diff options
| author | Takashi Iwai <tiwai@suse.de> | 2023-08-15 21:01:36 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-08-18 12:19:19 +0200 |
| commit | 6c0217b11066b9bcd6d8f1f8bd11c0610e536e04 (patch) | |
| tree | 80cb7c6fddede80dad94fc2b8d87682a0b3fbf5b | |
| parent | 205d3e030a02b18a6bc1ca590965871a803163f2 (diff) | |
ALSA: pcm: Drop obsoleted PCM copy_user and copy_kernel ops
Finally all users have been converted to the new PCM copy ops, let's
drop the obsoleted copy_kernel and copy_user ops completely.
Link: https://lore.kernel.org/r/20230815190136.8987-26-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | include/sound/pcm.h | 5 | ||||
| -rw-r--r-- | sound/core/pcm_lib.c | 18 | ||||
| -rw-r--r-- | sound/core/pcm_native.c | 2 |
3 files changed, 2 insertions, 23 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 1f6df47eb500..2a815373dac1 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -71,11 +71,6 @@ struct snd_pcm_ops { unsigned long pos, unsigned long bytes); int (*copy)(struct snd_pcm_substream *substream, int channel, unsigned long pos, struct iov_iter *iter, unsigned long bytes); - int (*copy_user)(struct snd_pcm_substream *substream, int channel, - unsigned long pos, void __user *buf, - unsigned long bytes); - int (*copy_kernel)(struct snd_pcm_substream *substream, int channel, - unsigned long pos, void *buf, unsigned long bytes); struct page *(*page)(struct snd_pcm_substream *substream, unsigned long offset); int (*mmap)(struct snd_pcm_substream *substream, struct vm_area_struct *vma); diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 3303914c58ea..4859fb1caec9 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -2031,19 +2031,6 @@ static int default_read_copy(struct snd_pcm_substream *substream, return 0; } -/* a wrapper for calling old copy_kernel or copy_user ops */ -static int call_old_copy(struct snd_pcm_substream *substream, - int channel, unsigned long hwoff, - struct iov_iter *iter, unsigned long bytes) -{ - if (iov_iter_is_kvec(iter)) - return substream->ops->copy_kernel(substream, channel, hwoff, - iter_iov_addr(iter), bytes); - else - return substream->ops->copy_user(substream, channel, hwoff, - iter_iov_addr(iter), bytes); -} - /* call transfer with the filled iov_iter */ static int do_transfer(struct snd_pcm_substream *substream, int c, unsigned long hwoff, void *data, unsigned long bytes, @@ -2147,7 +2134,7 @@ static int pcm_sanity_check(struct snd_pcm_substream *substream) if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; runtime = substream->runtime; - if (snd_BUG_ON(!substream->ops->copy && !substream->ops->copy_user && !runtime->dma_area)) + if (snd_BUG_ON(!substream->ops->copy && !runtime->dma_area)) return -EINVAL; if (runtime->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; @@ -2255,9 +2242,6 @@ snd_pcm_sframes_t __snd_pcm_lib_xfer(struct snd_pcm_substream *substream, } else { if (substream->ops->copy) transfer = substream->ops->copy; - else if ((in_kernel && substream->ops->copy_kernel) || - (!in_kernel && substream->ops->copy_user)) - transfer = call_old_copy; else transfer = is_playback ? default_write_copy : default_read_copy; diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 34efd4d198d6..bd9ddf412b46 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -809,7 +809,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream, runtime->boundary *= 2; /* clear the buffer for avoiding possible kernel info leaks */ - if (runtime->dma_area && !substream->ops->copy && !substream->ops->copy_user) { + if (runtime->dma_area && !substream->ops->copy) { size_t size = runtime->dma_bytes; if (runtime->info & SNDRV_PCM_INFO_MMAP) |