Re: [PATCH] ARC-setup: Use seq_putc() in show_cpuinfo()

From: Vineet Gupta
Date: Mon Oct 17 2016 - 12:26:17 EST


On 10/15/2016 12:56 PM, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Sat, 15 Oct 2016 21:31:16 +0200
>
> A single character (line break) should be put into a sequence.
> Thus use the corresponding function "seq_putc".

Perhaps reword the changelog to say that seqc_putc is more efficient than
seqc_printf to output a single char.
I mean _printf is not wrong but not as efficient ?

>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> ---
> arch/arc/kernel/setup.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
> index 3df7f9c..e3f5432 100644
> --- a/arch/arc/kernel/setup.c
> +++ b/arch/arc/kernel/setup.c
> @@ -494,8 +494,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
>
> free_page((unsigned long)str);
> done:
> - seq_printf(m, "\n");
> -
> + seq_putc(m, '\n');
> return 0;
> }
>