From: geoff@infradead.org (Geoff Levand)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v1] Arm64: Remove unnecessary keyword 'extern' from proc-fns.h
Date: Tue, 19 Aug 2014 12:42:51 -0700 [thread overview]
Message-ID: <1408477371.22761.145.camel@smoke> (raw)
In-Reply-To: <1408438726-2413-1-git-send-email-achandran@mvista.com>
Hi Arun,
On Tue, 2014-08-19 at 14:28 +0530, Arun Chandran wrote:
> As the functions have external linkage by default, the extern
> keyword is irrelevant here.
extern is used to say that the storage of a variable is done
somewhere else. It marks a statement as a declaration when
there is ambiguity about if the statement is a definition or
declaration. Since function prototypes are not definitions,
extern doesn't have any effect on them. It is not really
related to linkage or scope.
-Geoff
next prev parent reply other threads:[~2014-08-19 19:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-19 8:58 [PATCH v1] Arm64: Remove unnecessary keyword 'extern' from proc-fns.h Arun Chandran
2014-08-19 19:42 ` Geoff Levand [this message]
2014-08-19 20:29 ` Will Deacon
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