https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/au88x0?id=54a96dadaa2bbe81006c66447517b57534d80e7f
Before this patch, period_size can be as low as 1 frames,
difference of current page and last page will be 2 or 3 instead of 1
In theory, you should not see the delta 2 or 3 virt, real message after this patch
https:/ /git.kernel. org/cgit/ linux/kernel/ git/tiwai/ sound.git/ commit/ sound/pci/ au88x0? id=54a96dadaa2b be81006c6644751 7b57534d80e7f
Before this patch, period_size can be as low as 1 frames,
difference of current page and last page will be 2 or 3 instead of 1
In theory, you should not see the delta 2 or 3 virt, real message after this patch