linux-kernel - Re: [PATCH 2/2] Revert "um: clang: Strip out -mno-global-merge from USER

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Message-ID: <202203302158.BEAB17240@keescook>
Date:   Wed, 30 Mar 2022 21:58:02 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Nathan Chancellor <nathan@...nel.org>
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Johannes Berg <johannes@...solutions.net>,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-um@...ts.infradead.org, llvm@...ts.linux.dev,
        patches@...ts.linux.dev
Subject: Re: [PATCH 2/2] Revert "um: clang: Strip out -mno-global-merge from
 USER_CFLAGS"

On Wed, Mar 30, 2022 at 04:45:28PM -0700, Nathan Chancellor wrote:
> This reverts commit 6580c5c18fb3df2b11c5e0452372f815deeff895.
> 
> This patch is buggy, as noted in the patch linked below. The root cause
> has been solved by removing '-mno-global-merge' for the entire kernel.
> 
> Link: https://lore.kernel.org/r/20220322173547.677760-1-nathan@kernel.org/
> Signed-off-by: Nathan Chancellor <nathan@...nel.org>

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook