Merge branch 'akpm' (patches from Andrew)

Merge fixes from Andrew Morton:
 "14 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  byteswap: try to avoid __builtin_constant_p gcc bug
  lib/stackdepot: avoid to return 0 handle
  mm: fix kcompactd hang during memory offlining
  modpost: fix module autoloading for OF devices with generic compatible property
  proc: prevent accessing /proc/<PID>/environ until it's ready
  mm/zswap: provide unique zpool name
  mm: thp: kvm: fix memory corruption in KVM with THP enabled
  MAINTAINERS: fix Rajendra Nayak's address
  mm, cma: prevent nr_isolated_* counters from going negative
  mm: update min_free_kbytes from khugepaged after core initialization
  huge pagecache: mmap_sem is unlocked when truncation splits pmd
  rapidio/mport_cdev: fix uapi type definitions
  mm: memcontrol: let v2 cgroups follow changes in system swappiness
  mm: thp: correct split_huge_pages file permission
diff --git a/.mailmap b/.mailmap
index c156a8b..08b8042 100644
--- a/.mailmap
+++ b/.mailmap
@@ -69,6 +69,7 @@
 Jeff Garzik <jgarzik@pretzel.yyz.us>
 Jens Axboe <axboe@suse.de>
 Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
+John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
 John Stultz <johnstul@us.ibm.com>
 <josh@joshtriplett.org> <josh@freedesktop.org>
 <josh@joshtriplett.org> <josh@kernel.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index cdaf5c7..23aeb66 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -872,9 +872,9 @@
 F:	include/linux/perf/arm_pmu.h
 
 ARM PORT
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.arm.linux.org.uk/
+W:	http://www.armlinux.org.uk/
 S:	Maintained
 F:	arch/arm/
 
@@ -886,35 +886,35 @@
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git
 
 ARM PRIMECELL AACI PL041 DRIVER
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 S:	Maintained
 F:	sound/arm/aaci.*
 
 ARM PRIMECELL CLCD PL110 DRIVER
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 S:	Maintained
 F:	drivers/video/fbdev/amba-clcd.*
 
 ARM PRIMECELL KMI PL050 DRIVER
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 S:	Maintained
 F:	drivers/input/serio/ambakmi.*
 F:	include/linux/amba/kmi.h
 
 ARM PRIMECELL MMCI PL180/1 DRIVER
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 S:	Maintained
 F:	drivers/mmc/host/mmci.*
 F:	include/linux/amba/mmci.h
 
 ARM PRIMECELL UART PL010 AND PL011 DRIVERS
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 S:	Maintained
 F:	drivers/tty/serial/amba-pl01*.c
 F:	include/linux/amba/serial.h
 
 ARM PRIMECELL BUS SUPPORT
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 S:	Maintained
 F:	drivers/amba/
 F:	include/linux/amba/bus.h
@@ -1036,7 +1036,7 @@
 S:	Maintained
 
 ARM/CLKDEV SUPPORT
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm/include/asm/clkdev.h
@@ -1093,9 +1093,9 @@
 N:	digicolor
 
 ARM/EBSA110 MACHINE SUPPORT
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.arm.linux.org.uk/
+W:	http://www.armlinux.org.uk/
 S:	Maintained
 F:	arch/arm/mach-ebsa110/
 F:	drivers/net/ethernet/amd/am79c961a.*
@@ -1124,9 +1124,9 @@
 F:	arch/arm/mm/*-fa*
 
 ARM/FOOTBRIDGE ARCHITECTURE
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.arm.linux.org.uk/
+W:	http://www.armlinux.org.uk/
 S:	Maintained
 F:	arch/arm/include/asm/hardware/dec21285.h
 F:	arch/arm/mach-footbridge/
@@ -1457,7 +1457,7 @@
 ARM/PT DIGITAL BOARD PORT
 M:	Stefan Eletzhofer <stefan.eletzhofer@eletztrick.de>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.arm.linux.org.uk/
+W:	http://www.armlinux.org.uk/
 S:	Maintained
 
 ARM/QUALCOMM SUPPORT
@@ -1493,9 +1493,9 @@
 F:	arch/arm64/boot/dts/renesas/
 
 ARM/RISCPC ARCHITECTURE
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.arm.linux.org.uk/
+W:	http://www.armlinux.org.uk/
 S:	Maintained
 F:	arch/arm/include/asm/hardware/entry-macro-iomd.S
 F:	arch/arm/include/asm/hardware/ioc.h
@@ -1773,9 +1773,9 @@
 F:	drivers/clocksource/versatile.c
 
