From: Li Zefan <lizf@cn.fujitsu.com>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [GIT PULL] tracing: Fix misuse of strncpy to copy boot params
Date: Thu, 15 Oct 2009 10:01:13 +0800 [thread overview]
Message-ID: <4AD68269.50701@cn.fujitsu.com> (raw)
In-Reply-To: <1255552732-5096-1-git-send-email-fweisbec@gmail.com>
> diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
> index 4506826..621d81e 100644
> --- a/kernel/trace/trace.c
> +++ b/kernel/trace/trace.c
> @@ -131,7 +131,7 @@ static char *default_bootup_tracer;
>
> static int __init set_ftrace(char *str)
> {
> - strncpy(bootup_tracer_buf, str, MAX_TRACER_SIZE);
> + strlcpy(bootup_tracer_buf, str, MAX_TRACER_SIZE);
Actually using strncpy() here is fine.
See how the str buf is used:
int register_tracer(struct tracer *type)
{
...
if (strncmp(default_bootup_tracer, type->name, MAX_TRACER_SIZE))
...
}
> default_bootup_tracer = bootup_tracer_buf;
> /* We are using ftrace early, expand it */
> ring_buffer_expanded = 1;
next prev parent reply other threads:[~2009-10-15 2:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-14 20:38 [GIT PULL] tracing: Fix misuse of strncpy to copy boot params Frederic Weisbecker
2009-10-15 2:01 ` Li Zefan [this message]
2009-10-15 12:32 ` Frederic Weisbecker
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