linux/sound/soc/sh
Gustavo A. R. Silva 32e1b60d8f ASoC: rsnd: remove unnecessary static in rsnd_ssiu_probe()
Remove unnecessary static on local variable ops.
Such variable is initialized before being used,
on every execution path throughout the function.
The static has no benefit and, removing it reduces
the code size.

This issue was detected using Coccinelle and the following semantic patch:

@bad exists@
position p;
identifier x;
type T;
@@

static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@

-static
 T x@p;
 ... when != x
     when strict
?x = e;

In the following log you can see the difference in the code size. Also,
there is a significant difference in the bss segment. This log is the
output of the size command, before and after the code change:

before:
   text    data     bss     dec     hex filename
   3211     680      64    3955     f73 sound/soc/sh/rcar/ssiu.o

after:
   text    data     bss     dec     hex filename
   3207     592       0    3799     ed7 sound/soc/sh/rcar/ssiu.o

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-17 17:00:57 +01:00
..
rcar ASoC: rsnd: remove unnecessary static in rsnd_ssiu_probe() 2017-07-17 17:00:57 +01:00
dma-sh7760.c ASoC: sh: dma-sh7760: Convert to devm_snd_soc_register_platform 2015-08-30 12:15:10 +01:00
fsi.c ASoC: fsi: Move inline fsi_stream_is_play() before use 2017-05-17 10:36:05 +01:00
hac.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
Kconfig ASoC: rsnd: add HDMI output support 2017-05-19 18:36:25 +01:00
Makefile ASoC: add Renesas R-Car core feature 2013-07-28 19:34:09 +01:00
migor.c ASoC: migor: use clkdev_create() 2015-05-06 11:58:59 +01:00
sh7760-ac97.c ASoC: sh: Add .owner to struct snd_soc_card 2011-12-23 11:32:07 +00:00
siu_dai.c ALSA: declare snd_kcontrol_new structures as const 2017-05-30 10:29:25 +02:00
siu_pcm.c ASoC: sh: Remove unnecessary snd_pcm_lib_preallocate_free_for_all() 2015-01-05 21:30:05 +00:00
siu.h
ssi.c ASoC: sh: ssi: Convert to devm_snd_soc_register_component 2015-08-28 17:28:49 +01:00