 ARM/VFP SUPPORT
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.arm.linux.org.uk/
+W:	http://www.armlinux.org.uk/
 S:	Maintained
 F:	arch/arm/vfp/
 
@@ -2921,7 +2921,7 @@
 F:	include/linux/cleancache.h
 
 CLK API
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 L:	linux-clk@vger.kernel.org
 S:	Maintained
 F:	include/linux/clk.h
@@ -3354,9 +3354,9 @@
 F:	drivers/net/ethernet/stmicro/stmmac/
 
 CYBERPRO FB DRIVER
-M:	Russell King <linux@arm.linux.org.uk>
+M:	Russell King <linux@armlinux.org.uk>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.arm.linux.org.uk/
+W:	http://www.armlinux.org.uk/
 S:	Maintained
 F:	drivers/video/fbdev/cyber2000fb.*
 
@@ -3881,7 +3881,7 @@
 
 DRM DRIVERS FOR VIVANTE GPU IP
 M:	Lucas Stach <l.stach@pengutronix.de>
-R:	Russell King <linux+etnaviv@arm.linux.org.uk>
+R:	Russell King <linux+etnaviv@armlinux.org.uk>
 R:	Christian Gmeiner <christian.gmeiner@gmail.com>
 L:	dri-devel@lists.freedesktop.org
 S:	Maintained
@@ -6905,7 +6905,7 @@
 S:	Maintained
 
 MARVELL ARMADA DRM SUPPORT
-M:	Russell King <rmk+kernel@arm.linux.org.uk>
+M:	Russell King <rmk+kernel@armlinux.org.uk>
 S:	Maintained
 F:	drivers/gpu/drm/armada/
 
@@ -7905,7 +7905,7 @@
 F:	drivers/nfc/nxp-nci
 
 NXP TDA998X DRM DRIVER
-M:	Russell King <rmk+kernel@arm.linux.org.uk>
+M:	Russell King <rmk+kernel@armlinux.org.uk>
 S:	Supported
 F:	drivers/gpu/drm/i2c/tda998x_drv.c
 F:	include/drm/i2c/tda998x.h
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index b3c26a9..d9e2d9c 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -329,6 +329,7 @@
 	regulator-name = "V28";
 	regulator-min-microvolt = <2800000>;
 	regulator-max-microvolt = <2800000>;
+	regulator-initial-mode = <0x0e>; /* RES_STATE_ACTIVE */
 	regulator-always-on; /* due to battery cover sensor */
 };
 
@@ -336,30 +337,35 @@
 	regulator-name = "VCSI";
 	regulator-min-microvolt = <1800000>;
 	regulator-max-microvolt = <1800000>;
+	regulator-initial-mode = <0x0e>; /* RES_STATE_ACTIVE */
 };
 
 &vaux3 {
 	regulator-name = "VMMC2_30";
 	regulator-min-microvolt = <2800000>;
 	regulator-max-microvolt = <3000000>;
+	regulator-initial-mode = <0x0e>; /* RES_STATE_ACTIVE */
 };
 
 &vaux4 {
 	regulator-name = "VCAM_ANA_28";
 	regulator-min-microvolt = <2800000>;
 	regulator-max-microvolt = <2800000>;
+	regulator-initial-mode = <0x0e>; /* RES_STATE_ACTIVE */
 };
 
 &vmmc1 {
 	regulator-name = "VMMC1";
 	regulator-min-microvolt = <1850000>;
 	regulator-max-microvolt = <3150000>;
+	regulator-initial-mode = <0x0e>; /* RES_STATE_ACTIVE */
 };
 
 &vmmc2 {
 	regulator-name = "V28_A";
 	regulator-min-microvolt = <2800000>;
 	regulator-max-microvolt = <3000000>;
+	regulator-initial-mode = <0x0e>; /* RES_STATE_ACTIVE */
 	regulator-always-on; /* due VIO leak to AIC34 VDDs */
 };
 
@@ -367,6 +373,7 @@
 	regulator-name = "VPLL";
 	regulator-min-microvolt = <1800000>;
 	regulator-max-microvolt = <1800000>;
+	regulator-initial-mode = <0x0e>; /* RES_STATE_ACTIVE */
 	regulator-always-on;
 };
 
