linux-kernel - Re: [PATCH] tracing/syscalls: add in missing white space in error message text

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Date:   Mon, 12 Sep 2016 09:43:33 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Colin King <colin.king@...onical.com>
Cc:     Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
        trivial@...nel.org
Subject: Re: [PATCH] tracing/syscalls: add in missing white space in error
 message text

On Mon, 12 Sep 2016 12:41:27 +0100
Colin King <colin.king@...onical.com> wrote:

> From: Colin Ian King <colin.king@...onical.com>
> 
> pr_info message spans two lines and the literal string is missing
> a white space between words. Add the white space.
> 
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  kernel/trace/trace_syscalls.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
> index b2b6efc..79d8752 100644
> --- a/kernel/trace/trace_syscalls.c
> +++ b/kernel/trace/trace_syscalls.c
> @@ -610,7 +610,7 @@ static int perf_sysenter_enable(struct trace_event_call *call)
>  	if (!sys_perf_refcount_enter)
>  		ret = register_trace_sys_enter(perf_syscall_enter, NULL);
>  	if (ret) {
> -		pr_info("event trace: Could not activate"
> +		pr_info("event trace: Could not activate "
>  				"syscall entry trace point");

Actually, the better fix is to make this one line. The 80 character
limit is not applicable when it cuts strings in half, especially when
it causes bugs like this.

Also, this should go through trivial (with an ack from us).

-- Steve

>  	} else {
>  		set_bit(num, enabled_perf_enter_syscalls);
> @@ -682,7 +682,7 @@ static int perf_sysexit_enable(struct trace_event_call *call)
>  	if (!sys_perf_refcount_exit)
>  		ret = register_trace_sys_exit(perf_syscall_exit, NULL);
>  	if (ret) {
> -		pr_info("event trace: Could not activate"
> +		pr_info("event trace: Could not activate "
>  				"syscall exit trace point");
>  	} else {
>  		set_bit(num, enabled_perf_exit_syscalls);