Recently we updated the content in alsa-lib uapi header files by just copying from the latest Linus kernel uapi/*.h, and noticed that it broke the build of some alsa-tools programs. The reason is that we used to have a modified version in the past, so that the program can be built without referring to the unexported stuff like snd_ctl_elem_id or __user prefix.
This patch attempts to restore that, i.e. dropping the stuff that can't be referred in the user-space. For adapting the changes in uapi/emu10k1.h, the emu10k1 driver code is also slightly modified. Most of changes are pointer cast.
Signed-off-by: Takashi Iwai tiwai@suse.de --- include/uapi/sound/emu10k1.h | 38 ++++++++++++++++++++++++++------------ sound/pci/emu10k1/emufx.c | 26 ++++++++++++++------------ 2 files changed, 40 insertions(+), 24 deletions(-)
diff --git a/include/uapi/sound/emu10k1.h b/include/uapi/sound/emu10k1.h index 042c5a6f16ee..c1150e4d0231 100644 --- a/include/uapi/sound/emu10k1.h +++ b/include/uapi/sound/emu10k1.h @@ -23,9 +23,6 @@ #ifndef _UAPI__SOUND_EMU10K1_H #define _UAPI__SOUND_EMU10K1_H
-#include <linux/types.h> -#include <sound/asound.h> - /* * ---- FX8010 ---- */ @@ -282,8 +279,22 @@ struct snd_emu10k1_fx8010_info { #define EMU10K1_GPR_TRANSLATION_TREBLE 3 #define EMU10K1_GPR_TRANSLATION_ONOFF 4
+enum emu10k1_ctl_elem_iface { + EMU10K1_CTL_ELEM_IFACE_MIXER = 2, /* virtual mixer device */ + EMU10K1_CTL_ELEM_IFACE_PCM = 3, /* PCM device */ +}; + +struct emu10k1_ctl_elem_id { + unsigned int pad; /* don't use */ + int iface; /* interface identifier */ + unsigned int device; /* device/client number */ + unsigned int subdevice; /* subdevice (substream) number */ + unsigned char name[44]; /* ASCII name of item */ + unsigned int index; /* index of item */ +}; + struct snd_emu10k1_fx8010_control_gpr { - struct snd_ctl_elem_id id; /* full control ID definition */ + struct emu10k1_ctl_elem_id id; /* full control ID definition */ unsigned int vcount; /* visible count */ unsigned int count; /* count of GPR (1..16) */ unsigned short gpr[32]; /* GPR number(s) */ @@ -296,7 +307,7 @@ struct snd_emu10k1_fx8010_control_gpr {
/* old ABI without TLV support */ struct snd_emu10k1_fx8010_control_old_gpr { - struct snd_ctl_elem_id id; + struct emu10k1_ctl_elem_id id; unsigned int vcount; unsigned int count; unsigned short gpr[32]; @@ -310,24 +321,24 @@ struct snd_emu10k1_fx8010_code { char name[128];
__EMU10K1_DECLARE_BITMAP(gpr_valid, 0x200); /* bitmask of valid initializers */ - __u32 __user *gpr_map; /* initializers */ + __u32 *gpr_map; /* initializers */
unsigned int gpr_add_control_count; /* count of GPR controls to add/replace */ - struct snd_emu10k1_fx8010_control_gpr __user *gpr_add_controls; /* GPR controls to add/replace */ + struct snd_emu10k1_fx8010_control_gpr *gpr_add_controls; /* GPR controls to add/replace */
unsigned int gpr_del_control_count; /* count of GPR controls to remove */ - struct snd_ctl_elem_id __user *gpr_del_controls; /* IDs of GPR controls to remove */ + struct emu10k1_ctl_elem_id *gpr_del_controls; /* IDs of GPR controls to remove */
unsigned int gpr_list_control_count; /* count of GPR controls to list */ unsigned int gpr_list_control_total; /* total count of GPR controls */ - struct snd_emu10k1_fx8010_control_gpr __user *gpr_list_controls; /* listed GPR controls */ + struct snd_emu10k1_fx8010_control_gpr *gpr_list_controls; /* listed GPR controls */
