Commit 4d23359b authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Jaroslav Kysela
Browse files

[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: default avatarClemens Ladisch <clemens@ladisch.de>
parent 49045d3d
......@@ -249,7 +249,7 @@ int __exit snd_memory_info_done(void)
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_to_user_fromio(void __user *dst, const volatile void __iomem *src, size
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) {
......
......@@ -850,7 +850,9 @@ static ssize_t snd_pcm_oss_write1(snd_pcm_substream_t *substream, const char __u
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 @@ static ssize_t snd_pcm_oss_read1(snd_pcm_substream_t *substream, char __user *bu
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;
......
......@@ -984,7 +984,9 @@ static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t coun
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 @@ static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf, size
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;
......
......@@ -413,7 +413,9 @@ static ssize_t snd_seq_read(struct file *file, char __user *buf, size_t count, l
}
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 @@ static ssize_t snd_seq_write(struct file *file, const char __user *buf, size_t c
}
/* 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
......
......@@ -470,7 +470,7 @@ static void snd_emu10k1_write_op(emu10k1_fx8010_code_t *icode, unsigned int *ptr
{
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 @@ static void snd_emu10k1_audigy_write_op(emu10k1_fx8010_code_t *icode, unsigned i
{
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 @@ static int __devinit _snd_emu10k1_audigy_init_efx(emu10k1_t *emu)
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 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))
__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 @@ static int __devinit _snd_emu10k1_init_efx(emu10k1_t *emu)
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 @@ static int __devinit _snd_emu10k1_init_efx(emu10k1_t *emu)
kfree(ipcm);
kfree(controls);
if (icode != NULL) {
kfree((void *)icode->gpr_map);
kfree((void __force *)icode->gpr_map);
kfree(icode);
}
return err;
......
......@@ -840,7 +840,7 @@ static void snd_nm256_setup_stream(nm256_t *chip, nm256_stream_t *s,
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;
......
......@@ -692,7 +692,8 @@ snd_rme32_playback_hw_params(snd_pcm_substream_t * substream,
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 @@ snd_rme32_capture_hw_params(snd_pcm_substream_t * substream,
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;
}
......
......@@ -985,7 +985,8 @@ snd_rme96_playback_hw_params(snd_pcm_substream_t *substream,
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_rme96_capture_hw_params(snd_pcm_substream_t *substream,
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;
......
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