- its->ite_size = ((readl_relaxed(its_base + GITS_TYPER) >> 4) & 0xf) + 1;
+ its->ite_size = ((gic_read_typer(its_base + GITS_TYPER) >> 4) & 0xf) + 1;
its->numa_node = numa_node;
its->cmd_base = kzalloc(ITS_CMD_QUEUE_SZ, GFP_KERNEL);
@@ -1763,7 +1763,7 @@
static bool gic_rdists_supports_plpis(void)
{
- return !!(readl_relaxed(gic_data_rdist_rd_base() + GICR_TYPER) & GICR_TYPER_PLPIS);
+ return !!(gic_read_typer(gic_data_rdist_rd_base() + GICR_TYPER) & GICR_TYPER_PLPIS);
}
int its_cpu_init(void)
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 58e5b4e..d6c404b 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -1279,7 +1279,7 @@
*/
*base += 0xf000;
cpuif_res.start += 0xf000;
- pr_warn("GIC: Adjusting CPU interface base to %pa",
+ pr_warn("GIC: Adjusting CPU interface base to %pa\n",
&cpuif_res.start);
}
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c
index f3d34b9..af23d7d 100644
--- a/drivers/misc/cxl/api.c
+++ b/drivers/misc/cxl/api.c
@@ -229,6 +229,14 @@
if (ctx->status == STARTED)
goto out; /* already started */
+ /*
+ * Increment the mapped context count for adapter. This also checks
+ * if adapter_context_lock is taken.
+ */
+ rc = cxl_adapter_context_get(ctx->afu->adapter);
+ if (rc)
+ goto out;
+
if (task) {
ctx->pid = get_task_pid(task, PIDTYPE_PID);
ctx->glpid = get_task_pid(task->group_leader, PIDTYPE_PID);
@@ -240,6 +248,7 @@
if ((rc = cxl_ops->attach_process(ctx, kernel, wed, 0))) {
put_pid(ctx->pid);
+ cxl_adapter_context_put(ctx->afu->adapter);
cxl_ctx_put();
goto out;
}
diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c
index c466ee2..5e506c1 100644
--- a/drivers/misc/cxl/context.c
+++ b/drivers/misc/cxl/context.c
@@ -238,6 +238,9 @@
put_pid(ctx->glpid);
cxl_ctx_put();
+
+ /* Decrease the attached context count on the adapter */
+ cxl_adapter_context_put(ctx->afu->adapter);
return 0;
}
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h
index 01d372a..a144073 100644
--- a/drivers/misc/cxl/cxl.h
+++ b/drivers/misc/cxl/cxl.h
@@ -618,6 +618,14 @@
bool perst_select_user;
bool perst_same_image;
bool psl_timebase_synced;
+
+ /*
+ * number of contexts mapped on to this card. Possible values are:
+ * >0: Number of contexts mapped and new one can be mapped.
+ * 0: No active contexts and new ones can be mapped.
+ * -1: No contexts mapped and new ones cannot be mapped.
+ */
+ atomic_t contexts_num;
};
int cxl_pci_alloc_one_irq(struct cxl *adapter);
@@ -944,4 +952,20 @@
/* decode AFU error bits in the PSL register PSL_SERR_An */
void cxl_afu_decode_psl_serr(struct cxl_afu *afu, u64 serr);
+
+/*
+ * Increments the number of attached contexts on an adapter.
+ * In case an adapter_context_lock is taken the return -EBUSY.
+ */
+int cxl_adapter_context_get(struct cxl *adapter);
+
+/* Decrements the number of attached contexts on an adapter */
+void cxl_adapter_context_put(struct cxl *adapter);
+
+/* If no active contexts then prevents contexts from being attached */
+int cxl_adapter_context_lock(struct cxl *adapter);
+
+/* Unlock the contexts-lock if taken. Warn and force unlock otherwise */
+void cxl_adapter_context_unlock(struct cxl *adapter);
+
#endif
diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c
index 5fb9894..d0b421f 100644
--- a/drivers/misc/cxl/file.c
+++ b/drivers/misc/cxl/file.c
@@ -205,11 +205,22 @@
ctx->pid = get_task_pid(current, PIDTYPE_PID);
ctx->glpid = get_task_pid(current->group_leader, PIDTYPE_PID);
+ /*
+ * Increment the mapped context count for adapter. This also checks
+ * if adapter_context_lock is taken.
+ */
+ rc = cxl_adapter_context_get(ctx->afu->adapter);
+ if (rc) {
+ afu_release_irqs(ctx, ctx);
+ goto out;
+ }
+
trace_cxl_attach(ctx, work.work_element_descriptor, work.num_interrupts, amr);
if ((rc = cxl_ops->attach_process(ctx, false, work.work_element_descriptor,
amr))) {
afu_release_irqs(ctx, ctx);
+ cxl_adapter_context_put(ctx->afu->adapter);
goto out;
}
diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c
index 9aa58a7..3e102cd 100644
--- a/drivers/misc/cxl/guest.c
+++ b/drivers/misc/cxl/guest.c
@@ -1152,6 +1152,9 @@
if ((rc = cxl_sysfs_adapter_add(adapter)))
goto err_put1;
+ /* release the context lock as the adapter is configured */
+ cxl_adapter_context_unlock(adapter);
+
return adapter;
err_put1:
diff --git a/drivers/misc/cxl/main.c b/drivers/misc/cxl/main.c
index d9be23b2..62e0dfb 100644
--- a/drivers/misc/cxl/main.c
+++ b/drivers/misc/cxl/main.c
@@ -243,8 +243,10 @@
if (dev_set_name(&adapter->dev, "card%i", adapter->adapter_num))
goto err2;
- return adapter;
+ /* start with context lock taken */
+ atomic_set(&adapter->contexts_num, -1);
+ return adapter;
err2:
cxl_remove_adapter_nr(adapter);
err1:
@@ -286,6 +288,44 @@
return 0;
}
+int cxl_adapter_context_get(struct cxl *adapter)
+{
+ int rc;
+
+ rc = atomic_inc_unless_negative(&adapter->contexts_num);
+ return rc >= 0 ? 0 : -EBUSY;
+}
+
+void cxl_adapter_context_put(struct cxl *adapter)
+{
+ atomic_dec_if_positive(&adapter->contexts_num);
+}
+
+int cxl_adapter_context_lock(struct cxl *adapter)
+{
+ int rc;
+ /* no active contexts -> contexts_num == 0 */
+ rc = atomic_cmpxchg(&adapter->contexts_num, 0, -1);
+ return rc ? -EBUSY : 0;
+}
+
+void cxl_adapter_context_unlock(struct cxl *adapter)
+{
+ int val = atomic_cmpxchg(&adapter->contexts_num, -1, 0);
+
+ /*
+ * contexts lock taken -> contexts_num == -1
+ * If not true then show a warning and force reset the lock.
+ * This will happen when context_unlock was requested without
+ * doing a context_lock.
+ */
+ if (val != -1) {
+ atomic_set(&adapter->contexts_num, 0);
+ WARN(1, "Adapter context unlocked with %d active contexts",
+ val);
+ }
+}
+
static int __init init_cxl(void)
{
int rc = 0;
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index 7afad84..e96be9c 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1487,6 +1487,8 @@
if ((rc = cxl_native_register_psl_err_irq(adapter)))
goto err;
+ /* Release the context lock as adapter is configured */
+ cxl_adapter_context_unlock(adapter);
return 0;
err:
diff --git a/drivers/misc/cxl/sysfs.c b/drivers/misc/cxl/sysfs.c
index b043c20..a8b6d6a 100644
--- a/drivers/misc/cxl/sysfs.c
+++ b/drivers/misc/cxl/sysfs.c
@@ -75,12 +75,31 @@
int val;
rc = sscanf(buf, "%i", &val);
- if ((rc != 1) || (val != 1))
+ if ((rc != 1) || (val != 1 && val != -1))
return -EINVAL;
- if ((rc = cxl_ops->adapter_reset(adapter)))
- return rc;
- return count;
+ /*
+ * See if we can lock the context mapping that's only allowed
+ * when there are no contexts attached to the adapter. Once
+ * taken this will also prevent any context from getting activated.
+ */
+ if (val == 1) {
+ rc = cxl_adapter_context_lock(adapter);
+ if (rc)
+ goto out;
+
+ rc = cxl_ops->adapter_reset(adapter);
+ /* In case reset failed release context lock */
+ if (rc)
+ cxl_adapter_context_unlock(adapter);
+
+ } else if (val == -1) {
+ /* Perform a forced adapter reset */
+ rc = cxl_ops->adapter_reset(adapter);
+ }
+
+out:
+ return rc ? rc : count;
}
static ssize_t load_image_on_perst_show(struct device *device,
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index 95c4048..388e46b 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -741,6 +741,7 @@
goto out_put;
}
+ vid_hdr = ubi_get_vid_hdr(vidb);
ubi_assert(vid_hdr->vol_type == UBI_VID_DYNAMIC);
mutex_lock(&ubi->buf_mutex);
diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index d6384d9..2ff6215 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -287,7 +287,7 @@
/* new_aeb is newer */
if (cmp_res & 1) {
- victim = ubi_alloc_aeb(ai, aeb->ec, aeb->pnum);
+ victim = ubi_alloc_aeb(ai, aeb->pnum, aeb->ec);
if (!victim)
return -ENOMEM;
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 39b928c..b7d747e 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1804,6 +1804,10 @@
* Otherwise, initiator is not expecting a NOPIN is response.
