On Fri, 09 Jul 2021 10:53:42 +0200, Alan Young wrote: > > If a 32-bit application is being used with a 64-bit kernel and is using > the mmap mechanism to write data, then the SNDRV_PCM_IOCTL_SYNC_PTR > ioctl results in calling snd_pcm_ioctl_sync_ptr_compat(). Make this use > pcm_lib_apply_appl_ptr() so that the substream's ack() method, if > defined, is called. > > The snd_pcm_sync_ptr() function, used in the 64-bit ioctl case, already > uses snd_pcm_ioctl_sync_ptr_compat(). > > Signed-off-by: Alan Young <consult.awy@xxxxxxxxx> A good catch. But unfortunately the posted patch couldn't be applied cleanly. Could you check your MUA setup and resubmit? thanks, Takashi