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ALSA: emu10k1: Fix annotation and cast for the recent uapi header change

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The recent sound/emu10k1.h uapi header change by the commit
2e46886763 ("ALSA: emu10k1: Make uapi/emu10k1.h compilable again")
made sparse angry because of the inconsistency of __user annotation
and the own ctl id struct that were changed in uapi header.

This patch addresses those by adjusting the cast and annotations
properly again.

Fixes: 2e46886763 ("ALSA: emu10k1: Make uapi/emu10k1.h compilable again")
Link: https://lore.kernel.org/r/20200202090724.18232-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2020-02-02 10:07:23 +01:00
parent 2acf25f13e
commit 81b450909b
1 changed files with 101 additions and 79 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

180
sound/pci/emu10k1/emufx.c
View File

@ -463,7 +463,7 @@ static void snd_emu10k1_write_op(struct snd_emu10k1_fx8010_code *icode,
u_int32_t *code;
if (snd_BUG_ON(*ptr >= 512))
return;
code = (u_int32_t __force *)icode->code + (*ptr) * 2;
code = 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);
@ -480,7 +480,7 @@ static void snd_emu10k1_audigy_write_op(struct snd_emu10k1_fx8010_code *icode,
u_int32_t *code;
if (snd_BUG_ON(*ptr >= 1024))
return;
code = (u_int32_t __force *)icode->code + (*ptr) * 2;
code = 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);
@ -513,8 +513,8 @@ static int snd_emu10k1_gpr_poke(struct snd_emu10k1 *emu,
if (!test_bit(gpr, icode->gpr_valid))
continue;
if (in_kernel)
val = *(__force u32 *)&icode->gpr_map[gpr];
else if (get_user(val, &icode->gpr_map[gpr]))
val = icode->gpr_map[gpr];
else if (get_user(val, (__user u32 *)&icode->gpr_map[gpr]))
return -EFAULT;
snd_emu10k1_ptr_write(emu, emu->gpr_base + gpr, 0, val);
}
@ -530,7 +530,7 @@ static int snd_emu10k1_gpr_peek(struct snd_emu10k1 *emu,
for (gpr = 0; gpr < (emu->audigy ? 0x200 : 0x100); gpr++) {
set_bit(gpr, icode->gpr_valid);
val = snd_emu10k1_ptr_read(emu, emu->gpr_base + gpr, 0);
if (put_user(val, &icode->gpr_map[gpr]))
if (put_user(val, (__user u32 *)&icode->gpr_map[gpr]))
return -EFAULT;
}
return 0;
@ -547,11 +547,11 @@ static int snd_emu10k1_tram_poke(struct snd_emu10k1 *emu,
if (!test_bit(tram, icode->tram_valid))
continue;
if (in_kernel) {
val = *(__force u32 *)&icode->tram_data_map[tram];
addr = *(__force u32 *)&icode->tram_addr_map[tram];
val = icode->tram_data_map[tram];
addr = icode->tram_addr_map[tram];
} else {
if (get_user(val, &icode->tram_data_map[tram]) ||
get_user(addr, &icode->tram_addr_map[tram]))
if (get_user(val, (__user __u32 *)&icode->tram_data_map[tram]) ||
get_user(addr, (__user __u32 *)&icode->tram_addr_map[tram]))
return -EFAULT;
}
snd_emu10k1_ptr_write(emu, TANKMEMDATAREGBASE + tram, 0, val);
@ -581,8 +581,8 @@ static int snd_emu10k1_tram_peek(struct snd_emu10k1 *emu,
addr = snd_emu10k1_ptr_read(emu, TANKMEMADDRREGBASE + tram, 0) >> 12;
addr |= snd_emu10k1_ptr_read(emu, A_TANKMEMCTLREGBASE + tram, 0) << 20;
}
if (put_user(val, &icode->tram_data_map[tram]) ||
put_user(addr, &icode->tram_addr_map[tram]))
if (put_user(val, (__user u32 *)&icode->tram_data_map[tram]) ||
put_user(addr, (__user u32 *)&icode->tram_addr_map[tram]))
return -EFAULT;
}
return 0;
@ -598,11 +598,11 @@ static int snd_emu10k1_code_poke(struct snd_emu10k1 *emu,
