From: Andrew Morton <akpm@linux-foundation.org>
To: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] m32r: mm: fix build warning
Date: Tue, 14 Feb 2017 14:15:51 -0800 [thread overview]
Message-ID: <20170214141551.93d31680b42e255b7c604e51@linux-foundation.org> (raw)
In-Reply-To: <1487109945-5342-1-git-send-email-sudipm.mukherjee@gmail.com>
On Tue, 14 Feb 2017 22:05:45 +0000 Sudip Mukherjee <sudipm.mukherjee@gmail.com> wrote:
> The build of m32r was giving warning:
> mm/pgtable-generic.c: In function 'ptep_clear_flush':
> mm/pgtable-generic.c:76:20: warning:
> unused variable 'mm' [-Wunused-variable]
>
> The implementation of ptep_get_and_clear() and pte_accessible()
> does not use 'mm'.
That's because ptep_get_and_clear() and pte_accessible() are
implemented as macros. If they were (static inline) C functions then
this warning wouldn't occur. All the other architectures get this
right.
next prev parent reply other threads:[~2017-02-14 22:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-14 22:05 Sudip Mukherjee
2017-02-14 22:15 ` Andrew Morton [this message]
2017-02-15 11:38 ` Sudip Mukherjee
-- strict thread matches above, loose matches on Subject: below --
2016-01-28 13:10 Sudip Mukherjee
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