On Mon, 29 Mar 2021 16:54:26 +0200 Andrey Konovalov [off-list ref] wrote:

Looks like my patch "kasan: fix KASAN_STACK dependency for HW_TAGS"
that was merged into 5.12-rc causes a build time warning:

include/linux/kasan.h:333:30: warning: 'CONFIG_KASAN_STACK' is not
defined, evaluates to 0 [-Wundef]
#if defined(CONFIG_KASAN) && CONFIG_KASAN_STACK

The fix for it would either be reverting the patch (which would leave
the initial issue unfixed) or applying this "kasan: remove redundant
config option" patch.

Would it be possible to send this patch (with the fix-up you have in
mm) for the next 5.12-rc?

Here are the required tags:

Fixes: d9b571c885a8 ("kasan: fix KASAN_STACK dependency for HW_TAGS")
Cc: stable@vger.kernel.org

Got it, thanks.  I updated the changelog to mention the warning fix and
moved these ahead for a -rc merge.


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