* Just ignore for now.
*/
+
+ if (cmd)
+ iscsit_free_cmd(cmd, false);
+
return 0;
}
EXPORT_SYMBOL(iscsit_process_nop_out);
@@ -2982,7 +2986,7 @@
pr_debug("Built NOPIN %s Response ITT: 0x%08x, TTT: 0x%08x,"
" StatSN: 0x%08x, Length %u\n", (nopout_response) ?
- "Solicitied" : "Unsolicitied", cmd->init_task_tag,
+ "Solicited" : "Unsolicited", cmd->init_task_tag,
cmd->targ_xfer_tag, cmd->stat_sn, cmd->buf_ptr_size);
}
EXPORT_SYMBOL(iscsit_build_nopin_rsp);
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index adf419f..15f79a2 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -434,7 +434,7 @@
/*
* Make MaxRecvDataSegmentLength PAGE_SIZE aligned for
- * Immediate Data + Unsolicitied Data-OUT if necessary..
+ * Immediate Data + Unsolicited Data-OUT if necessary..
*/
param = iscsi_find_param_from_key("MaxRecvDataSegmentLength",
conn->param_list);
@@ -646,7 +646,7 @@
{
struct iscsi_session *sess = conn->sess;
/*
- * FIXME: Unsolicitied NopIN support for ISER
+ * FIXME: Unsolicited NopIN support for ISER
*/
if (conn->conn_transport->transport_type == ISCSI_INFINIBAND)
return;
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 6094a6b..7dfefd6 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -754,15 +754,7 @@
void target_complete_cmd_with_length(struct se_cmd *cmd, u8 scsi_status, int length)
{
- if (scsi_status != SAM_STAT_GOOD) {
- return;
- }
-
- /*
- * Calculate new residual count based upon length of SCSI data
- * transferred.
- */
- if (length < cmd->data_length) {
+ if (scsi_status == SAM_STAT_GOOD && length < cmd->data_length) {
if (cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
cmd->residual_count += cmd->data_length - length;
} else {
@@ -771,12 +763,6 @@
}
cmd->data_length = length;
- } else if (length > cmd->data_length) {
- cmd->se_cmd_flags |= SCF_OVERFLOW_BIT;
- cmd->residual_count = length - cmd->data_length;
- } else {
- cmd->se_cmd_flags &= ~(SCF_OVERFLOW_BIT | SCF_UNDERFLOW_BIT);
- cmd->residual_count = 0;
}
target_complete_cmd(cmd, scsi_status);
@@ -1706,6 +1692,7 @@
case TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED:
case TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED:
case TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED:
+ case TCM_COPY_TARGET_DEVICE_NOT_REACHABLE:
break;
case TCM_OUT_OF_RESOURCES:
sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
@@ -2547,8 +2534,12 @@
* fabric acknowledgement that requires two target_put_sess_cmd()
* invocations before se_cmd descriptor release.
*/
- if (ack_kref)
- kref_get(&se_cmd->cmd_kref);
+ if (ack_kref) {
+ if (!kref_get_unless_zero(&se_cmd->cmd_kref))
+ return -EINVAL;
+
+ se_cmd->se_cmd_flags |= SCF_ACK_KREF;
+ }
spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
if (se_sess->sess_tearing_down) {
@@ -2627,7 +2618,7 @@
*/
void target_sess_cmd_list_set_waiting(struct se_session *se_sess)
{
- struct se_cmd *se_cmd;
+ struct se_cmd *se_cmd, *tmp_cmd;
unsigned long flags;
int rc;
@@ -2639,14 +2630,16 @@
se_sess->sess_tearing_down = 1;
list_splice_init(&se_sess->sess_cmd_list, &se_sess->sess_wait_list);
- list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list) {
+ list_for_each_entry_safe(se_cmd, tmp_cmd,
+ &se_sess->sess_wait_list, se_cmd_list) {
rc = kref_get_unless_zero(&se_cmd->cmd_kref);
if (rc) {
se_cmd->cmd_wait_set = 1;
spin_lock(&se_cmd->t_state_lock);
se_cmd->transport_state |= CMD_T_FABRIC_STOP;
spin_unlock(&se_cmd->t_state_lock);
- }
+ } else
+ list_del_init(&se_cmd->se_cmd_list);
}
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
@@ -2871,6 +2864,12 @@
.ascq = 0x03, /* LOGICAL BLOCK REFERENCE TAG CHECK FAILED */
.add_sector_info = true,
},
+ [TCM_COPY_TARGET_DEVICE_NOT_REACHABLE] = {
+ .key = COPY_ABORTED,
+ .asc = 0x0d,
+ .ascq = 0x02, /* COPY TARGET DEVICE NOT REACHABLE */
+
+ },
[TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE] = {
/*
* Returning ILLEGAL REQUEST would cause immediate IO errors on
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 62bf4fe..4756250 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -96,7 +96,7 @@
size_t dev_size;
u32 cmdr_size;
u32 cmdr_last_cleaned;
- /* Offset of data ring from start of mb */
+ /* Offset of data area from start of mb */
/* Must add data_off and mb_addr to get the address */
size_t data_off;
size_t data_size;
@@ -349,7 +349,7 @@
/*
* We can't queue a command until we have space available on the cmd ring *and*
- * space available on the data ring.
+ * space available on the data area.
*
* Called with ring lock held.
*/
@@ -389,7 +389,8 @@
return true;
}
-static int tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
+static sense_reason_t
+tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
{
struct tcmu_dev *udev = tcmu_cmd->tcmu_dev;
struct se_cmd *se_cmd = tcmu_cmd->se_cmd;
@@ -405,7 +406,7 @@
DECLARE_BITMAP(old_bitmap, DATA_BLOCK_BITS);
if (test_bit(TCMU_DEV_BIT_BROKEN, &udev->flags))
- return -EINVAL;
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
/*
* Must be a certain minimum size for response sense info, but
@@ -432,11 +433,14 @@
BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents));
data_length += se_cmd->t_bidi_data_sg->length;
}
- if ((command_size > (udev->cmdr_size / 2))
- || data_length > udev->data_size)
- pr_warn("TCMU: Request of size %zu/%zu may be too big for %u/%zu "
- "cmd/data ring buffers\n", command_size, data_length,
+ if ((command_size > (udev->cmdr_size / 2)) ||
+ data_length > udev->data_size) {
+ pr_warn("TCMU: Request of size %zu/%zu is too big for %u/%zu "
+ "cmd ring/data area\n", command_size, data_length,
udev->cmdr_size, udev->data_size);
+ spin_unlock_irq(&udev->cmdr_lock);
+ return TCM_INVALID_CDB_FIELD;
+ }
while (!is_ring_space_avail(udev, command_size, data_length)) {
int ret;
@@ -450,7 +454,7 @@
finish_wait(&udev->wait_cmdr, &__wait);
if (!ret) {
pr_warn("tcmu: command timed out\n");
- return -ETIMEDOUT;
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
spin_lock_irq(&udev->cmdr_lock);
@@ -487,9 +491,7 @@
bitmap_copy(old_bitmap, udev->data_bitmap, DATA_BLOCK_BITS);
- /*
- * Fix up iovecs, and handle if allocation in data ring wrapped.
- */
+ /* Handle allocating space from the data area */
iov = &entry->req.iov[0];
iov_cnt = 0;
copy_to_data_area = (se_cmd->data_direction == DMA_TO_DEVICE
@@ -526,10 +528,11 @@
mod_timer(&udev->timeout,
round_jiffies_up(jiffies + msecs_to_jiffies(TCMU_TIME_OUT)));
- return 0;
+ return TCM_NO_SENSE;
}
-static int tcmu_queue_cmd(struct se_cmd *se_cmd)
+static sense_reason_t
+tcmu_queue_cmd(struct se_cmd *se_cmd)
{
struct se_device *se_dev = se_cmd->se_dev;
struct tcmu_dev *udev = TCMU_DEV(se_dev);
@@ -538,10 +541,10 @@
tcmu_cmd = tcmu_alloc_cmd(se_cmd);
if (!tcmu_cmd)
- return -ENOMEM;
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
ret = tcmu_queue_cmd_ring(tcmu_cmd);
- if (ret < 0) {
+ if (ret != TCM_NO_SENSE) {
pr_err("TCMU: Could not queue command\n");
spin_lock_irq(&udev->commands_lock);
idr_remove(&udev->commands, tcmu_cmd->cmd_id);
@@ -561,7 +564,7 @@
if (test_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags)) {
/*
* cmd has been completed already from timeout, just reclaim
- * data ring space and free cmd
+ * data area space and free cmd
*/
free_data_area(udev, cmd);
@@ -1129,20 +1132,9 @@
}
static sense_reason_t
-tcmu_pass_op(struct se_cmd *se_cmd)
-{
- int ret = tcmu_queue_cmd(se_cmd);
-
- if (ret != 0)
- return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- else
- return TCM_NO_SENSE;
-}
-
-static sense_reason_t
tcmu_parse_cdb(struct se_cmd *cmd)
{
- return passthrough_parse_cdb(cmd, tcmu_pass_op);
+ return passthrough_parse_cdb(cmd, tcmu_queue_cmd);
}
static const struct target_backend_ops tcmu_ops = {
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 75cd854..094a144 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -104,7 +104,7 @@
}
mutex_unlock(&g_device_mutex);
- pr_err("Unable to locate 0xe4 descriptor for EXTENDED_COPY\n");
+ pr_debug_ratelimited("Unable to locate 0xe4 descriptor for EXTENDED_COPY\n");
return -EINVAL;
}
@@ -185,7 +185,7 @@
static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd,
struct xcopy_op *xop, unsigned char *p,
- unsigned short tdll)
+ unsigned short tdll, sense_reason_t *sense_ret)
{
struct se_device *local_dev = se_cmd->se_dev;
unsigned char *desc = p;
@@ -193,6 +193,8 @@
unsigned short start = 0;
bool src = true;
+ *sense_ret = TCM_INVALID_PARAMETER_LIST;
+
if (offset != 0) {
pr_err("XCOPY target descriptor list length is not"
" multiple of %d\n", XCOPY_TARGET_DESC_LEN);
@@ -243,9 +245,16 @@
rc = target_xcopy_locate_se_dev_e4(se_cmd, xop, true);
else
rc = target_xcopy_locate_se_dev_e4(se_cmd, xop, false);
-
- if (rc < 0)
+ /*
+ * If a matching IEEE NAA 0x83 descriptor for the requested device
+ * is not located on this node, return COPY_ABORTED with ASQ/ASQC
+ * 0x0d/0x02 - COPY_TARGET_DEVICE_NOT_REACHABLE to request the
+ * initiator to fall back to normal copy method.
+ */
+ if (rc < 0) {
+ *sense_ret = TCM_COPY_TARGET_DEVICE_NOT_REACHABLE;
goto out;
+ }
pr_debug("XCOPY TGT desc: Source dev: %p NAA IEEE WWN: 0x%16phN\n",
xop->src_dev, &xop->src_tid_wwn[0]);
@@ -653,6 +662,7 @@
rc = target_xcopy_setup_pt_cmd(xpt_cmd, xop, src_dev, &cdb[0],
remote_port, true);
if (rc < 0) {
+ ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status;
transport_generic_free_cmd(se_cmd, 0);
return rc;
}
@@ -664,6 +674,7 @@
rc = target_xcopy_issue_pt_cmd(xpt_cmd);
if (rc < 0) {
+ ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status;
transport_generic_free_cmd(se_cmd, 0);
return rc;
}
@@ -714,6 +725,7 @@
remote_port, false);
if (rc < 0) {
struct se_cmd *src_cmd = &xop->src_pt_cmd->se_cmd;
+ ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status;
/*
* If the failure happened before the t_mem_list hand-off in
* target_xcopy_setup_pt_cmd(), Reset memory + clear flag so that
@@ -729,6 +741,7 @@
rc = target_xcopy_issue_pt_cmd(xpt_cmd);
if (rc < 0) {
+ ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status;
se_cmd->se_cmd_flags &= ~SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC;
transport_generic_free_cmd(se_cmd, 0);
return rc;
@@ -815,9 +828,14 @@
out:
xcopy_pt_undepend_remotedev(xop);
kfree(xop);
-
- pr_warn("target_xcopy_do_work: Setting X-COPY CHECK_CONDITION -> sending response\n");
- ec_cmd->scsi_status = SAM_STAT_CHECK_CONDITION;
+ /*
+ * Don't override an error scsi status if it has already been set
+ */
+ if (ec_cmd->scsi_status == SAM_STAT_GOOD) {
+ pr_warn_ratelimited("target_xcopy_do_work: rc: %d, Setting X-COPY"
+ " CHECK_CONDITION -> sending response\n", rc);
+ ec_cmd->scsi_status = SAM_STAT_CHECK_CONDITION;
+ }
target_complete_cmd(ec_cmd, SAM_STAT_CHECK_CONDITION);
}
@@ -875,7 +893,7 @@
" tdll: %hu sdll: %u inline_dl: %u\n", list_id, list_id_usage,
tdll, sdll, inline_dl);
- rc = target_xcopy_parse_target_descriptors(se_cmd, xop, &p[16], tdll);
+ rc = target_xcopy_parse_target_descriptors(se_cmd, xop, &p[16], tdll, &ret);
if (rc <= 0)
goto out;
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index 216e18c..ff5de9a 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -572,10 +572,10 @@
if (target_submit_cmd(&cmd->se_cmd, cmd->sess->se_sess, fcp->fc_cdb,
&cmd->ft_sense_buffer[0], scsilun_to_int(&fcp->fc_lun),
ntohl(fcp->fc_dl), task_attr, data_dir,
- TARGET_SCF_ACK_KREF))
+ TARGET_SCF_ACK_KREF | TARGET_SCF_USE_CPUID))
goto err;
- pr_debug("r_ctl %x alloc target_submit_cmd\n", fh->fh_r_ctl);
+ pr_debug("r_ctl %x target_submit_cmd %p\n", fh->fh_r_ctl, cmd);
return;
err:
diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c
index 6ffbb60..fd5c3de 100644
--- a/drivers/target/tcm_fc/tfc_sess.c
+++ b/drivers/target/tcm_fc/tfc_sess.c
@@ -39,6 +39,11 @@
#include "tcm_fc.h"
+#define TFC_SESS_DBG(lport, fmt, args...) \
+ pr_debug("host%u: rport %6.6x: " fmt, \
+ (lport)->host->host_no, \
+ (lport)->port_id, ##args )
+
static void ft_sess_delete_all(struct ft_tport *);
/*
@@ -167,24 +172,29 @@
struct ft_tport *tport;
struct hlist_head *head;
struct ft_sess *sess;
+ char *reason = "no session created";
rcu_read_lock();
tport = rcu_dereference(lport->prov[FC_TYPE_FCP]);
- if (!tport)
+ if (!tport) {
+ reason = "not an FCP port";
goto out;
+ }
head = &tport->hash[ft_sess_hash(port_id)];
hlist_for_each_entry_rcu(sess, head, hash) {
if (sess->port_id == port_id) {
kref_get(&sess->kref);
rcu_read_unlock();
- pr_debug("port_id %x found %p\n", port_id, sess);
+ TFC_SESS_DBG(lport, "port_id %x found %p\n",
+ port_id, sess);
return sess;
}
}
out:
rcu_read_unlock();
- pr_debug("port_id %x not found\n", port_id);
+ TFC_SESS_DBG(lport, "port_id %x not found, %s\n",
+ port_id, reason);
return NULL;
}
@@ -195,7 +205,7 @@
struct ft_tport *tport = sess->tport;
struct hlist_head *head = &tport->hash[ft_sess_hash(sess->port_id)];
- pr_debug("port_id %x sess %p\n", sess->port_id, sess);
+ TFC_SESS_DBG(tport->lport, "port_id %x sess %p\n", sess->port_id, sess);
hlist_add_head_rcu(&sess->hash, head);
tport->sess_count++;
@@ -223,7 +233,7 @@
sess = kzalloc(sizeof(*sess), GFP_KERNEL);
if (!sess)
- return NULL;
+ return ERR_PTR(-ENOMEM);
kref_init(&sess->kref); /* ref for table entry */
sess->tport = tport;
@@ -234,8 +244,9 @@
TARGET_PROT_NORMAL, &initiatorname[0],
sess, ft_sess_alloc_cb);
if (IS_ERR(sess->se_sess)) {
+ int rc = PTR_ERR(sess->se_sess);
kfree(sess);
- return NULL;
+ sess = ERR_PTR(rc);
}
return sess;
}
@@ -319,7 +330,7 @@
mutex_unlock(&ft_lport_lock);
return;
}
- pr_debug("port_id %x\n", port_id);
+ TFC_SESS_DBG(sess->tport->lport, "port_id %x close session\n", port_id);
ft_sess_unhash(sess);
mutex_unlock(&ft_lport_lock);
