[5.14 regression] "ALSA: core: Add continuous and vmalloc mmap ops" breaks Intel SST audio

[Takashi Iwai]

On Sun, 01 Aug 2021 12:27:28 +0200,
Hans de Goede wrote:
> 
> Hi,
> 
> On 7/31/21 10:10 AM, Takashi Iwai wrote:
> > On Fri, 30 Jul 2021 22:04:00 +0200,
> > Hans de Goede wrote:
> >>
> >> Hi All;,
> >>
> >> As discussed in the "5.14 regression, Intel SST (BYT) audio no longer works" thread,
> >> audio on X86 devices using the Intel SST driver no longer works with 5.14.
> >>
> >> After poking at this for a while I've found the culprit:
> >> 30b7ba6972d5 ("ALSA: core: Add continuous and vmalloc mmap ops")
> >>
> >> If I revert that single commit then everything works fine again with 5.14.
> > 
> > Does the patch below fix the problem?
> 
> Yes that seems to fix things, thank you.

Great, I'll cook up and submit the proper patch.


thanks,

Takashi