@@ -374,6 +381,7 @@
 	regulator-name = "VSDI_CSI";
 	regulator-min-microvolt = <1800000>;
 	regulator-max-microvolt = <1800000>;
+	regulator-initial-mode = <0x0e>; /* RES_STATE_ACTIVE */
 	regulator-always-on;
 };
 
@@ -381,6 +389,7 @@
 	regulator-name = "VMMC2_IO_18";
 	regulator-min-microvolt = <1800000>;
 	regulator-max-microvolt = <1800000>;
+	regulator-initial-mode = <0x0e>; /* RES_STATE_ACTIVE */
 };
 
 &vio {
diff --git a/arch/arm/boot/dts/omap34xx.dtsi b/arch/arm/boot/dts/omap34xx.dtsi
index 387dc31..96f8ce7 100644
--- a/arch/arm/boot/dts/omap34xx.dtsi
+++ b/arch/arm/boot/dts/omap34xx.dtsi
@@ -46,7 +46,7 @@
 			       0x480bd800 0x017c>;
 			interrupts = <24>;
 			iommus = <&mmu_isp>;
-			syscon = <&scm_conf 0xdc>;
+			syscon = <&scm_conf 0x6c>;
 			ti,phy-type = <OMAP3ISP_PHY_TYPE_COMPLEX_IO>;
 			#clock-cells = <1>;
 			ports {
diff --git a/arch/arm/boot/dts/omap5-board-common.dtsi b/arch/arm/boot/dts/omap5-board-common.dtsi
index 902657d..914bf4c 100644
--- a/arch/arm/boot/dts/omap5-board-common.dtsi
+++ b/arch/arm/boot/dts/omap5-board-common.dtsi
@@ -472,7 +472,7 @@
 				ldo1_reg: ldo1 {
 					/* VDDAPHY_CAM: vdda_csiport */
 					regulator-name = "ldo1";
-					regulator-min-microvolt = <1500000>;
+					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
 				};
 
@@ -498,7 +498,7 @@
 				ldo4_reg: ldo4 {
 					/* VDDAPHY_DISP: vdda_dsiport/hdmi */
 					regulator-name = "ldo4";
-					regulator-min-microvolt = <1500000>;
+					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
 				};
 
diff --git a/arch/arm/boot/dts/omap5-cm-t54.dts b/arch/arm/boot/dts/omap5-cm-t54.dts
index ecc591d..4d87d9c 100644
--- a/arch/arm/boot/dts/omap5-cm-t54.dts
+++ b/arch/arm/boot/dts/omap5-cm-t54.dts
@@ -513,7 +513,7 @@
 				ldo1_reg: ldo1 {
 					/* VDDAPHY_CAM: vdda_csiport */
 					regulator-name = "ldo1";
-					regulator-min-microvolt = <1500000>;
+					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
 				};
 
@@ -537,7 +537,7 @@
 				ldo4_reg: ldo4 {
 					/* VDDAPHY_DISP: vdda_dsiport/hdmi */
 					regulator-name = "ldo4";
-					regulator-min-microvolt = <1500000>;
+					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
 				};
 
diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 38805eb..120b6b8 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -269,7 +269,7 @@
 			omap5_pmx_wkup: pinmux@c840 {
 				compatible = "ti,omap5-padconf",
 					     "pinctrl-single";
-				reg = <0xc840 0x0038>;
+				reg = <0xc840 0x003c>;
 				#address-cells = <1>;
 				#size-cells = <0>;
 				#interrupt-cells = <1>;
diff --git a/arch/arm/boot/dts/sun8i-q8-common.dtsi b/arch/arm/boot/dts/sun8i-q8-common.dtsi
index 9d2b7e2..346a49d 100644
--- a/arch/arm/boot/dts/sun8i-q8-common.dtsi
+++ b/arch/arm/boot/dts/sun8i-q8-common.dtsi
@@ -125,8 +125,6 @@
 };
 
 &reg_dc1sw {
-	regulator-min-microvolt = <3000000>;
-	regulator-max-microvolt = <3000000>;
 	regulator-name = "vcc-lcd";
 };
 
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
index d97c588..bc4e63f 100644
--- a/arch/arm/mach-davinci/board-mityomapl138.c
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -121,6 +121,11 @@
 	const char *partnum = NULL;
 	struct davinci_soc_info *soc_info = &davinci_soc_info;
 
