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Date:   Mon, 15 Nov 2021 11:39:18 -0700
From:   Nathan Chancellor <nathan@kernel.org>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Sasha Levin <sashal@kernel.org>,
        Kees Cook <keescook@chromium.org>,
        Nick Desaulniers <ndesaulniers@google.com>
Cc:     stable@vger.kernel.org, llvm@lists.linux.dev
Subject: Apply a52f8a59aef46b59753e583bf4b28fccb069ce64 to 5.15 through 4.19
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Hi Greg and Sasha,

There is a build error with newer versions of clang due to a broken
FORTIFY_SOURCE implementation, which has never worked:

https://github.com/ClangBuiltLinux/linux/issues/1496
https://github.com/ClangBuiltLinux/continuous-integration2/actions/runs/1457787760

Please apply upstream commit a52f8a59aef4 ("fortify: Explicitly disable
Clang support") to 5.15 through 4.19 to resolve this. It should apply
cleanly.

Cheers,
Nathan