[PATCH] ARM: decompressor: cover BSS in cache clean and reorder with MMU disable on v7

Russell King - ARM Linux admin linux at armlinux.org.uk
Sun Jan 24 18:08:57 EST 2021


On Sun, Jan 24, 2021 at 04:18:31PM +0000, Russell King - ARM Linux admin wrote:
> On Sun, Jan 24, 2021 at 04:45:14PM +0100, Ard Biesheuvel wrote:
> > So on the basis that this patch adds back a full cache
> > clean+invalidate that was inadvertently removed by my previous patch,
> > I think we should apply this patch. GIven that this change can be
> > traced back to commit 401b368caaecdce1cf8f05bab448172752230cb0, we
> > should probably include
> > 
> > Fixes: 401b368caaec ("ARM: decompressor: switch to by-VA cache
> > maintenance for v7 cores")
> > 
> > Are you on board with that?
> 
> Yes, I think that's definitely the commit which introduced this bug.

BTW, there's no need to submit your patch to the patch system, I
obviously already have it in my tree. I'll move it over to the usual
"fixes" branch in due course.

Thanks.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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