Re: [PATCH 1/1] fs/ubifs/super.c: replace seq_printf by seq_puts

From: Andrew Morton
Date: Tue Jul 15 2014 - 16:59:39 EST

On Tue, 15 Jul 2014 22:10:24 +0200 Richard Weinberger <richard.weinberger@xxxxxxxxx> wrote:

> On Tue, Jul 15, 2014 at 9:26 PM, Fabian Frederick <fabf@xxxxxxxxx> wrote:
> > Fix checkpatch warnings:
> > "WARNING: Prefer seq_puts to seq_printf"
> Can you explain why seq_puts() is preferred over seq_printf()?

- puts is presumably faster

- puts doesn't go rogue if you accidentally pass it a "%".

- this patch actually made fs/ubifs/super.o 12 bytes smaller.
Perhaps because seq_printf() is a varargs function, forcing the
caller to pass args on the stack instead of in registers.
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