ft_close_sess(sess);
@@ -379,8 +390,13 @@
if (!(fcp_parm & FCP_SPPF_INIT_FCN))
return FC_SPP_RESP_CONF;
sess = ft_sess_create(tport, rdata->ids.port_id, rdata);
- if (!sess)
- return FC_SPP_RESP_RES;
+ if (IS_ERR(sess)) {
+ if (PTR_ERR(sess) == -EACCES) {
+ spp->spp_flags &= ~FC_SPP_EST_IMG_PAIR;
+ return FC_SPP_RESP_CONF;
+ } else
+ return FC_SPP_RESP_RES;
+ }
if (!sess->params)
rdata->prli_count++;
sess->params = fcp_parm;
@@ -423,8 +439,8 @@
mutex_lock(&ft_lport_lock);
ret = ft_prli_locked(rdata, spp_len, rspp, spp);
mutex_unlock(&ft_lport_lock);
- pr_debug("port_id %x flags %x ret %x\n",
- rdata->ids.port_id, rspp ? rspp->spp_flags : 0, ret);
+ TFC_SESS_DBG(rdata->local_port, "port_id %x flags %x ret %x\n",
+ rdata->ids.port_id, rspp ? rspp->spp_flags : 0, ret);
return ret;
}
@@ -477,11 +493,11 @@
struct ft_sess *sess;
u32 sid = fc_frame_sid(fp);
- pr_debug("sid %x\n", sid);
+ TFC_SESS_DBG(lport, "recv sid %x\n", sid);
sess = ft_sess_get(lport, sid);
if (!sess) {
- pr_debug("sid %x sess lookup failed\n", sid);
+ TFC_SESS_DBG(lport, "sid %x sess lookup failed\n", sid);
/* TBD XXX - if FCP_CMND, send PRLO */
fc_frame_free(fp);
return;
diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c
index e473e3b..6d1fbda 100644
--- a/drivers/watchdog/wdat_wdt.c
+++ b/drivers/watchdog/wdat_wdt.c
@@ -499,6 +499,10 @@
ret = wdat_wdt_enable_reboot(wdat);
if (ret)
return ret;
+
+ ret = wdat_wdt_ping(&wdat->wdd);
+ if (ret)
+ return ret;
}
return wdat_wdt_start(&wdat->wdd);
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index e12bd36..26e5e85 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -168,7 +168,9 @@
#endif /* CONFIG_HIBERNATE_CALLBACKS */
struct shutdown_handler {
- const char *command;
+#define SHUTDOWN_CMD_SIZE 11
+ const char command[SHUTDOWN_CMD_SIZE];
+ bool flag;
void (*cb)(void);
};
@@ -206,22 +208,22 @@
ctrl_alt_del();
}
+static struct shutdown_handler shutdown_handlers[] = {
+ { "poweroff", true, do_poweroff },
+ { "halt", false, do_poweroff },
+ { "reboot", true, do_reboot },
+#ifdef CONFIG_HIBERNATE_CALLBACKS
+ { "suspend", true, do_suspend },
+#endif
+};
+
static void shutdown_handler(struct xenbus_watch *watch,
const char **vec, unsigned int len)
{
char *str;
struct xenbus_transaction xbt;
int err;
- static struct shutdown_handler handlers[] = {
- { "poweroff", do_poweroff },
- { "halt", do_poweroff },
- { "reboot", do_reboot },
-#ifdef CONFIG_HIBERNATE_CALLBACKS
- { "suspend", do_suspend },
-#endif
- {NULL, NULL},
- };
- static struct shutdown_handler *handler;
+ int idx;
if (shutting_down != SHUTDOWN_INVALID)
return;
@@ -238,13 +240,13 @@
return;
}
- for (handler = &handlers[0]; handler->command; handler++) {
- if (strcmp(str, handler->command) == 0)
+ for (idx = 0; idx < ARRAY_SIZE(shutdown_handlers); idx++) {
+ if (strcmp(str, shutdown_handlers[idx].command) == 0)
break;
}
/* Only acknowledge commands which we are prepared to handle. */
- if (handler->cb)
+ if (idx < ARRAY_SIZE(shutdown_handlers))
xenbus_write(xbt, "control", "shutdown", "");
err = xenbus_transaction_end(xbt, 0);
@@ -253,8 +255,8 @@
goto again;
}
- if (handler->cb) {
- handler->cb();
+ if (idx < ARRAY_SIZE(shutdown_handlers)) {
+ shutdown_handlers[idx].cb();
} else {
pr_info("Ignoring shutdown request: %s\n", str);
shutting_down = SHUTDOWN_INVALID;
@@ -310,6 +312,9 @@
static int setup_shutdown_watcher(void)
{
int err;
+ int idx;
+#define FEATURE_PATH_SIZE (SHUTDOWN_CMD_SIZE + sizeof("feature-"))
+ char node[FEATURE_PATH_SIZE];
err = register_xenbus_watch(&shutdown_watch);
if (err) {
@@ -326,6 +331,14 @@
}
#endif
+ for (idx = 0; idx < ARRAY_SIZE(shutdown_handlers); idx++) {
+ if (!shutdown_handlers[idx].flag)
+ continue;
+ snprintf(node, FEATURE_PATH_SIZE, "feature-%s",
+ shutdown_handlers[idx].command);
+ xenbus_printf(XBT_NIL, "control", node, "%u", 1);
+ }
+
return 0;
}
diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c
index c1010f01..1e8be12 100644
--- a/drivers/xen/xenbus/xenbus_dev_frontend.c
+++ b/drivers/xen/xenbus/xenbus_dev_frontend.c
@@ -364,7 +364,7 @@
static int xenbus_write_watch(unsigned msg_type, struct xenbus_file_priv *u)
{
- struct watch_adapter *watch, *tmp_watch;
+ struct watch_adapter *watch;
char *path, *token;
int err, rc;
LIST_HEAD(staging_q);
@@ -399,7 +399,7 @@
}
list_add(&watch->list, &u->watches);
} else {
- list_for_each_entry_safe(watch, tmp_watch, &u->watches, list) {
+ list_for_each_entry(watch, &u->watches, list) {
if (!strcmp(watch->token, token) &&
!strcmp(watch->watch.node, path)) {
unregister_xenbus_watch(&watch->watch);
diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c
index 611a231..6d40a97 100644
--- a/drivers/xen/xenbus/xenbus_probe_frontend.c
+++ b/drivers/xen/xenbus/xenbus_probe_frontend.c
@@ -335,7 +335,9 @@
static void xenbus_reset_backend_state_changed(struct xenbus_watch *w,
const char **v, unsigned int l)
{
- xenbus_scanf(XBT_NIL, v[XS_WATCH_PATH], "", "%i", &backend_state);
+ if (xenbus_scanf(XBT_NIL, v[XS_WATCH_PATH], "", "%i",
+ &backend_state) != 1)
+ backend_state = XenbusStateUnknown;
printk(KERN_DEBUG "XENBUS: backend %s %s\n",
v[XS_WATCH_PATH], xenbus_strstate(backend_state));
wake_up(&backend_state_wq);
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c
index 61057b7d..98f87fe 100644
--- a/fs/crypto/crypto.c
+++ b/fs/crypto/crypto.c
@@ -151,7 +151,10 @@
struct page *src_page, struct page *dest_page,
gfp_t gfp_flags)
{
- u8 xts_tweak[FS_XTS_TWEAK_SIZE];
+ struct {
+ __le64 index;
+ u8 padding[FS_XTS_TWEAK_SIZE - sizeof(__le64)];
+ } xts_tweak;
struct skcipher_request *req = NULL;
DECLARE_FS_COMPLETION_RESULT(ecr);
struct scatterlist dst, src;
@@ -171,17 +174,15 @@
req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
page_crypt_complete, &ecr);
- BUILD_BUG_ON(FS_XTS_TWEAK_SIZE < sizeof(index));
- memcpy(xts_tweak, &index, sizeof(index));
- memset(&xts_tweak[sizeof(index)], 0,
- FS_XTS_TWEAK_SIZE - sizeof(index));
+ BUILD_BUG_ON(sizeof(xts_tweak) != FS_XTS_TWEAK_SIZE);
+ xts_tweak.index = cpu_to_le64(index);
+ memset(xts_tweak.padding, 0, sizeof(xts_tweak.padding));
sg_init_table(&dst, 1);
sg_set_page(&dst, dest_page, PAGE_SIZE, 0);
sg_init_table(&src, 1);
sg_set_page(&src, src_page, PAGE_SIZE, 0);
- skcipher_request_set_crypt(req, &src, &dst, PAGE_SIZE,
- xts_tweak);
+ skcipher_request_set_crypt(req, &src, &dst, PAGE_SIZE, &xts_tweak);
if (rw == FS_DECRYPT)
res = crypto_skcipher_decrypt(req);
else
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index ed115ac..6865663 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -109,6 +109,8 @@
if (ret)
return ret;
+ inode_lock(inode);
+
if (!inode_has_encryption_context(inode)) {
if (!S_ISDIR(inode->i_mode))
ret = -EINVAL;
@@ -127,6 +129,8 @@
ret = -EINVAL;
}
+ inode_unlock(inode);
+
mnt_drop_write_file(filp);
return ret;
}
diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c
index 02ddec6..fdb1954 100644
--- a/fs/ext4/block_validity.c
+++ b/fs/ext4/block_validity.c
@@ -128,12 +128,12 @@
node = rb_first(&sbi->system_blks);
while (node) {
entry = rb_entry(node, struct ext4_system_zone, node);
- printk("%s%llu-%llu", first ? "" : ", ",
+ printk(KERN_CONT "%s%llu-%llu", first ? "" : ", ",
entry->start_blk, entry->start_blk + entry->count - 1);
first = 0;
node = rb_next(node);
}
- printk("\n");
+ printk(KERN_CONT "\n");
}
int ext4_setup_system_zone(struct super_block *sb)
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index 3ef1df6..1aba469 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -27,16 +27,15 @@