if (!test_bit(pc / 2, icode->code_valid))
continue;
if (in_kernel) {
lo = *(__force u32 *)&icode->code[pc + 0];
hi = *(__force u32 *)&icode->code[pc + 1];
lo = icode->code[pc + 0];
hi = icode->code[pc + 1];
} else {
if (get_user(lo, &icode->code[pc + 0]) ||
get_user(hi, &icode->code[pc + 1]))
if (get_user(lo, (__user u32 *)&icode->code[pc + 0]) ||
get_user(hi, (__user u32 *)&icode->code[pc + 1]))
return -EFAULT;
}
snd_emu10k1_efx_write(emu, pc + 0, lo);
@ -619,17 +619,21 @@ static int snd_emu10k1_code_peek(struct snd_emu10k1 *emu,
memset(icode->code_valid, 0, sizeof(icode->code_valid));
for (pc = 0; pc < (emu->audigy ? 2*1024 : 2*512); pc += 2) {
set_bit(pc / 2, icode->code_valid);
if (put_user(snd_emu10k1_efx_read(emu, pc + 0), &icode->code[pc + 0]))
if (put_user(snd_emu10k1_efx_read(emu, pc + 0),
(__user u32 *)&icode->code[pc + 0]))
return -EFAULT;
if (put_user(snd_emu10k1_efx_read(emu, pc + 1), &icode->code[pc + 1]))
if (put_user(snd_emu10k1_efx_read(emu, pc + 1),
(__user u32 *)&icode->code[pc + 1]))
return -EFAULT;
}
return 0;
}
static struct snd_emu10k1_fx8010_ctl *
snd_emu10k1_look_for_ctl(struct snd_emu10k1 *emu, struct emu10k1_ctl_elem_id *id)
snd_emu10k1_look_for_ctl(struct snd_emu10k1 *emu,
struct emu10k1_ctl_elem_id *_id)
{
struct snd_ctl_elem_id *id = (struct snd_ctl_elem_id *)_id;
struct snd_emu10k1_fx8010_ctl *ctl;
struct snd_kcontrol *kcontrol;
@ -672,41 +676,60 @@ static unsigned int *copy_tlv(const unsigned int __user *_tlv, bool in_kernel)
}
static int copy_gctl(struct snd_emu10k1 *emu,
struct snd_emu10k1_fx8010_control_gpr *gctl,
struct snd_emu10k1_fx8010_control_gpr __user *_gctl,
struct snd_emu10k1_fx8010_control_gpr *dst,
struct snd_emu10k1_fx8010_control_gpr *src,
int idx, bool in_kernel)
{
struct snd_emu10k1_fx8010_control_old_gpr __user *octl;
struct snd_emu10k1_fx8010_control_gpr __user *_src;
struct snd_emu10k1_fx8010_control_old_gpr *octl;
struct snd_emu10k1_fx8010_control_old_gpr __user *_octl;
_src = (struct snd_emu10k1_fx8010_control_gpr __user *)src;
if (emu->support_tlv) {
if (in_kernel)
memcpy(gctl, (__force void *)&_gctl[idx], sizeof(*gctl));
else if (copy_from_user(gctl, &_gctl[idx], sizeof(*gctl)))
*dst = src[idx];
else if (copy_from_user(dst, &_src[idx], sizeof(*src)))
return -EFAULT;
return 0;
}
octl = (struct snd_emu10k1_fx8010_control_old_gpr __user *)_gctl;
octl = (struct snd_emu10k1_fx8010_control_old_gpr *)src;
_octl = (struct snd_emu10k1_fx8010_control_old_gpr __user *)octl;
if (in_kernel)
memcpy(gctl, (__force void *)&octl[idx], sizeof(*octl));
else if (copy_from_user(gctl, &octl[idx], sizeof(*octl)))
memcpy(dst, &octl[idx], sizeof(*octl));
else if (copy_from_user(dst, &_octl[idx], sizeof(*octl)))
return -EFAULT;
gctl->tlv = NULL;
dst->tlv = NULL;
return 0;
}
static int copy_gctl_to_user(struct snd_emu10k1 *emu,
struct snd_emu10k1_fx8010_control_gpr __user *_gctl,
struct snd_emu10k1_fx8010_control_gpr *gctl,
struct snd_emu10k1_fx8010_control_gpr *dst,
struct snd_emu10k1_fx8010_control_gpr *src,
int idx)
{
struct snd_emu10k1_fx8010_control_gpr __user *_dst;
struct snd_emu10k1_fx8010_control_old_gpr __user *octl;
_dst = (struct snd_emu10k1_fx8010_control_gpr __user *)dst;
if (emu->support_tlv)
return copy_to_user(&_gctl[idx], gctl, sizeof(*gctl));
return copy_to_user(&_dst[idx], src, sizeof(*src));
octl = (struct snd_emu10k1_fx8010_control_old_gpr __user *)_gctl;
