From: Tuomas Tynkkynen <tuomas.tynkkynen-X3B1VOXEql0@public.gmane.org>
To: linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] pinctrl: Cleanup string initializations (char[] instead of char *)
Date: Sat, 17 May 2014 15:36:40 +0000 (UTC) [thread overview]
Message-ID: <loom.20140517T173525-130@post.gmane.org> (raw)
In-Reply-To: 1400337445-25750-1-git-send-email-manuel.schoelling@gmx.de
Manuel Schölling <manuel.schoelling@...> writes:
>
> Initializations like 'char *foo = "bar"' will create two variables: a
static
> string and a pointer (foo) to that static string. Instead 'char foo[] =
"bar"'
> will declare a single variable and will end up in shorter
> assembly (according to Jeff Garzik on the KernelJanitor's TODO list).
>
For globals this might be the case, but for function locals this is
actually more code since the string now needs to be copied to the stack.
next prev parent reply other threads:[~2014-05-17 15:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-17 14:37 [PATCH] pinctrl: Cleanup string initializations (char[] instead of char *) Manuel Schölling
2014-05-17 15:36 ` Tuomas Tynkkynen [this message]
[not found] ` <1400337445-25750-1-git-send-email-manuel.schoelling-Mmb7MZpHnFY@public.gmane.org>
2014-05-17 21:24 ` Thierry Reding
2014-05-22 21:57 ` Linus Walleij
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