#ifdef CONFIG_EXT4_DEBUG
extern ushort ext4_mballoc_debug;
-#define mb_debug(n, fmt, a...) \
- do { \
- if ((n) <= ext4_mballoc_debug) { \
- printk(KERN_DEBUG "(%s, %d): %s: ", \
- __FILE__, __LINE__, __func__); \
- printk(fmt, ## a); \
- } \
- } while (0)
+#define mb_debug(n, fmt, ...) \
+do { \
+ if ((n) <= ext4_mballoc_debug) { \
+ printk(KERN_DEBUG "(%s, %d): %s: " fmt, \
+ __FILE__, __LINE__, __func__, ##__VA_ARGS__); \
+ } \
+} while (0)
#else
-#define mb_debug(n, fmt, a...) no_printk(fmt, ## a)
+#define mb_debug(n, fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
#define EXT4_MB_HISTORY_ALLOC 1 /* allocation */
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index f92f10d..104f8bf 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -577,12 +577,13 @@
static void dx_show_index(char * label, struct dx_entry *entries)
{
int i, n = dx_get_count (entries);
- printk(KERN_DEBUG "%s index ", label);
+ printk(KERN_DEBUG "%s index", label);
for (i = 0; i < n; i++) {
- printk("%x->%lu ", i ? dx_get_hash(entries + i) :
- 0, (unsigned long)dx_get_block(entries + i));
+ printk(KERN_CONT " %x->%lu",
+ i ? dx_get_hash(entries + i) : 0,
+ (unsigned long)dx_get_block(entries + i));
}
- printk("\n");
+ printk(KERN_CONT "\n");
}
struct stats
@@ -679,7 +680,7 @@
}
de = ext4_next_entry(de, size);
}
- printk("(%i)\n", names);
+ printk(KERN_CONT "(%i)\n", names);
return (struct stats) { names, space, 1 };
}
@@ -798,7 +799,7 @@
q = entries + count - 1;
while (p <= q) {
m = p + (q - p) / 2;
- dxtrace(printk("."));
+ dxtrace(printk(KERN_CONT "."));
if (dx_get_hash(m) > hash)
q = m - 1;
else
@@ -810,7 +811,7 @@
at = entries;
while (n--)
{
- dxtrace(printk(","));
+ dxtrace(printk(KERN_CONT ","));
if (dx_get_hash(++at) > hash)
{
at--;
@@ -821,7 +822,8 @@
}
at = p - 1;
- dxtrace(printk(" %x->%u\n", at == entries ? 0 : dx_get_hash(at),
+ dxtrace(printk(KERN_CONT " %x->%u\n",
+ at == entries ? 0 : dx_get_hash(at),
dx_get_block(at)));
frame->entries = entries;
frame->at = at;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 6db81fb..20da99d 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -597,14 +597,15 @@
void __ext4_abort(struct super_block *sb, const char *function,
unsigned int line, const char *fmt, ...)
{
+ struct va_format vaf;
va_list args;
save_error_info(sb, function, line);
va_start(args, fmt);
- printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: ", sb->s_id,
- function, line);
- vprintk(fmt, args);
- printk("\n");
+ vaf.fmt = fmt;
+ vaf.va = &args;
+ printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: %pV\n",
+ sb->s_id, function, line, &vaf);
va_end(args);
if ((sb->s_flags & MS_RDONLY) == 0) {
@@ -2715,12 +2716,12 @@
es->s_first_error_func,
le32_to_cpu(es->s_first_error_line));
if (es->s_first_error_ino)
- printk(": inode %u",
+ printk(KERN_CONT ": inode %u",
le32_to_cpu(es->s_first_error_ino));
if (es->s_first_error_block)
- printk(": block %llu", (unsigned long long)
+ printk(KERN_CONT ": block %llu", (unsigned long long)
le64_to_cpu(es->s_first_error_block));
- printk("\n");
+ printk(KERN_CONT "\n");
}
if (es->s_last_error_time) {
printk(KERN_NOTICE "EXT4-fs (%s): last error at time %u: %.*s:%d",
@@ -2729,12 +2730,12 @@
es->s_last_error_func,
le32_to_cpu(es->s_last_error_line));
if (es->s_last_error_ino)
- printk(": inode %u",
+ printk(KERN_CONT ": inode %u",
le32_to_cpu(es->s_last_error_ino));
if (es->s_last_error_block)
- printk(": block %llu", (unsigned long long)
+ printk(KERN_CONT ": block %llu", (unsigned long long)
le64_to_cpu(es->s_last_error_block));
- printk("\n");
+ printk(KERN_CONT "\n");
}
mod_timer(&sbi->s_err_report, jiffies + 24*60*60*HZ); /* Once a day */
}
diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
index 73bcfd4..42145be 100644
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -223,14 +223,18 @@
EXT4_ATTR_FEATURE(lazy_itable_init);
EXT4_ATTR_FEATURE(batched_discard);
EXT4_ATTR_FEATURE(meta_bg_resize);
+#ifdef CONFIG_EXT4_FS_ENCRYPTION
EXT4_ATTR_FEATURE(encryption);
+#endif
EXT4_ATTR_FEATURE(metadata_csum_seed);
static struct attribute *ext4_feat_attrs[] = {
ATTR_LIST(lazy_itable_init),
ATTR_LIST(batched_discard),
ATTR_LIST(meta_bg_resize),
+#ifdef CONFIG_EXT4_FS_ENCRYPTION
ATTR_LIST(encryption),
+#endif
ATTR_LIST(metadata_csum_seed),
NULL,
};
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index c15d633..d77be9e 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -61,18 +61,12 @@
#include "acl.h"
#ifdef EXT4_XATTR_DEBUG
-# define ea_idebug(inode, f...) do { \
- printk(KERN_DEBUG "inode %s:%lu: ", \
- inode->i_sb->s_id, inode->i_ino); \
- printk(f); \
- printk("\n"); \
- } while (0)
-# define ea_bdebug(bh, f...) do { \
- printk(KERN_DEBUG "block %pg:%lu: ", \
- bh->b_bdev, (unsigned long) bh->b_blocknr); \
- printk(f); \
- printk("\n"); \
- } while (0)
+# define ea_idebug(inode, fmt, ...) \
+ printk(KERN_DEBUG "inode %s:%lu: " fmt "\n", \
+ inode->i_sb->s_id, inode->i_ino, ##__VA_ARGS__)
+# define ea_bdebug(bh, fmt, ...) \
+ printk(KERN_DEBUG "block %pg:%lu: " fmt "\n", \
+ bh->b_bdev, (unsigned long)bh->b_blocknr, ##__VA_ARGS__)
#else
# define ea_idebug(inode, fmt, ...) no_printk(fmt, ##__VA_ARGS__)
# define ea_bdebug(bh, fmt, ...) no_printk(fmt, ##__VA_ARGS__)
@@ -241,7 +235,7 @@
int error = -EFSCORRUPTED;
if (((void *) header >= end) ||
- (header->h_magic != le32_to_cpu(EXT4_XATTR_MAGIC)))
+ (header->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC)))
goto errout;
error = ext4_xattr_check_names(entry, end, entry);
errout:
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 3d8246a..e165266 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -1149,6 +1149,7 @@
JBUFFER_TRACE(jh, "file as BJ_Reserved");
spin_lock(&journal->j_list_lock);
__jbd2_journal_file_buffer(jh, transaction, BJ_Reserved);
+ spin_unlock(&journal->j_list_lock);
} else if (jh->b_transaction == journal->j_committing_transaction) {
/* first access by this transaction */
jh->b_modified = 0;
@@ -1156,8 +1157,8 @@
JBUFFER_TRACE(jh, "set next transaction");
spin_lock(&journal->j_list_lock);
jh->b_next_transaction = transaction;
+ spin_unlock(&journal->j_list_lock);
}
- spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);
/*
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index 2178476..2905479 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -344,9 +344,10 @@
u64 start = hdr->args.offset & (loff_t)PAGE_MASK;
u64 end = (hdr->args.offset + hdr->args.count +
PAGE_SIZE - 1) & (loff_t)PAGE_MASK;
+ u64 lwb = hdr->args.offset + hdr->args.count;
ext_tree_mark_written(bl, start >> SECTOR_SHIFT,
- (end - start) >> SECTOR_SHIFT, end);
+ (end - start) >> SECTOR_SHIFT, lwb);
}
pnfs_ld_write_done(hdr);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index ad917bd7..7897826 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1545,7 +1545,7 @@
struct nfs_client *clp = server->nfs_client;
struct nfs_inode *nfsi = NFS_I(state->inode);
struct nfs_delegation *deleg_cur;
- nfs4_stateid freeme = {0};
+ nfs4_stateid freeme = { };
int ret = 0;
fmode &= (FMODE_READ|FMODE_WRITE);
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 89600fd..81818ad 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -412,10 +412,11 @@
mm = get_task_mm(task);
if (mm) {
vsize = task_vsize(mm);
- if (permitted) {
- eip = KSTK_EIP(task);
- esp = KSTK_ESP(task);
- }
+ /*
+ * esp and eip are intentionally zeroed out. There is no
+ * non-racy way to read them without freezing the task.
