Re: [PATCH] kexec: fix warnig of crash_zero_bytes in crash.c

From: Borislav Petkov
Date: Thu Jun 20 2019 - 12:39:21 EST

On Sat, Jun 15, 2019 at 07:18:20AM +0800, Tiezhu Yang wrote:
> This patch fixes the following sparse warning:

Avoid having "This patch" or "This commit" in the commit message. It is
tautologically useless.

Also, do

$ git grep 'This patch' Documentation/process

for more details.

> arch/x86/kernel/crash.c:59:15:
> warning: symbol 'crash_zero_bytes' was not declared. Should it be static?
> In addition, crash_zero_bytes is used when CONFIG_KEXEC_FILE is
> set, so make it only available under CONFIG_KEXEC_FILE. Otherwise,
> if CONFIG_KEXEC_FILE is not set, the following warning will appear:
> arch/x86/kernel/crash.c:59:22:
> warning: âcrash_zero_bytesâ defined but not used [-Wunused-variable]

That happens only when you make it static, so please state that in the
commit message.



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