compat_ioctl: remove translation for sound ioctls
The SNDCTL_* and SOUND_* commands are the old OSS user interface. I checked all the sound ioctl commands listed in fs/compat_ioctl.c to see if we still need the translation handlers. Here is what I found: - sound/oss/ is (almost) gone from the kernel, this is what actually needed all the translations - The ALSA emulation for OSS correctly handles all compat_ioctl commands already. - sound/oss/dmasound/ is the last holdout of the original OSS code, this is only used on arch/m68k, which has no 64-bit mode and hence needs no compat handlers - arch/um/drivers/hostaudio_kern.c may run in 64-bit mode with 32-bit x86 user space underneath it. This rare corner case is the only one that still needs the compat handlers. By adding a simple redirect of .compat_ioctl to .unlocked_ioctl in the UML driver, we can remove all the COMPATIBLE_IOCTL() annotations without a change in functionality. For completeness, I'm adding the same thing to the dmasound file, knowing that it makes no difference. The compat_ioctl list contains one comment about SNDCTL_DSP_MAPINBUF and SNDCTL_DSP_MAPOUTBUF, which actually would need a translation handler if implemented. However, the native implementation just returns -EINVAL, so we don't care. Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>alistair/sunxi64-5.5-dsi
Arnd Bergmann
parent
54b5b60a14
commit
2022ca0a94
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@ -298,6 +298,7 @@ static const struct file_operations hostaudio_fops = {
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.write = hostaudio_write,
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.poll = hostaudio_poll,
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.unlocked_ioctl = hostaudio_ioctl,
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.compat_ioctl = compat_ptr_ioctl,
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.mmap = NULL,
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.open = hostaudio_open,
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.release = hostaudio_release,
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@ -51,8 +51,6 @@
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#include <linux/uaccess.h>
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#include <linux/watchdog.h>
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#include <linux/soundcard.h>
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#include <linux/hiddev.h>
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@ -458,162 +456,6 @@ COMPATIBLE_IOCTL(PPPIOCDISCONN)
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COMPATIBLE_IOCTL(PPPIOCATTCHAN)
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COMPATIBLE_IOCTL(PPPIOCGCHAN)
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COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS)
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/* Big A */
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/* sparc only */
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/* Big Q for sound/OSS */
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COMPATIBLE_IOCTL(SNDCTL_SEQ_RESET)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_SYNC)
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COMPATIBLE_IOCTL(SNDCTL_SYNTH_INFO)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_CTRLRATE)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_GETOUTCOUNT)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_GETINCOUNT)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_PERCMODE)
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COMPATIBLE_IOCTL(SNDCTL_FM_LOAD_INSTR)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_TESTMIDI)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_RESETSAMPLES)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_NRSYNTHS)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_NRMIDIS)
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COMPATIBLE_IOCTL(SNDCTL_MIDI_INFO)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_THRESHOLD)
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COMPATIBLE_IOCTL(SNDCTL_SYNTH_MEMAVL)
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COMPATIBLE_IOCTL(SNDCTL_FM_4OP_ENABLE)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_PANIC)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_OUTOFBAND)
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COMPATIBLE_IOCTL(SNDCTL_SEQ_GETTIME)
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COMPATIBLE_IOCTL(SNDCTL_SYNTH_ID)
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COMPATIBLE_IOCTL(SNDCTL_SYNTH_CONTROL)
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COMPATIBLE_IOCTL(SNDCTL_SYNTH_REMOVESAMPLE)
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/* Big T for sound/OSS */
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COMPATIBLE_IOCTL(SNDCTL_TMR_TIMEBASE)
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COMPATIBLE_IOCTL(SNDCTL_TMR_START)
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COMPATIBLE_IOCTL(SNDCTL_TMR_STOP)
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COMPATIBLE_IOCTL(SNDCTL_TMR_CONTINUE)
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COMPATIBLE_IOCTL(SNDCTL_TMR_TEMPO)
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COMPATIBLE_IOCTL(SNDCTL_TMR_SOURCE)
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COMPATIBLE_IOCTL(SNDCTL_TMR_METRONOME)
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COMPATIBLE_IOCTL(SNDCTL_TMR_SELECT)
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/* Little m for sound/OSS */
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COMPATIBLE_IOCTL(SNDCTL_MIDI_PRETIME)
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COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUMODE)
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COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUCMD)
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/* Big P for sound/OSS */
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COMPATIBLE_IOCTL(SNDCTL_DSP_RESET)
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COMPATIBLE_IOCTL(SNDCTL_DSP_SYNC)
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COMPATIBLE_IOCTL(SNDCTL_DSP_SPEED)
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COMPATIBLE_IOCTL(SNDCTL_DSP_STEREO)
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COMPATIBLE_IOCTL(SNDCTL_DSP_GETBLKSIZE)
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COMPATIBLE_IOCTL(SNDCTL_DSP_CHANNELS)
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COMPATIBLE_IOCTL(SOUND_PCM_WRITE_FILTER)
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COMPATIBLE_IOCTL(SNDCTL_DSP_POST)
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COMPATIBLE_IOCTL(SNDCTL_DSP_SUBDIVIDE)
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COMPATIBLE_IOCTL(SNDCTL_DSP_SETFRAGMENT)
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COMPATIBLE_IOCTL(SNDCTL_DSP_GETFMTS)
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COMPATIBLE_IOCTL(SNDCTL_DSP_SETFMT)
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COMPATIBLE_IOCTL(SNDCTL_DSP_GETOSPACE)
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COMPATIBLE_IOCTL(SNDCTL_DSP_GETISPACE)
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COMPATIBLE_IOCTL(SNDCTL_DSP_NONBLOCK)
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COMPATIBLE_IOCTL(SNDCTL_DSP_GETCAPS)
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COMPATIBLE_IOCTL(SNDCTL_DSP_GETTRIGGER)
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COMPATIBLE_IOCTL(SNDCTL_DSP_SETTRIGGER)
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COMPATIBLE_IOCTL(SNDCTL_DSP_GETIPTR)
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COMPATIBLE_IOCTL(SNDCTL_DSP_GETOPTR)
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/* SNDCTL_DSP_MAPINBUF, XXX needs translation */
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/* SNDCTL_DSP_MAPOUTBUF, XXX needs translation */
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COMPATIBLE_IOCTL(SNDCTL_DSP_SETSYNCRO)
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COMPATIBLE_IOCTL(SNDCTL_DSP_SETDUPLEX)
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COMPATIBLE_IOCTL(SNDCTL_DSP_GETODELAY)
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COMPATIBLE_IOCTL(SNDCTL_DSP_PROFILE)
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COMPATIBLE_IOCTL(SOUND_PCM_READ_RATE)
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COMPATIBLE_IOCTL(SOUND_PCM_READ_CHANNELS)
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COMPATIBLE_IOCTL(SOUND_PCM_READ_BITS)
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COMPATIBLE_IOCTL(SOUND_PCM_READ_FILTER)
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/* Big C for sound/OSS */
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COMPATIBLE_IOCTL(SNDCTL_COPR_RESET)
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COMPATIBLE_IOCTL(SNDCTL_COPR_LOAD)
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COMPATIBLE_IOCTL(SNDCTL_COPR_RDATA)
