linux-kernel - Re: [PATCH 8/8] kprobes/s390: Fix %p uses in error messages

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Message-Id: <20180127101546.GA3915@osiris>
Date:   Sat, 27 Jan 2018 11:15:46 +0100
From:   Heiko Carstens <heiko.carstens@...ibm.com>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>,
        "H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Ananth N Mavinakayanahalli <ananth@...ibm.com>,
        Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jon Medhurst <tixy@...aro.org>,
        Will Deacon <will.deacon@....com>,
        Arnd Bergmann <arnd@...db.de>,
        David Howells <dhowells@...hat.com>,
        "Tobin C . Harding" <me@...in.cc>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 8/8] kprobes/s390: Fix %p uses in error messages

On Thu, Jan 25, 2018 at 02:30:32PM +0900, Masami Hiramatsu wrote:
> Remove %p because the kprobe will be dumped in
> dump_kprobe().
> 
> Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
> ---
>  arch/s390/kernel/kprobes.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
> index af3722c28fd9..df30e5b9a572 100644
> --- a/arch/s390/kernel/kprobes.c
> +++ b/arch/s390/kernel/kprobes.c
> @@ -282,7 +282,7 @@ static void kprobe_reenter_check(struct kprobe_ctlblk *kcb, struct kprobe *p)
>  		 * is a BUG. The code path resides in the .kprobes.text
>  		 * section and is executed with interrupts disabled.
>  		 */
> -		printk(KERN_EMERG "Invalid kprobe detected at %p.\n", p->addr);
> +		pr_err("Invalid kprobe detected.\n");

Given that this change makes sense anyway, I just applied it to the s390
tree. :)

Thanks!