linux-kernel - Re: [PATCH v3 0/3] tracing: Fix the parser when processing strings w/ or w/o terminated '\0'

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Message-ID: <20180117023541.GA6698@danjae.aot.lge.com>
Date:   Wed, 17 Jan 2018 11:35:41 +0900
From:   Namhyung Kim <namhyung@...nel.org>
To:     changbin.du@...el.com
Cc:     rostedt@...dmis.org, jolsa@...hat.com, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        kernel-team@....com
Subject: Re: [PATCH v3 0/3] tracing: Fix the parser when processing strings
 w/ or w/o terminated '\0'

On Tue, Jan 16, 2018 at 05:02:27PM +0800, changbin.du@...el.com wrote:
> From: Changbin Du <changbin.du@...el.com>
> 
> I found there are some problems in the tracing parser when I investiage the root
> cause of issues mentioned in below patch.
> https://patchwork.kernel.org/patch/10132953/
> 
> This serials can fix them.
> 
> v3: Polish commit msg from Steven Rostedt.
> v2:
>   - Drop 1 old patch and add a new one.
>   - Stop parsing when '\0' found.
> 
> Changbin Du (3):
>   tracing: detect the string termination character when parsing user
>     input string
>   tracing: clear parser->idx if parser gets nothing
>   tracing: make sure the parsed string always terminates with '\0'

Acked-by: Namhyung Kim <namhyung@...nel.org>

Thanks,
Namhyung


> 
>  kernel/trace/ftrace.c       |  2 --
>  kernel/trace/trace.c        | 14 +++++++-------
>  kernel/trace/trace_events.c |  2 --
>  3 files changed, 7 insertions(+), 11 deletions(-)
> 
> -- 
> 2.7.4
> 
> --
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