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SubjectRe: [PATCH] ARM: add BUILD_BUG_ON to check if fixmap range spans multiple pmds
On Wed, Oct 20, 2021 at 7:50 AM <quanyang.wang@windriver.com> wrote:

> From: Quanyang Wang <quanyang.wang@windriver.com>
>
> Not only the early fixmap range, but also the fixmap range should be
> checked if it spans multiple pmds. When enabling CONFIG_DEBUG_HIGHMEM,
> some systems which contain up to 16 CPUs will crash.
>
> Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>

Looks reasonable to me.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Please submit this patch into Russell's patch tracker.

Yours,
Linus Walleij

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