linux-kernel - Re: [PATCH v2] tracing: make ftrace_print_array_seq compute buf

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Message-ID: <20150429113630.7595e9ce@gandalf.local.home>
Date:	Wed, 29 Apr 2015 11:36:30 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Alex Bennée <alex.bennee@...aro.org>
Cc:	mingo@...hat.com, Dave.Martin@....com,
	linux-kernel@...r.kernel.org, Oleg Nesterov <oleg@...hat.com>,
	Javi Merino <javi.merino@....com>,
	"Peter Zijlstra (Intel)" <peterz@...radead.org>
Subject: Re: [PATCH v2] tracing: make ftrace_print_array_seq compute buf_len

On Wed, 29 Apr 2015 16:18:46 +0100
Alex Bennée <alex.bennee@...aro.org> wrote:

> The only caller to this function (__print_array) was getting it wrong by
> passing the array length instead of buffer length. As the element size
> was already being passed for other reasons it seems reasonable to push
> the calculation of buffer length into the function.
> 
> Signed-off-by: Alex Bennée <alex.bennee@...aro.org>

Thanks, I'll add a stable tag to this too, and get it out soon.

-- Steve

> 
> ---
> v2:
>   - more explicit commit message
>   - rename len -> count to reduce ambiguity
> ---
>  include/linux/ftrace_event.h | 2 +-
>  kernel/trace/trace_output.c  | 3 ++-
>  2 files changed, 3 insertions(+), 2 deletions(-)
> 
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