return copy_to_user(&octl[idx], gctl, sizeof(*octl));
octl = (struct snd_emu10k1_fx8010_control_old_gpr __user *)dst;
return copy_to_user(&octl[idx], src, sizeof(*octl));
}
static int copy_ctl_elem_id(const struct emu10k1_ctl_elem_id *list, int i,
struct emu10k1_ctl_elem_id *ret, bool in_kernel)
{
struct emu10k1_ctl_elem_id __user *_id =
(struct emu10k1_ctl_elem_id __user *)&list[i];
if (in_kernel)
*ret = list[i];
else if (copy_from_user(ret, _id, sizeof(*ret)))
return -EFAULT;
return 0;
}
static int snd_emu10k1_verify_controls(struct snd_emu10k1 *emu,
@ -714,17 +737,16 @@ static int snd_emu10k1_verify_controls(struct snd_emu10k1 *emu,
bool in_kernel)
{
unsigned int i;
struct emu10k1_ctl_elem_id __user *_id;
struct emu10k1_ctl_elem_id id;
struct snd_emu10k1_fx8010_control_gpr *gctl;
struct snd_ctl_elem_id *gctl_id;
int err;
_id = (__force struct emu10k1_ctl_elem_id __user *)icode->gpr_del_controls;
for (i = 0; i < icode->gpr_del_control_count; i++, _id++) {
if (in_kernel)
id = *(__force struct emu10k1_ctl_elem_id *)_id;
else if (copy_from_user(&id, _id, sizeof(id)))
return -EFAULT;
for (i = 0; i < icode->gpr_del_control_count; i++) {
err = copy_ctl_elem_id(icode->gpr_del_controls, i, &id,
in_kernel);
if (err < 0)
return err;
if (snd_emu10k1_look_for_ctl(emu, &id) == NULL)
return -ENOENT;
}
@ -740,16 +762,16 @@ static int snd_emu10k1_verify_controls(struct snd_emu10k1 *emu,
}
if (snd_emu10k1_look_for_ctl(emu, &gctl->id))
continue;
gctl_id = (struct snd_ctl_elem_id *)&gctl->id;
down_read(&emu->card->controls_rwsem);
if (snd_ctl_find_id(emu->card,
(struct snd_ctl_elem_id *)&gctl->id)) {
if (snd_ctl_find_id(emu->card, gctl_id)) {
up_read(&emu->card->controls_rwsem);
err = -EEXIST;
goto __error;
}
up_read(&emu->card->controls_rwsem);
if (gctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER &&
gctl->id.iface != SNDRV_CTL_ELEM_IFACE_PCM) {
if (gctl_id->iface != SNDRV_CTL_ELEM_IFACE_MIXER &&
gctl_id->iface != SNDRV_CTL_ELEM_IFACE_PCM) {
err = -EINVAL;
goto __error;
}
@ -784,6 +806,7 @@ static int snd_emu10k1_add_controls(struct snd_emu10k1 *emu,
{
unsigned int i, j;
struct snd_emu10k1_fx8010_control_gpr *gctl;
struct snd_ctl_elem_id *gctl_id;
struct snd_emu10k1_fx8010_ctl *ctl, *nctl;
struct snd_kcontrol_new knew;
struct snd_kcontrol *kctl;
@ -804,24 +827,25 @@ static int snd_emu10k1_add_controls(struct snd_emu10k1 *emu,
err = -EFAULT;
goto __error;
}
if (gctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER &&
gctl->id.iface != SNDRV_CTL_ELEM_IFACE_PCM) {
gctl_id = (struct snd_ctl_elem_id *)&gctl->id;
if (gctl_id->iface != SNDRV_CTL_ELEM_IFACE_MIXER &&
gctl_id->iface != SNDRV_CTL_ELEM_IFACE_PCM) {
err = -EINVAL;
goto __error;
}
if (! gctl->id.name[0]) {
if (!*gctl_id->name) {
err = -EINVAL;
goto __error;
}
ctl = snd_emu10k1_look_for_ctl(emu, &gctl->id);
memset(&knew, 0, sizeof(knew));
knew.iface = gctl->id.iface;
knew.name = gctl->id.name;
knew.index = gctl->id.index;
knew.device = gctl->id.device;
knew.subdevice = gctl->id.subdevice;
knew.iface = gctl_id->iface;
knew.name = gctl_id->name;
knew.index = gctl_id->index;
knew.device = gctl_id->device;
knew.subdevice = gctl_id->subdevice;
knew.info = snd_emu10k1_gpr_ctl_info;
knew.tlv.p = copy_tlv((__force const unsigned int __user *)gctl->tlv, in_kernel);
knew.tlv.p = copy_tlv((const unsigned int __user *)gctl->tlv, in_kernel);
if (knew.tlv.p)
knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ;
@ -878,17 +902,15 @@ static int snd_emu10k1_del_controls(struct snd_emu10k1 *emu,
{
unsigned int i;
struct emu10k1_ctl_elem_id id;
struct emu10k1_ctl_elem_id __user *_id;
struct snd_emu10k1_fx8010_ctl *ctl;
struct snd_card *card = emu->card;
int err;
_id = (__force struct emu10k1_ctl_elem_id __user *)icode->gpr_del_controls;
for (i = 0; i < icode->gpr_del_control_count; i++, _id++) {
if (in_kernel)
id = *(__force struct emu10k1_ctl_elem_id *)_id;
else if (copy_from_user(&id, _id, sizeof(id)))
return -EFAULT;
for (i = 0; i < icode->gpr_del_control_count; i++) {
err = copy_ctl_elem_id(icode->gpr_del_controls, i, &id,
in_kernel);
if (err < 0)
return err;
down_write(&card->controls_rwsem);
ctl = snd_emu10k1_look_for_ctl(emu, &id);
if (ctl)
@ -917,7 +939,7 @@ static int snd_emu10k1_list_controls(struct snd_emu10k1 *emu,
i < icode->gpr_list_control_count) {
memset(gctl, 0, sizeof(*gctl));
id = &ctl->kcontrol->id;
gctl->id.iface = id->iface;
gctl->id.iface = (__force int)id->iface;
strlcpy(gctl->id.name, id->name, sizeof(gctl->id.name));
gctl->id.index = id->index;
gctl->id.device = id->device;
@ -1095,7 +1117,7 @@ static void
snd_emu10k1_init_mono_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
const char *name, int gpr, int defval)
{
ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
ctl->id.iface = (__force int)SNDRV_CTL_ELEM_IFACE_MIXER;
strcpy(ctl->id.name, name);
ctl->vcount = ctl->count = 1;
ctl->gpr[0] = gpr + 0; ctl->value[0] = defval;
@ -1116,7 +1138,7 @@ static void
snd_emu10k1_init_stereo_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
const char *name, int gpr, int defval)
{
ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
ctl->id.iface = (__force int)SNDRV_CTL_ELEM_IFACE_MIXER;
strcpy(ctl->id.name, name);
ctl->vcount = ctl->count = 2;
ctl->gpr[0] = gpr + 0; ctl->value[0] = defval;
@ -1138,7 +1160,7 @@ static void
snd_emu10k1_init_mono_onoff_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
const char *name, int gpr, int defval)
{
ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
ctl->id.iface = (__force int)SNDRV_CTL_ELEM_IFACE_MIXER;
strcpy(ctl->id.name, name);
ctl->vcount = ctl->count = 1;
ctl->gpr[0] = gpr + 0; ctl->value[0] = defval;
@ -1151,7 +1173,7 @@ static void
snd_emu10k1_init_stereo_onoff_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
const char *name, int gpr, int defval)
{
ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
ctl->id.iface = (__force int)SNDRV_CTL_ELEM_IFACE_MIXER;
strcpy(ctl->id.name, name);
ctl->vcount = ctl->count = 2;
ctl->gpr[0] = gpr + 0; ctl->value[0] = defval;
@ -1204,8 +1226,8 @@ static int _snd_emu10k1_audigy_init_efx(struct snd_emu10k1 *emu)
if (!icode)
return err;
icode->gpr_map = (u_int32_t __user *) kcalloc(512 + 256 + 256 + 2 * 1024,
sizeof(u_int32_t), GFP_KERNEL);
icode->gpr_map = kcalloc(512 + 256 + 256 + 2 * 1024,
sizeof(u_int32_t), GFP_KERNEL);
if (!icode->gpr_map)
goto __err_gpr;
controls = kcalloc(SND_EMU10K1_GPR_CONTROLS,
@ -1213,7 +1235,7 @@ static int _snd_emu10k1_audigy_init_efx(struct snd_emu10k1 *emu)
if (!controls)
goto __err_ctrls;
gpr_map = (u32 __force *)icode->gpr_map;
gpr_map = icode->gpr_map;
icode->tram_data_map = icode->gpr_map + 512;
icode->tram_addr_map = icode->tram_data_map + 256;
