The recent sound/emu10k1.h uapi header change by the commit 2e4688676392 ("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: 2e4688676392 ("ALSA: emu10k1: Make uapi/emu10k1.h compilable again") Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/pci/emu10k1/emufx.c | 180 ++++++++++++++++++++++++++-------------------- 1 file changed, 101 insertions(+), 79 deletions(-)
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c index 6b7ff4a94800..4e76ed0e91d5 100644 --- a/sound/pci/emu10k1/emufx.c +++ b/sound/pci/emu10k1/emufx.c @@ -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 @@ static int _snd_emu10k1_init_efx(struct snd_emu10k1 *emu) __err_ipcm: kfree(controls); __err_ctrls: - kfree((void __force *)icode->gpr_map); + kfree(icode->gpr_map); __err_gpr: kfree(icode); return err;