[PATCH v1 ] ALSA: core: memalloc: add page alignment for iram

Lars-Peter Clausen lars at metafoo.de
Thu Dec 17 10:43:45 CET 2020


On 12/17/20 5:15 PM, Robin Gong wrote:
> Since mmap for userspace is based on page alignment, add page alignment
> for iram alloc from pool, otherwise, some good data located in the same
> page of dmab->area maybe touched wrongly by userspace like pulseaudio.
>
I wonder, do we also have to align size to be a multiple of PAGE_SIZE to 
avoid leaking unrelated data?



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