__EMU10K1_DECLARE_BITMAP(tram_valid, 0x100); /* bitmask of valid initializers */ - __u32 __user *tram_data_map; /* data initializers */ - __u32 __user *tram_addr_map; /* map initializers */ + __u32 *tram_data_map; /* data initializers */ + __u32 *tram_addr_map; /* map initializers */
__EMU10K1_DECLARE_BITMAP(code_valid, 1024); /* bitmask of valid instructions */ - __u32 __user *code; /* one instruction - 64 bits */ + __u32 *code; /* one instruction - 64 bits */ };
struct snd_emu10k1_fx8010_tram { @@ -371,11 +382,14 @@ struct snd_emu10k1_fx8010_pcm_rec { #define SNDRV_EMU10K1_IOCTL_SINGLE_STEP _IOW ('H', 0x83, int) #define SNDRV_EMU10K1_IOCTL_DBG_READ _IOR ('H', 0x84, int)
+#ifndef __KERNEL__ /* typedefs for compatibility to user-space */ typedef struct snd_emu10k1_fx8010_info emu10k1_fx8010_info_t; typedef struct snd_emu10k1_fx8010_control_gpr emu10k1_fx8010_control_gpr_t; typedef struct snd_emu10k1_fx8010_code emu10k1_fx8010_code_t; typedef struct snd_emu10k1_fx8010_tram emu10k1_fx8010_tram_t; typedef struct snd_emu10k1_fx8010_pcm_rec emu10k1_fx8010_pcm_t; +typedef struct emu10k1_ctl_elem_id emu10k1_ctl_elem_id_t; +#endif
#endif /* _UAPI__SOUND_EMU10K1_H */ diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c index a31adecfe608..e0e076a9c321 100644 --- a/sound/pci/emu10k1/emufx.c +++ b/sound/pci/emu10k1/emufx.c @@ -628,7 +628,7 @@ static int snd_emu10k1_code_peek(struct snd_emu10k1 *emu, }
static struct snd_emu10k1_fx8010_ctl * -snd_emu10k1_look_for_ctl(struct snd_emu10k1 *emu, struct snd_ctl_elem_id *id) +snd_emu10k1_look_for_ctl(struct snd_emu10k1 *emu, struct emu10k1_ctl_elem_id *id) { struct snd_emu10k1_fx8010_ctl *ctl; struct snd_kcontrol *kcontrol; @@ -714,15 +714,15 @@ static int snd_emu10k1_verify_controls(struct snd_emu10k1 *emu, bool in_kernel) { unsigned int i; - struct snd_ctl_elem_id __user *_id; - struct snd_ctl_elem_id id; + struct emu10k1_ctl_elem_id __user *_id; + struct emu10k1_ctl_elem_id id; struct snd_emu10k1_fx8010_control_gpr *gctl; int err; - for (i = 0, _id = icode->gpr_del_controls; - i < icode->gpr_del_control_count; i++, _id++) { + _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 snd_ctl_elem_id *)_id; + id = *(__force struct emu10k1_ctl_elem_id *)_id; else if (copy_from_user(&id, _id, sizeof(id))) return -EFAULT; if (snd_emu10k1_look_for_ctl(emu, &id) == NULL) @@ -741,7 +741,8 @@ static int snd_emu10k1_verify_controls(struct snd_emu10k1 *emu, if (snd_emu10k1_look_for_ctl(emu, &gctl->id)) continue; down_read(&emu->card->controls_rwsem); - if (snd_ctl_find_id(emu->card, &gctl->id) != NULL) { + if (snd_ctl_find_id(emu->card, + (struct snd_ctl_elem_id *)&gctl->id)) { up_read(&emu->card->controls_rwsem); err = -EEXIST; goto __error; @@ -876,15 +877,16 @@ static int snd_emu10k1_del_controls(struct snd_emu10k1 *emu, bool in_kernel) { unsigned int i; - struct snd_ctl_elem_id id; - struct snd_ctl_elem_id __user *_id; + 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; - for (i = 0, _id = icode->gpr_del_controls; - i < icode->gpr_del_control_count; i++, _id++) { + _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 snd_ctl_elem_id *)_id; + id = *(__force struct emu10k1_ctl_elem_id *)_id; else if (copy_from_user(&id, _id, sizeof(id))) return -EFAULT; down_write(&card->controls_rwsem);