[ALSA] sparse address space annotations
ALSA Core,RawMidi Midlevel,ALSA<-OSS emulation,ALSA sequencer
RME32 driver,RME96 driver,EMU10K1/EMU10K2 driver,NM256 driver
Add sparse annotations where we do strange this with __iomem/__user
pointers.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/core/memory.c b/sound/core/memory.c
index 291b476..8fa888f 100644
--- a/sound/core/memory.c
+++ b/sound/core/memory.c
@@ -249,7 +249,7 @@
int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count)
{
#if defined(__i386__) || defined(CONFIG_SPARC32)
- return copy_to_user(dst, (const void*)src, count) ? -EFAULT : 0;
+ return copy_to_user(dst, (const void __force*)src, count) ? -EFAULT : 0;
#else
char buf[256];
while (count) {
@@ -280,7 +280,7 @@
int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count)
{
#if defined(__i386__) || defined(CONFIG_SPARC32)
- return copy_from_user((void*)dst, src, count) ? -EFAULT : 0;
+ return copy_from_user((void __force *)dst, src, count) ? -EFAULT : 0;
#else
char buf[256];
while (count) {
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index a13bd7b..1e60639 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -850,7 +850,9 @@
return xfer > 0 ? xfer : -EAGAIN;
}
} else {
- tmp = snd_pcm_oss_write2(substream, (const char *)buf, runtime->oss.period_bytes, 0);
+ tmp = snd_pcm_oss_write2(substream,
+ (const char __force *)buf,
+ runtime->oss.period_bytes, 0);
if (tmp <= 0)
return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
runtime->oss.bytes += tmp;
@@ -926,7 +928,8 @@
xfer += tmp;
runtime->oss.buffer_used -= tmp;
} else {
- tmp = snd_pcm_oss_read2(substream, (char *)buf, runtime->oss.period_bytes, 0);
+ tmp = snd_pcm_oss_read2(substream, (char __force *)buf,
+ runtime->oss.period_bytes, 0);
if (tmp <= 0)
return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
runtime->oss.bytes += tmp;
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index edba411..d705ec7 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -984,7 +984,9 @@
spin_lock_irq(&runtime->lock);
}
spin_unlock_irq(&runtime->lock);
- count1 = snd_rawmidi_kernel_read1(substream, (unsigned char *)buf, count, 0);
+ count1 = snd_rawmidi_kernel_read1(substream,
+ (unsigned char __force *)buf,
+ count, 0);
if (count1 < 0)
return result > 0 ? result : count1;
result += count1;
@@ -1213,7 +1215,9 @@
spin_lock_irq(&runtime->lock);
}
spin_unlock_irq(&runtime->lock);
- count1 = snd_rawmidi_kernel_write1(substream, (unsigned char *)buf, count, 0);
+ count1 = snd_rawmidi_kernel_write1(substream,
+ (unsigned char __force *)buf,
+ count, 0);
if (count1 < 0)
return result > 0 ? result : count1;
result += count1;
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index d8f76af..bd10662 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -413,7 +413,9 @@
}
count -= sizeof(snd_seq_event_t);
buf += sizeof(snd_seq_event_t);
- err = snd_seq_expand_var_event(&cell->event, count, (char *)buf, 0, sizeof(snd_seq_event_t));
+ err = snd_seq_expand_var_event(&cell->event, count,
+ (char __force *)buf, 0,
+ sizeof(snd_seq_event_t));
if (err < 0)
break;
result += err;
@@ -1009,7 +1011,8 @@
}
/* set user space pointer */
event.data.ext.len = extlen | SNDRV_SEQ_EXT_USRPTR;
- event.data.ext.ptr = (char*)buf + sizeof(snd_seq_event_t);
+ event.data.ext.ptr = (char __force *)buf
+ + sizeof(snd_seq_event_t);
len += extlen; /* increment data length */
} else {
#ifdef CONFIG_COMPAT
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index 637c555..2f7a031 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -470,7 +470,7 @@
