linux-kernel - Re: [PATCH 1/2] ftrace: fix trace

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 15 Jan 2009 17:40:08 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Chris Mason <chris.mason@...cle.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Steven Rostedt <srostedt@...hat.com>
Subject: Re: [PATCH 1/2] ftrace: fix trace_output

On Thu, 15 Jan 2009 19:40:51 -0500 Steven Rostedt <rostedt@...dmis.org> wrote:

> From: Lai Jiangshan <laijs@...fujitsu.com>
> 
> Impact: fix bug for handling partial line
> 
> trace_seq_printf(), seq_print_userip_objs(), ... return
> 0          -- partial line was written
> other(>0)  -- success
> 
> duplicate output is also removed in trace_print_raw().
> 
> Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
> Signed-off-by: Steven Rostedt <srostedt@...hat.com>
> ---
>  kernel/trace/trace_output.c |   65 ++++++++++++++++++++----------------------
>  kernel/trace/trace_output.h |    4 +-
>  2 files changed, 33 insertions(+), 36 deletions(-)
> 
> diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
> index df0c25c..4e3ad36 100644
> --- a/kernel/trace/trace_output.c
> +++ b/kernel/trace/trace_output.c
> @@ -440,9 +440,9 @@ trace_fn_raw(struct trace_seq *s, struct trace_entry *entry, int flags)
>  
>  	trace_assign_type(field, entry);
>  
> -	if (trace_seq_printf(s, "%x %x\n",
> -			     field->ip,
> -			     field->parent_ip))
> +	if (!trace_seq_printf(s, "%x %x\n",

"%lx %lx", surely?

If trace_seq_printf() had the attribute(printf) thing, it would have warned.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/