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From:   Nick Desaulniers <ndesaulniers@google.com>
Date:   Mon, 9 May 2022 12:50:01 -0700
Message-ID: <CAKwvOdniSVMOwkBke2EcgONn_Vmv88M+B2FTYL_BKtWawCSLAw@mail.gmail.com>
Subject: Re: [RESEND PATCH v1] x86/build: add -fno-builtin flag to prevent shadowing
To:     Vincent MAILHOL <mailhol.vincent@wanadoo.fr>
Cc:     Nathan Chancellor <nathan@kernel.org>,
        Arnd Bergmann <arnd@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        "the arch/x86 maintainers" <x86@kernel.org>,
        "H . Peter Anvin" <hpa@zytor.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        clang-built-linux <llvm@lists.linux.dev>,
        Tom Rix <trix@redhat.com>, Kees Cook <keescook@chromium.org>
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On Mon, May 9, 2022 at 8:01 AM Vincent MAILHOL
<mailhol.vincent@wanadoo.fr> wrote:
>
> Instead, I am thinking of just using -fno-builtin-ffs to remove
> the annoying -Wshadow warning. Would that make more sense?

Perhaps a pragma would be the best tool to silence this instance of
-Wshadow?  I understand what GCC is trying to express, but the kernel
does straddle a weird place between -ffreestanding and a "hosted" env.
-- 
Thanks,
~Nick Desaulniers