@ -1468,7 +1490,7 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))
ctl = &controls[nctl + 0];
ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
ctl->id.iface = (__force int)SNDRV_CTL_ELEM_IFACE_MIXER;
strcpy(ctl->id.name, "Tone Control - Bass");
ctl->vcount = 2;
ctl->count = 10;
@ -1477,7 +1499,7 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))
ctl->value[0] = ctl->value[1] = 20;
ctl->translation = EMU10K1_GPR_TRANSLATION_BASS;
ctl = &controls[nctl + 1];
ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
ctl->id.iface = (__force int)SNDRV_CTL_ELEM_IFACE_MIXER;
strcpy(ctl->id.name, "Tone Control - Treble");
ctl->vcount = 2;
ctl->count = 10;
@ -1758,7 +1780,7 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))
A_OP(icode, &ptr, 0x0f, 0xc0, 0xc0, 0xcf, 0xc0);
icode->gpr_add_control_count = nctl;
icode->gpr_add_controls = (struct snd_emu10k1_fx8010_control_gpr __user *)controls;
icode->gpr_add_controls = controls;
emu->support_tlv = 1; /* support TLV */
err = snd_emu10k1_icode_poke(emu, icode, true);
emu->support_tlv = 0; /* clear again */
@ -1766,7 +1788,7 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))
__err:
kfree(controls);
__err_ctrls:
kfree((void __force *)icode->gpr_map);
kfree(icode->gpr_map);
__err_gpr:
kfree(icode);
return err;
@ -1839,8 +1861,8 @@ static int _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
if (!icode)
return err;
icode->gpr_map = (u_int32_t __user *) kcalloc(256 + 160 + 160 + 2 * 512,
sizeof(u_int32_t), GFP_KERNEL);
icode->gpr_map = kcalloc(256 + 160 + 160 + 2 * 512,
sizeof(u_int32_t), GFP_KERNEL);
if (!icode->gpr_map)
goto __err_gpr;
@ -1854,7 +1876,7 @@ static int _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
if (!ipcm)
goto __err_ipcm;
gpr_map = (u32 __force *)icode->gpr_map;
gpr_map = icode->gpr_map;
icode->tram_data_map = icode->gpr_map + 256;
icode->tram_addr_map = icode->tram_data_map + 160;
@ -2188,7 +2210,7 @@ static int _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
OP(icode, &ptr, iACC3, GPR(playback + SND_EMU10K1_PLAYBACK_CHANNELS + 5), GPR(playback + 5), C_00000000, C_00000000); /* LFE */
ctl = &controls[i + 0];
ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
ctl->id.iface = (__force int)SNDRV_CTL_ELEM_IFACE_MIXER;
strcpy(ctl->id.name, "Tone Control - Bass");
ctl->vcount = 2;
ctl->count = 10;
@ -2198,7 +2220,7 @@ static int _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
ctl->tlv = snd_emu10k1_bass_treble_db_scale;
ctl->translation = EMU10K1_GPR_TRANSLATION_BASS;
ctl = &controls[i + 1];
ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
ctl->id.iface = (__force int)SNDRV_CTL_ELEM_IFACE_MIXER;
strcpy(ctl->id.name, "Tone Control - Treble");
ctl->vcount = 2;
ctl->count = 10;
@ -2384,7 +2406,7 @@ static int _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
if ((err = snd_emu10k1_fx8010_tram_setup(emu, ipcm->buffer_size)) < 0)
goto __err;
icode->gpr_add_control_count = i;
icode->gpr_add_controls = (struct snd_emu10k1_fx8010_control_gpr __user *)controls;
icode->gpr_add_controls = controls;
emu->support_tlv = 1; /* support TLV */
err = snd_emu10k1_icode_poke(emu, icode, true);
emu->support_tlv = 0; /* clear again */
@ -2395,7 +2417,7 @@ __err:
__err_ipcm:
kfree(controls);
__err_ctrls:
kfree((void __force *)icode->gpr_map);
kfree(icode->gpr_map);
__err_gpr:
kfree(icode);
return err;