+ * Programs that need reliable values can use ptrace(2).
+ */
}
get_task_comm(tcomm, task);
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 8e65446..adfc5b4 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -252,7 +252,7 @@
* Inherently racy -- command line shares address space
* with code and data.
*/
- rv = access_remote_vm(mm, arg_end - 1, &c, 1, FOLL_FORCE);
+ rv = access_remote_vm(mm, arg_end - 1, &c, 1, 0);
if (rv <= 0)
goto out_free_page;
@@ -270,8 +270,7 @@
int nr_read;
_count = min3(count, len, PAGE_SIZE);
- nr_read = access_remote_vm(mm, p, page, _count,
- FOLL_FORCE);
+ nr_read = access_remote_vm(mm, p, page, _count, 0);
if (nr_read < 0)
rv = nr_read;
if (nr_read <= 0)
@@ -306,8 +305,7 @@
bool final;
_count = min3(count, len, PAGE_SIZE);
- nr_read = access_remote_vm(mm, p, page, _count,
- FOLL_FORCE);
+ nr_read = access_remote_vm(mm, p, page, _count, 0);
if (nr_read < 0)
rv = nr_read;
if (nr_read <= 0)
@@ -356,8 +354,7 @@
bool final;
_count = min3(count, len, PAGE_SIZE);
- nr_read = access_remote_vm(mm, p, page, _count,
- FOLL_FORCE);
+ nr_read = access_remote_vm(mm, p, page, _count, 0);
if (nr_read < 0)
rv = nr_read;
if (nr_read <= 0)
@@ -835,7 +832,7 @@
unsigned long addr = *ppos;
ssize_t copied;
char *page;
- unsigned int flags = FOLL_FORCE;
+ unsigned int flags;
if (!mm)
return 0;
@@ -848,6 +845,8 @@
if (!atomic_inc_not_zero(&mm->mm_users))
goto free;
+ /* Maybe we should limit FOLL_FORCE to actual ptrace users? */
+ flags = FOLL_FORCE;
if (write)
flags |= FOLL_WRITE;
@@ -971,8 +970,7 @@
max_len = min_t(size_t, PAGE_SIZE, count);
this_len = min(max_len, this_len);
- retval = access_remote_vm(mm, (env_start + src),
- page, this_len, FOLL_FORCE);
+ retval = access_remote_vm(mm, (env_start + src), page, this_len, 0);
if (retval <= 0) {
ret = retval;
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 6909582..35b92d8 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -266,24 +266,15 @@
* /proc/PID/maps that is the stack of the main task.
*/
static int is_stack(struct proc_maps_private *priv,
- struct vm_area_struct *vma, int is_pid)
+ struct vm_area_struct *vma)
{
- int stack = 0;
-
- if (is_pid) {
- stack = vma->vm_start <= vma->vm_mm->start_stack &&
- vma->vm_end >= vma->vm_mm->start_stack;
- } else {
- struct inode *inode = priv->inode;
- struct task_struct *task;
-
- rcu_read_lock();
- task = pid_task(proc_pid(inode), PIDTYPE_PID);
- if (task)
- stack = vma_is_stack_for_task(vma, task);
- rcu_read_unlock();
- }
- return stack;
+ /*
+ * We make no effort to guess what a given thread considers to be
+ * its "stack". It's not even well-defined for programs written
+ * languages like Go.
+ */
+ return vma->vm_start <= vma->vm_mm->start_stack &&
+ vma->vm_end >= vma->vm_mm->start_stack;
}
static void
@@ -354,7 +345,7 @@
goto done;
}
- if (is_stack(priv, vma, is_pid))
+ if (is_stack(priv, vma))
name = "[stack]";
}
@@ -1669,7 +1660,7 @@
seq_file_path(m, file, "\n\t= ");
} else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
seq_puts(m, " heap");
- } else if (is_stack(proc_priv, vma, is_pid)) {
+ } else if (is_stack(proc_priv, vma)) {
seq_puts(m, " stack");
}
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index faacb0c..3717562 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -124,25 +124,17 @@
}
static int is_stack(struct proc_maps_private *priv,
- struct vm_area_struct *vma, int is_pid)
+ struct vm_area_struct *vma)
{
struct mm_struct *mm = vma->vm_mm;
- int stack = 0;
- if (is_pid) {
- stack = vma->vm_start <= mm->start_stack &&
- vma->vm_end >= mm->start_stack;
- } else {
- struct inode *inode = priv->inode;
- struct task_struct *task;
-
- rcu_read_lock();
- task = pid_task(proc_pid(inode), PIDTYPE_PID);
- if (task)
- stack = vma_is_stack_for_task(vma, task);
- rcu_read_unlock();
- }
- return stack;
+ /*
+ * We make no effort to guess what a given thread considers to be
+ * its "stack". It's not even well-defined for programs written
+ * languages like Go.
+ */
+ return vma->vm_start <= mm->start_stack &&
+ vma->vm_end >= mm->start_stack;
}
/*
@@ -184,7 +176,7 @@
if (file) {
seq_pad(m, ' ');
seq_file_path(m, file, "");
- } else if (mm && is_stack(priv, vma, is_pid)) {
+ } else if (mm && is_stack(priv, vma)) {
seq_pad(m, ' ');
seq_printf(m, "[stack]");
}
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index c8f60df..bd4a5e8 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -439,7 +439,7 @@
*/
static int ubifs_readdir(struct file *file, struct dir_context *ctx)
{
- int err;
+ int err = 0;
struct qstr nm;
union ubifs_key key;
struct ubifs_dent_node *dent;
@@ -541,14 +541,12 @@
kfree(file->private_data);
file->private_data = NULL;
- if (err != -ENOENT) {
+ if (err != -ENOENT)
ubifs_err(c, "cannot find next direntry, error %d", err);
- return err;
- }
/* 2 is a special value indicating that there are no more direntries */
ctx->pos = 2;
- return 0;
+ return err;
}
/* Free saved readdir() state when the directory is closed */
@@ -1060,9 +1058,9 @@
mutex_unlock(&ubifs_inode(inode1)->ui_mutex);
}
-static int ubifs_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry,
- unsigned int flags)
+static int do_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry,
+ unsigned int flags)
{
struct ubifs_info *c = old_dir->i_sb->s_fs_info;
struct inode *old_inode = d_inode(old_dentry);
@@ -1323,7 +1321,7 @@
return err;
}
-static int ubifs_rename2(struct inode *old_dir, struct dentry *old_dentry,
+static int ubifs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags)
{
@@ -1336,7 +1334,7 @@
if (flags & RENAME_EXCHANGE)
return ubifs_xrename(old_dir, old_dentry, new_dir, new_dentry);
- return ubifs_rename(old_dir, old_dentry, new_dir, new_dentry, flags);
+ return do_rename(old_dir, old_dentry, new_dir, new_dentry, flags);
}
int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
@@ -1387,7 +1385,7 @@
.mkdir = ubifs_mkdir,
.rmdir = ubifs_rmdir,
.mknod = ubifs_mknod,
- .rename = ubifs_rename2,
+ .rename = ubifs_rename,
.setattr = ubifs_setattr,
.getattr = ubifs_getattr,
.listxattr = ubifs_listxattr,
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index 6c2f4d4..d9f9615 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -172,6 +172,7 @@
host_ui->xattr_cnt -= 1;
host_ui->xattr_size -= CALC_DENT_SIZE(nm->len);
host_ui->xattr_size -= CALC_XATTR_BYTES(size);
+ host_ui->xattr_names -= nm->len;
mutex_unlock(&host_ui->ui_mutex);
out_free:
make_bad_inode(inode);
@@ -478,6 +479,7 @@
host_ui->xattr_cnt += 1;
host_ui->xattr_size += CALC_DENT_SIZE(nm->len);
host_ui->xattr_size += CALC_XATTR_BYTES(ui->data_len);
+ host_ui->xattr_names += nm->len;
mutex_unlock(&host_ui->ui_mutex);
ubifs_release_budget(c, &req);
make_bad_inode(inode);
diff --git a/include/acpi/pcc.h b/include/acpi/pcc.h
index 17a940a..8caa79c 100644
--- a/include/acpi/pcc.h
+++ b/include/acpi/pcc.h
@@ -21,7 +21,7 @@
static inline struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,
int subspace_id)
{
- return NULL;
+ return ERR_PTR(-ENODEV);
}
static inline void pcc_mbox_free_channel(struct mbox_chan *chan) { }
#endif
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index af59638..a428aec 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -785,7 +785,7 @@
* routines, one at of_clk_init(), and one at platform device probe
*/
#define CLK_OF_DECLARE_DRIVER(name, compat, fn) \
- static void name##_of_clk_init_driver(struct device_node *np) \
+ static void __init name##_of_clk_init_driver(struct device_node *np) \
{ \
of_node_clear_flag(np, OF_POPULATED); \
fn(np); \
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index 9b207a8..afe641c 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -81,6 +81,7 @@
CPUHP_AP_ARM_ARCH_TIMER_STARTING,
CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
CPUHP_AP_DUMMY_TIMER_STARTING,
+ CPUHP_AP_JCORE_TIMER_STARTING,
CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
CPUHP_AP_ARM_TWD_STARTING,
CPUHP_AP_METAG_TIMER_STARTING,
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 8361c8d..b7e3431 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -290,7 +290,7 @@
#define GITS_BASER_TYPE_SHIFT (56)
#define GITS_BASER_TYPE(r) (((r) >> GITS_BASER_TYPE_SHIFT) & 7)
#define GITS_BASER_ENTRY_SIZE_SHIFT (48)
-#define GITS_BASER_ENTRY_SIZE(r) ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0xff) + 1)
+#define GITS_BASER_ENTRY_SIZE(r) ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
#define GITS_BASER_SHAREABILITY_SHIFT (10)
#define GITS_BASER_InnerShareable \
GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ffbd729..a92c8d7 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1271,10 +1271,6 @@
extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
void *buf, int len, unsigned int gup_flags);
-long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
- unsigned long start, unsigned long nr_pages,
- unsigned int foll_flags, struct page **pages,
- struct vm_area_struct **vmas, int *nonblocking);
long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
unsigned int gup_flags, struct page **pages,
@@ -1391,7 +1387,7 @@
!vma_growsup(vma->vm_next, addr);
}
-int vma_is_stack_for_task(struct vm_area_struct *vma, struct task_struct *t);
+int vma_is_stack_for_current(struct vm_area_struct *vma);
extern unsigned long move_page_tables(struct vm_area_struct *vma,
unsigned long old_addr, struct vm_area_struct *new_vma,
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 7f2ae99..0f088f3 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -440,33 +440,7 @@
seqlock_t span_seqlock;
#endif
- /*
- * wait_table -- the array holding the hash table
- * wait_table_hash_nr_entries -- the size of the hash table array
- * wait_table_bits -- wait_table_size == (1 << wait_table_bits)
- *
- * The purpose of all these is to keep track of the people
- * waiting for a page to become available and make them
- * runnable again when possible. The trouble is that this
- * consumes a lot of space, especially when so few things
- * wait on pages at a given time. So instead of using
- * per-page waitqueues, we use a waitqueue hash table.
