From: Frederic Weisbecker <fweisbec@gmail.com>
To: Rakib Mullick <rakib.mullick@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>,
x86@kernel.org, sandmann@redhat.com
Subject: Re: [PATCH] x86, dumpstack: Fix unused variable warning.
Date: Thu, 25 Nov 2010 07:32:23 +0100 [thread overview]
Message-ID: <20101125073223.1d53b8c6@nowhere> (raw)
In-Reply-To: <AANLkTik9U_Z0WSZ7YjrykER_pBUfPDdgUUmtYx=R74nL@mail.gmail.com>
Le Thu, 25 Nov 2010 11:35:16 +0600,
Rakib Mullick <rakib.mullick@gmail.com> a écrit :
> On Wed, Nov 24, 2010 at 7:19 PM, Frederic Weisbecker
> <fweisbec@gmail.com> wrote:
> > 2010/11/24 Rakib Mullick <rakib.mullick@gmail.com>:
> >
> > Looks like you can even remove that block. bp is not used any more
> > in this function.
> > get_bp() was only loading bp but did not make any use of it.
>
> Yes, right. Here is the updated one.
>
> In dump_stack function, bp isn't used anymore, which is introduced by
> commit 9c0729dc8062bed96189bd14ac6d4920f3958743. This patch removes bp
> completely.
>
>
> Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
> ---
>
> diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
> index 8474c99..d6fb146 100644
> --- a/arch/x86/kernel/dumpstack.c
> +++ b/arch/x86/kernel/dumpstack.c
> @@ -197,14 +197,8 @@ void show_stack(struct task_struct *task,
> unsigned long *sp)
> */
> void dump_stack(void)
> {
> - unsigned long bp = 0;
> unsigned long stack;
>
> -#ifdef CONFIG_FRAME_POINTER
> - if (!bp)
> - get_bp(bp);
> -#endif
> -
> printk("Pid: %d, comm: %.20s %s %s %.*s\n",
> current->pid, current->comm, print_tainted(),
> init_utsname()->release,
>
Queued, thanks!
next prev parent reply other threads:[~2010-11-25 6:32 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-24 9:19 [PATCH] x86, dumpstack: Fix unused variable warning Rakib Mullick
2010-11-24 9:57 ` Jesper Juhl
2010-11-24 10:26 ` Rakib Mullick
2010-11-24 13:01 ` Frederic Weisbecker
2010-11-24 13:53 ` Jesper Juhl
2010-11-25 5:36 ` Rakib Mullick
2010-11-25 4:07 ` Valdis.Kletnieks
2010-11-25 6:30 ` Frederic Weisbecker
2010-11-24 13:19 ` Frederic Weisbecker
2010-11-25 5:35 ` Rakib Mullick
2010-11-25 6:32 ` Frederic Weisbecker [this message]
2011-01-08 12:06 ` [tip:perf/urgent] " tip-bot for Rakib Mullick
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