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Re: [PATCH] m32r: mm: fix build warning

From Andrew Morton <akpm@linux-foundation.org>
Newsgroups linux.kernel
Subject Re: [PATCH] m32r: mm: fix build warning
Date 2017-02-14 23:20 +0100
Message-ID <taTC2-7Be-7@gated-at.bofh.it> (permalink)
References <taTsl-7x0-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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.

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Thread

[PATCH] m32r: mm: fix build warning Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2017-02-14 23:10 +0100
  Re: [PATCH] m32r: mm: fix build warning Andrew Morton <akpm@linux-foundation.org> - 2017-02-14 23:20 +0100
    Re: [PATCH] m32r: mm: fix build warning Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2017-02-15 12:40 +0100

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