- *
- * The bucket discipline is to sleep on the same queue when
- * colliding and wake all in that wait queue when removing.
- * When something wakes, it must check to be sure its page is
- * truly available, a la thundering herd. The cost of a
- * collision is great, but given the expected load of the
- * table, they should be so rare as to be outweighed by the
- * benefits from the saved space.
- *
- * __wait_on_page_locked() and unlock_page() in mm/filemap.c, are the
- * primary users of these fields, and in mm/page_alloc.c
- * free_area_init_core() performs the initialization of them.
- */
- wait_queue_head_t *wait_table;
- unsigned long wait_table_hash_nr_entries;
- unsigned long wait_table_bits;
+ int initialized;
/* Write-intensive fields used from the page allocator */
ZONE_PADDING(_pad1_)
@@ -546,7 +520,7 @@
static inline bool zone_is_initialized(struct zone *zone)
{
- return !!zone->wait_table;
+ return zone->initialized;
}
static inline bool zone_is_empty(struct zone *zone)
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index 45f004e..2873baf 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -14,17 +14,6 @@
struct compat_timespec;
#ifdef CONFIG_THREAD_INFO_IN_TASK
-struct thread_info {
- unsigned long flags; /* low level flags */
-};
-
-#define INIT_THREAD_INFO(tsk) \
-{ \
- .flags = 0, \
-}
-#endif
-
-#ifdef CONFIG_THREAD_INFO_IN_TASK
#define current_thread_info() ((struct thread_info *)current)
#endif
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index fb8e3b6..c211900 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -177,6 +177,7 @@
TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED = R(0x15),
TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED = R(0x16),
TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED = R(0x17),
+ TCM_COPY_TARGET_DEVICE_NOT_REACHABLE = R(0x18),
#undef R
};
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 6965d09..cd2be1c 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -75,6 +75,7 @@
header-y += bpf.h
header-y += bpqether.h
header-y += bsg.h
+header-y += bt-bmc.h
header-y += btrfs.h
header-y += can.h
header-y += capability.h
diff --git a/include/uapi/linux/bt-bmc.h b/include/uapi/linux/bt-bmc.h
new file mode 100644
index 0000000..d9ec766
--- /dev/null
+++ b/include/uapi/linux/bt-bmc.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2015-2016, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _UAPI_LINUX_BT_BMC_H
+#define _UAPI_LINUX_BT_BMC_H
+
+#include <linux/ioctl.h>
+
+#define __BT_BMC_IOCTL_MAGIC 0xb1
+#define BT_BMC_IOCTL_SMS_ATN _IO(__BT_BMC_IOCTL_MAGIC, 0x00)
+
+#endif /* _UAPI_LINUX_BT_BMC_H */
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 0c5f1a5..9c4d304 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -721,6 +721,7 @@
irq_put_desc_unlock(desc, flags);
return 0;
}
+EXPORT_SYMBOL_GPL(irq_set_parent);
#endif
/*
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 94732d1..42d4027 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7515,11 +7515,27 @@
DECLARE_PER_CPU(cpumask_var_t, load_balance_mask);
DECLARE_PER_CPU(cpumask_var_t, select_idle_mask);
+#define WAIT_TABLE_BITS 8
+#define WAIT_TABLE_SIZE (1 << WAIT_TABLE_BITS)
+static wait_queue_head_t bit_wait_table[WAIT_TABLE_SIZE] __cacheline_aligned;
+
+wait_queue_head_t *bit_waitqueue(void *word, int bit)
+{
+ const int shift = BITS_PER_LONG == 32 ? 5 : 6;
+ unsigned long val = (unsigned long)word << shift | bit;
+
+ return bit_wait_table + hash_long(val, WAIT_TABLE_BITS);
+}
+EXPORT_SYMBOL(bit_waitqueue);
+
void __init sched_init(void)
{
int i, j;
unsigned long alloc_size = 0, ptr;
+ for (i = 0; i < WAIT_TABLE_SIZE; i++)
+ init_waitqueue_head(bit_wait_table + i);
+
#ifdef CONFIG_FAIR_GROUP_SCHED
alloc_size += 2 * nr_cpu_ids * sizeof(void **);
#endif
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c
index 4f70535..9453efe 100644
--- a/kernel/sched/wait.c
+++ b/kernel/sched/wait.c
@@ -480,16 +480,6 @@
}
EXPORT_SYMBOL(wake_up_bit);
-wait_queue_head_t *bit_waitqueue(void *word, int bit)
-{
- const int shift = BITS_PER_LONG == 32 ? 5 : 6;
- const struct zone *zone = page_zone(virt_to_page(word));
- unsigned long val = (unsigned long)word << shift | bit;
-
- return &zone->wait_table[hash_long(val, zone->wait_table_bits)];
-}
-EXPORT_SYMBOL(bit_waitqueue);
-
/*
* Manipulate the atomic_t address to produce a better bit waitqueue table hash
* index (we're keying off bit -1, but that would produce a horrible hash
diff --git a/mm/filemap.c b/mm/filemap.c
index 849f459..c7fe2f1 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -790,9 +790,7 @@
*/
wait_queue_head_t *page_waitqueue(struct page *page)
{
- const struct zone *zone = page_zone(page);
-
- return &zone->wait_table[hash_ptr(page, zone->wait_table_bits)];
+ return bit_waitqueue(page, 0);
}
EXPORT_SYMBOL(page_waitqueue);
diff --git a/mm/gup.c b/mm/gup.c
index 7aa113c..ec4f827 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -526,7 +526,7 @@
* instead of __get_user_pages. __get_user_pages should be used only if
* you need some special @gup_flags.
*/
-long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
+static long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
unsigned int gup_flags, struct page **pages,
struct vm_area_struct **vmas, int *nonblocking)
@@ -631,7 +631,6 @@
} while (nr_pages);
return i;
}
-EXPORT_SYMBOL(__get_user_pages);
bool vma_permits_fault(struct vm_area_struct *vma, unsigned int fault_flags)
{
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 9629273..b18dab40 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -268,7 +268,6 @@
unsigned long i, pfn, end_pfn, nr_pages;
int node = pgdat->node_id;
struct page *page;
- struct zone *zone;
nr_pages = PAGE_ALIGN(sizeof(struct pglist_data)) >> PAGE_SHIFT;
page = virt_to_page(pgdat);
@@ -276,19 +275,6 @@
for (i = 0; i < nr_pages; i++, page++)
get_page_bootmem(node, page, NODE_INFO);
- zone = &pgdat->node_zones[0];
- for (; zone < pgdat->node_zones + MAX_NR_ZONES - 1; zone++) {
- if (zone_is_initialized(zone)) {
- nr_pages = zone->wait_table_hash_nr_entries
- * sizeof(wait_queue_head_t);
- nr_pages = PAGE_ALIGN(nr_pages) >> PAGE_SHIFT;
- page = virt_to_page(zone->wait_table);
-
- for (i = 0; i < nr_pages; i++, page++)
- get_page_bootmem(node, page, NODE_INFO);
- }
- }
-
pfn = pgdat->node_start_pfn;
end_pfn = pgdat_end_pfn(pgdat);
@@ -2158,20 +2144,6 @@
*/
node_set_offline(nid);
unregister_one_node(nid);
-
- /* free waittable in each zone */
- for (i = 0; i < MAX_NR_ZONES; i++) {
- struct zone *zone = pgdat->node_zones + i;
-
- /*
- * wait_table may be allocated from boot memory,
- * here only free if it's allocated by vmalloc.
