linux-kernel - Re: [PATCH 1/3] sparc64: Add compile-time asserts for siginfo

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Message-Id: <20210430.152258.729887124786441756.davem@davemloft.net>
Date:   Fri, 30 Apr 2021 15:22:58 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     elver@...gle.com
Cc:     ebiederm@...ssion.com, linux@...linux.org.uk,
        catalin.marinas@....com, will@...nel.org, mark.rutland@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        sparclinux@...r.kernel.org
Subject: Re: [PATCH 1/3] sparc64: Add compile-time asserts for siginfo_t
 offsets

From: Marco Elver <elver@...gle.com>
Date: Thu, 29 Apr 2021 21:07:32 +0200

> To help catch ABI breaks at compile-time, add compile-time assertions to
> verify the siginfo_t layout. Unlike other architectures, sparc64 is
> special, because it is one of few architectures requiring si_trapno.
> ABI breaks around that field would only be caught here.
> 
> Link: https://lkml.kernel.org/r/m11rat9f85.fsf@fess.ebiederm.org
> Suggested-by: Eric W. Biederman <ebiederm@...ssion.com>
> Signed-off-by: Marco Elver <elver@...gle.com>

Acked-by: David S. Miller <davem@...emloft.net>