+	if (!IS_BUILTIN(CONFIG_NVMEM)) {
+		pr_warn("Factory Config not available without CONFIG_NVMEM\n");
+		goto bad_config;
+	}
+
 	ret = nvmem_device_read(nvmem, 0, sizeof(factory_config),
 				&factory_config);
 	if (ret != sizeof(struct factory_config)) {
diff --git a/arch/arm/mach-davinci/common.c b/arch/arm/mach-davinci/common.c
index f55ef2e..742133b 100644
--- a/arch/arm/mach-davinci/common.c
+++ b/arch/arm/mach-davinci/common.c
@@ -33,6 +33,11 @@
 	char *mac_addr = davinci_soc_info.emac_pdata->mac_addr;
 	off_t offset = (off_t)context;
 
+	if (!IS_BUILTIN(CONFIG_NVMEM)) {
+		pr_warn("Cannot read MAC addr from EEPROM without CONFIG_NVMEM\n");
+		return;
+	}
+
 	/* Read MAC addr from EEPROM */
 	if (nvmem_device_read(nvmem, offset, ETH_ALEN, mac_addr) == ETH_ALEN)
 		pr_info("Read MAC addr from EEPROM: %pM\n", mac_addr);
diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c
index 7c21760..875a2ba 100644
--- a/arch/arm/mach-exynos/pm_domains.c
+++ b/arch/arm/mach-exynos/pm_domains.c
@@ -92,7 +92,7 @@
 			if (IS_ERR(pd->clk[i]))
 				break;
 
-			if (IS_ERR(pd->clk[i]))
+			if (IS_ERR(pd->pclk[i]))
 				continue; /* Skip on first power up */
 			if (clk_set_parent(pd->clk[i], pd->pclk[i]))
 				pr_err("%s: error setting parent to clock%d\n",
diff --git a/arch/arm/mach-socfpga/headsmp.S b/arch/arm/mach-socfpga/headsmp.S
index 5d94b7a..c160fa3 100644
--- a/arch/arm/mach-socfpga/headsmp.S
+++ b/arch/arm/mach-socfpga/headsmp.S
@@ -13,6 +13,7 @@
 #include <asm/assembler.h>
 
 	.arch	armv7-a
+	.arm
 
 ENTRY(secondary_trampoline)
 	/* CPU1 will always fetch from 0x0 when it is brought out of reset.
diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index a7315eb..706d242 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -120,7 +120,6 @@
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
 		clock-frequency = <0>;
-		status = "disabled";
 	};
 
 	soc {
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index d0f35e6..63cc9db 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -287,8 +287,11 @@
 					offset);
 			rc = -ENXIO;
 		}
-	} else
+	} else {
 		rc = 0;
+		if (cmd_rc)
+			*cmd_rc = xlat_status(buf, cmd);
+	}
 
  out:
 	ACPI_FREE(out_obj);
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index f798899..5101f3a 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -397,10 +397,17 @@
 	 */
 	start += start_pad;
 	npfns = (pmem->size - start_pad - end_trunc - SZ_8K) / SZ_4K;
-	if (nd_pfn->mode == PFN_MODE_PMEM)
-		offset = ALIGN(start + SZ_8K + 64 * npfns, nd_pfn->align)
+	if (nd_pfn->mode == PFN_MODE_PMEM) {
+		unsigned long memmap_size;
+
+		/*
+		 * vmemmap_populate_hugepages() allocates the memmap array in
+		 * HPAGE_SIZE chunks.
+		 */
+		memmap_size = ALIGN(64 * npfns, HPAGE_SIZE);
+		offset = ALIGN(start + SZ_8K + memmap_size, nd_pfn->align)
 			- start;
-	else if (nd_pfn->mode == PFN_MODE_RAM)
+	} else if (nd_pfn->mode == PFN_MODE_RAM)
 		offset = ALIGN(start + SZ_8K, nd_pfn->align) - start;
 	else
 		goto err;
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 6e0f5f0..c51afb7 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -718,9 +718,9 @@
 #define __NR_copy_file_range 285
 __SYSCALL(__NR_copy_file_range, sys_copy_file_range)
 #define __NR_preadv2 286
-__SYSCALL(__NR_preadv2, sys_preadv2)
+__SC_COMP(__NR_preadv2, sys_preadv2, compat_sys_preadv2)
 #define __NR_pwritev2 287
-__SYSCALL(__NR_pwritev2, sys_pwritev2)
+__SC_COMP(__NR_pwritev2, sys_pwritev2, compat_sys_pwritev2)
 
 #undef __NR_syscalls
 #define __NR_syscalls 288