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

Ard Biesheuvel ardb at kernel.org
Mon Jan 25 02:51:02 EST 2021


On Mon, 25 Jan 2021 at 00:09, Russell King - ARM Linux admin
<linux at armlinux.org.uk> wrote:
>
> 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.
>

Oops, I already did so yesterday. I did expand a bit on the commit
log, and added the fixes header, but either version is fine with me.



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