On Mon, 12 Jul 2021 12:05:40 +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(). > > > >From 9c3a4ffca82a0106cd858db8be29945cfbcc9952 Mon Sep 17 00:00:00 2001 > From: Alan Young <consult.awy@xxxxxxxxx> > Date: Fri, 9 Jul 2021 09:48:54 +0100 > Subject: [PATCH] ALSA: core: Call substream ack() method upon compat mmap > commit > > 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> Thanks, applied. Takashi
