linux-kernel - Re: [PATCH] MIPS: include: Mark __cmpxchd as __always

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Date:   Mon, 7 Oct 2019 17:50:17 +0000
From:   Paul Burton <paul.burton@...s.com>
To:     Thomas Bogendoerfer <tbogendoerfer@...e.de>
CC:     Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <pburton@...ecomp.com>,
        James Hogan <jhogan@...nel.org>,
        "linux-mips@...r.kernel.org" <linux-mips@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mips@...r.kernel.org" <linux-mips@...r.kernel.org>
Subject: Re: [PATCH] MIPS: include: Mark __cmpxchd as __always_inline

Hello,

Thomas Bogendoerfer wrote:
> Commit ac7c3e4ff401 ("compiler: enable CONFIG_OPTIMIZE_INLINING
> forcibly") allows compiler to uninline functions marked as 'inline'.
> In cace of cmpxchg this would cause to reference function
> __cmpxchg_called_with_bad_pointer, which is a error case
> for catching bugs and will not happen for correct code, if
> __cmpxchg is inlined.

Applied to mips-fixes.

> commit 88356d09904b
> https://git.kernel.org/mips/c/88356d09904b
> 
> Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@...e.de>
> [paul.burton@...s.com: s/__cmpxchd/__cmpxchg in subject]
> Signed-off-by: Paul Burton <paul.burton@...s.com>

Thanks,
    Paul

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