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COMPATIBLE_IOCTL(SNDCTL_COPR_RCODE)
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COMPATIBLE_IOCTL(SNDCTL_COPR_WDATA)
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COMPATIBLE_IOCTL(SNDCTL_COPR_WCODE)
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COMPATIBLE_IOCTL(SNDCTL_COPR_RUN)
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COMPATIBLE_IOCTL(SNDCTL_COPR_HALT)
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COMPATIBLE_IOCTL(SNDCTL_COPR_SENDMSG)
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COMPATIBLE_IOCTL(SNDCTL_COPR_RCVMSG)
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/* Big M for sound/OSS */
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_BASS)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_TREBLE)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_SYNTH)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_PCM)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_SPEAKER)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_MIC)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_CD)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_IMIX)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_ALTPCM)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECLEV)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_IGAIN)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_OGAIN)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE1)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE2)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE3)
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COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL1))
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COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL2))
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COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL3))
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COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEIN))
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COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEOUT))
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COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_VIDEO))
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COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_RADIO))
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COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_MONITOR))
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_MUTE)
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/* SOUND_MIXER_READ_ENHANCE, same value as READ_MUTE */
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/* SOUND_MIXER_READ_LOUD, same value as READ_MUTE */
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECSRC)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_DEVMASK)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECMASK)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_STEREODEVS)
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COMPATIBLE_IOCTL(SOUND_MIXER_READ_CAPS)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_VOLUME)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_BASS)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_TREBLE)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SYNTH)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_PCM)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SPEAKER)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MIC)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_CD)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IMIX)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_ALTPCM)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECLEV)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IGAIN)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_OGAIN)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE1)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE2)
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE3)
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COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL1))
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COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL2))
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COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL3))
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COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEIN))
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COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEOUT))
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COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_VIDEO))
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COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_RADIO))
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COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_MONITOR))
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MUTE)
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/* SOUND_MIXER_WRITE_ENHANCE, same value as WRITE_MUTE */
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/* SOUND_MIXER_WRITE_LOUD, same value as WRITE_MUTE */
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COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECSRC)
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COMPATIBLE_IOCTL(SOUND_MIXER_INFO)
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COMPATIBLE_IOCTL(SOUND_OLD_MIXER_INFO)
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COMPATIBLE_IOCTL(SOUND_MIXER_ACCESS)
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COMPATIBLE_IOCTL(SOUND_MIXER_AGC)
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COMPATIBLE_IOCTL(SOUND_MIXER_3DSE)
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COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE1)
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COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE2)
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COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE3)
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COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE4)
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COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5)
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COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS)
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COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS)
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COMPATIBLE_IOCTL(OSS_GETVERSION)
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/* Raw devices */
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COMPATIBLE_IOCTL(RAW_SETBIND)
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COMPATIBLE_IOCTL(RAW_GETBIND)
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@ -2717,6 +2717,10 @@ static long snd_pcm_oss_ioctl(struct file *file, unsigned int cmd, unsigned long
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static long snd_pcm_oss_ioctl_compat(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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/*
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* Everything is compatbile except SNDCTL_DSP_MAPINBUF/SNDCTL_DSP_MAPOUTBUF,
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* which are not implemented for the native case either
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*/
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return snd_pcm_oss_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
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}
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#else
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@ -384,6 +384,7 @@ static const struct file_operations mixer_fops =
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.owner = THIS_MODULE,
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.llseek = no_llseek,
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.unlocked_ioctl = mixer_unlocked_ioctl,
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.compat_ioctl = compat_ptr_ioctl,
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.open = mixer_open,
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.release = mixer_release,
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};
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@ -1167,6 +1168,7 @@ static const struct file_operations sq_fops =
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.write = sq_write,
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.poll = sq_poll,
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.unlocked_ioctl = sq_unlocked_ioctl,
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.compat_ioctl = compat_ptr_ioctl,
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.open = sq_open,
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.release = sq_release,
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};
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