{
u_int32_t *code;
snd_assert(*ptr < 512, return);
- code = (u_int32_t *)icode->code + (*ptr) * 2;
+ code = (u_int32_t __force *)icode->code + (*ptr) * 2;
set_bit(*ptr, icode->code_valid);
code[0] = ((x & 0x3ff) << 10) | (y & 0x3ff);
code[1] = ((op & 0x0f) << 20) | ((r & 0x3ff) << 10) | (a & 0x3ff);
@@ -485,7 +485,7 @@
{
u_int32_t *code;
snd_assert(*ptr < 1024, return);
- code = (u_int32_t *)icode->code + (*ptr) * 2;
+ code = (u_int32_t __force *)icode->code + (*ptr) * 2;
set_bit(*ptr, icode->code_valid);
code[0] = ((x & 0x7ff) << 12) | (y & 0x7ff);
code[1] = ((op & 0x0f) << 24) | ((r & 0x7ff) << 12) | (a & 0x7ff);
@@ -1042,7 +1042,7 @@
err = -ENOMEM;
goto __err;
}
- gpr_map = (u32 *)icode->gpr_map;
+ gpr_map = (u32 __force *)icode->gpr_map;
icode->tram_data_map = icode->gpr_map + 512;
icode->tram_addr_map = icode->tram_data_map + 256;
@@ -1431,7 +1431,7 @@
__err:
kfree(controls);
if (icode != NULL) {
- kfree((void *)icode->gpr_map);
+ kfree((void __force *)icode->gpr_map);
kfree(icode);
}
return err;
@@ -1511,7 +1511,7 @@
err = -ENOMEM;
goto __err;
}
- gpr_map = (u32 *)icode->gpr_map;
+ gpr_map = (u32 __force *)icode->gpr_map;
icode->tram_data_map = icode->gpr_map + 256;
icode->tram_addr_map = icode->tram_data_map + 160;
@@ -2032,7 +2032,7 @@
kfree(ipcm);
kfree(controls);
if (icode != NULL) {
- kfree((void *)icode->gpr_map);
+ kfree((void __force *)icode->gpr_map);
kfree(icode);
}
return err;
diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c
index 2bbeb10..24f146b 100644
--- a/sound/pci/nm256/nm256.c
+++ b/sound/pci/nm256/nm256.c
@@ -840,7 +840,7 @@
runtime->hw = *hw_ptr;
runtime->hw.buffer_bytes_max = s->bufsize;
runtime->hw.period_bytes_max = s->bufsize / 2;
- runtime->dma_area = (void*) s->bufptr;
+ runtime->dma_area = (void __force *) s->bufptr;
runtime->dma_addr = s->bufptr_addr;
runtime->dma_bytes = s->bufsize;
runtime->private_data = s;
diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c
index 456be39..cfb5f44 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -692,7 +692,8 @@
if (err < 0)
return err;
} else {
- runtime->dma_area = (void *)(rme32->iobase + RME32_IO_DATA_BUFFER);
+ runtime->dma_area = (void __force *)(rme32->iobase +
+ RME32_IO_DATA_BUFFER);
runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
runtime->dma_bytes = RME32_BUFFER_SIZE;
}
@@ -746,7 +747,8 @@
if (err < 0)
return err;
} else {
- runtime->dma_area = (void *)rme32->iobase + RME32_IO_DATA_BUFFER;
+ runtime->dma_area = (void __force *)rme32->iobase +
+ RME32_IO_DATA_BUFFER;
runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
runtime->dma_bytes = RME32_BUFFER_SIZE;
}
diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
index 9645e90..2da3313 100644
--- a/sound/pci/rme96.c
+++ b/sound/pci/rme96.c
@@ -985,7 +985,8 @@
snd_pcm_runtime_t *runtime = substream->runtime;
int err, rate, dummy;
- runtime->dma_area = (void *)(rme96->iobase + RME96_IO_PLAY_BUFFER);
+ runtime->dma_area = (void __force *)(rme96->iobase +
+ RME96_IO_PLAY_BUFFER);
runtime->dma_addr = rme96->port + RME96_IO_PLAY_BUFFER;
runtime->dma_bytes = RME96_BUFFER_SIZE;
@@ -1037,7 +1038,8 @@
snd_pcm_runtime_t *runtime = substream->runtime;
int err, isadat, rate;
- runtime->dma_area = (void *)(rme96->iobase + RME96_IO_REC_BUFFER);
+ runtime->dma_area = (void __force *)(rme96->iobase +
+ RME96_IO_REC_BUFFER);
runtime->dma_addr = rme96->port + RME96_IO_REC_BUFFER;
runtime->dma_bytes = RME96_BUFFER_SIZE;