- */
- if (is_vmalloc_addr(zone->wait_table)) {
- vfree(zone->wait_table);
- zone->wait_table = NULL;
- }
- }
}
EXPORT_SYMBOL(try_offline_node);
diff --git a/mm/mprotect.c b/mm/mprotect.c
index bcdbe62..1193652 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -25,7 +25,6 @@
#include <linux/perf_event.h>
#include <linux/pkeys.h>
#include <linux/ksm.h>
-#include <linux/pkeys.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/cacheflush.h>
diff --git a/mm/nommu.c b/mm/nommu.c
index db5fd17..8b8faaf 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -109,7 +109,7 @@
return PAGE_SIZE << compound_order(page);
}
-long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
+static long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
unsigned int foll_flags, struct page **pages,
struct vm_area_struct **vmas, int *nonblocking)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2b3bf67..de7c6e4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4977,72 +4977,6 @@
}
/*
- * Helper functions to size the waitqueue hash table.
- * Essentially these want to choose hash table sizes sufficiently
- * large so that collisions trying to wait on pages are rare.
- * But in fact, the number of active page waitqueues on typical
- * systems is ridiculously low, less than 200. So this is even
- * conservative, even though it seems large.
- *
- * The constant PAGES_PER_WAITQUEUE specifies the ratio of pages to
- * waitqueues, i.e. the size of the waitq table given the number of pages.
- */
-#define PAGES_PER_WAITQUEUE 256
-
-#ifndef CONFIG_MEMORY_HOTPLUG
-static inline unsigned long wait_table_hash_nr_entries(unsigned long pages)
-{
- unsigned long size = 1;
-
- pages /= PAGES_PER_WAITQUEUE;
-
- while (size < pages)
- size <<= 1;
-
- /*
- * Once we have dozens or even hundreds of threads sleeping
- * on IO we've got bigger problems than wait queue collision.
- * Limit the size of the wait table to a reasonable size.
- */
- size = min(size, 4096UL);
-
- return max(size, 4UL);
-}
-#else
-/*
- * A zone's size might be changed by hot-add, so it is not possible to determine
- * a suitable size for its wait_table. So we use the maximum size now.
- *
- * The max wait table size = 4096 x sizeof(wait_queue_head_t). ie:
- *
- * i386 (preemption config) : 4096 x 16 = 64Kbyte.
- * ia64, x86-64 (no preemption): 4096 x 20 = 80Kbyte.
- * ia64, x86-64 (preemption) : 4096 x 24 = 96Kbyte.
- *
- * The maximum entries are prepared when a zone's memory is (512K + 256) pages
- * or more by the traditional way. (See above). It equals:
- *
- * i386, x86-64, powerpc(4K page size) : = ( 2G + 1M)byte.
- * ia64(16K page size) : = ( 8G + 4M)byte.
- * powerpc (64K page size) : = (32G +16M)byte.
- */
-static inline unsigned long wait_table_hash_nr_entries(unsigned long pages)
-{
- return 4096UL;
-}
-#endif
-
-/*
- * This is an integer logarithm so that shifts can be used later
- * to extract the more random high bits from the multiplicative
- * hash function before the remainder is taken.
- */
-static inline unsigned long wait_table_bits(unsigned long size)
-{
- return ffz(~size);
-}
-
-/*
* Initially all pages are reserved - free ones are freed
* up by free_all_bootmem() once the early boot process is
* done. Non-atomic initialization, single-pass.
@@ -5304,49 +5238,6 @@
alloc_percpu(struct per_cpu_nodestat);
}
-static noinline __ref
-int zone_wait_table_init(struct zone *zone, unsigned long zone_size_pages)
-{
- int i;
- size_t alloc_size;
-
- /*
- * The per-page waitqueue mechanism uses hashed waitqueues
- * per zone.
- */
- zone->wait_table_hash_nr_entries =
- wait_table_hash_nr_entries(zone_size_pages);
- zone->wait_table_bits =
- wait_table_bits(zone->wait_table_hash_nr_entries);
- alloc_size = zone->wait_table_hash_nr_entries
- * sizeof(wait_queue_head_t);
-
- if (!slab_is_available()) {
- zone->wait_table = (wait_queue_head_t *)
- memblock_virt_alloc_node_nopanic(
- alloc_size, zone->zone_pgdat->node_id);
- } else {
- /*
- * This case means that a zone whose size was 0 gets new memory
- * via memory hot-add.
- * But it may be the case that a new node was hot-added. In
- * this case vmalloc() will not be able to use this new node's
- * memory - this wait_table must be initialized to use this new
- * node itself as well.
- * To use this new node's memory, further consideration will be
- * necessary.
- */
- zone->wait_table = vmalloc(alloc_size);
- }
- if (!zone->wait_table)
- return -ENOMEM;
-
- for (i = 0; i < zone->wait_table_hash_nr_entries; ++i)
- init_waitqueue_head(zone->wait_table + i);
-
- return 0;
-}
-
static __meminit void zone_pcp_init(struct zone *zone)
{
/*
@@ -5367,10 +5258,7 @@
unsigned long size)
{
struct pglist_data *pgdat = zone->zone_pgdat;
- int ret;
- ret = zone_wait_table_init(zone, size);
- if (ret)
- return ret;
+
pgdat->nr_zones = zone_idx(zone) + 1;
zone->zone_start_pfn = zone_start_pfn;
@@ -5382,6 +5270,7 @@
zone_start_pfn, (zone_start_pfn + size));
zone_init_free_lists(zone);
+ zone->initialized = 1;
return 0;
}
diff --git a/mm/util.c b/mm/util.c
index 952cbe7..1a41553 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -230,8 +230,10 @@
}
/* Check if the vma is being used as a stack by this task */
-int vma_is_stack_for_task(struct vm_area_struct *vma, struct task_struct *t)
+int vma_is_stack_for_current(struct vm_area_struct *vma)
{
+ struct task_struct * __maybe_unused t = current;
+
return (vma->vm_start <= KSTK_ESP(t) && vma->vm_end >= KSTK_ESP(t));
}
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 0850579..09fd610 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3557,7 +3557,7 @@
} else if (!vma->vm_file &&
((vma->vm_start <= vma->vm_mm->start_stack &&
vma->vm_end >= vma->vm_mm->start_stack) ||
- vma_is_stack_for_task(vma, current))) {
+ vma_is_stack_for_current(vma))) {
rc = current_has_perm(current, PROCESS__EXECSTACK);
} else if (vma->vm_file && vma->anon_vma) {
/*
diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h
index 1188bc8..a396292 100644
--- a/tools/arch/x86/include/asm/cpufeatures.h
+++ b/tools/arch/x86/include/asm/cpufeatures.h
@@ -194,6 +194,8 @@
#define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */
#define X86_FEATURE_INTEL_PT ( 7*32+15) /* Intel Processor Trace */
+#define X86_FEATURE_AVX512_4VNNIW (7*32+16) /* AVX-512 Neural Network Instructions */
+#define X86_FEATURE_AVX512_4FMAPS (7*32+17) /* AVX-512 Multiply Accumulation Single precision */
/* Virtualization flags: Linux defined, word 8 */
#define X86_FEATURE_TPR_SHADOW ( 8*32+ 0) /* Intel TPR Shadow */
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 28510e7..2907b7b 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1346,21 +1346,19 @@
static int get_user_page_nowait(unsigned long start, int write,
struct page **page)
{
- int flags = FOLL_TOUCH | FOLL_NOWAIT | FOLL_HWPOISON | FOLL_GET;
+ int flags = FOLL_NOWAIT | FOLL_HWPOISON;
if (write)
flags |= FOLL_WRITE;
- return __get_user_pages(current, current->mm, start, 1, flags, page,
- NULL, NULL);
+ return get_user_pages(start, 1, flags, page, NULL);
}
static inline int check_user_page_hwpoison(unsigned long addr)
{
- int rc, flags = FOLL_TOUCH | FOLL_HWPOISON | FOLL_WRITE;
+ int rc, flags = FOLL_HWPOISON | FOLL_WRITE;
- rc = __get_user_pages(current, current->mm, addr, 1,
- flags, NULL, NULL, NULL);
+ rc = get_user_pages(addr, 1, flags, NULL, NULL);
return rc == -EHWPOISON;
}