Re: 答复: [PATCH] iommu/intel: Prevent variable pollution in cache_tag_flush_range()

[Baolu Lu]

On 6/17/2026 3:51 PM, Li,Rongqing wrote:
> > From: Li RongQing<lirongqing@xxxxxxxxx>
> >
> > The loop in cache_tag_flush_range() modifies local 'addr' and 'mask'
> > variables that persist across iterations. When CACHE_TAG_NESTING_DEVTLB
> > overrides them for a full flush and falls through, subsequent tags incorrectly
> > receive the modified values instead of the original range.
> >
> > Fix by creating per-iteration local copies initialized from the original parameters,
> > ensuring each tag processes the intended flush range.
> >
> > Signed-off-by: Li RongQing<lirongqing@xxxxxxxxx>
> Ping

Thanks for the patch. It's now in my queue for the next merge window. I
will let you know when I include it in my pull request for Joerg.

Thanks,
baolu