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ASoC: Intel: mrfld: simplify sst_fill_widget_module_info 

Some tiny improvements, cutting 180 bytes off the generated code.

- use strchr() for single-character needle

- compute index using pointer subtraction instead of two strlen()
  calls

- factor out the common check for whether the initial part of
  kctl->id.name (before the space) is identical to w->name.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Tested-by: Fang, Yang A <yang.a.fang@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Rasmus Villemoes 2015-06-04 10:13:53 +02:00 committed by Mark Brown
parent fd35e37510
commit 6846e18a1e
1 changed files with 8 additions and 12 deletions
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20
sound/soc/intel/atom/sst-atom-controls.c
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@ -1401,36 +1401,32 @@ static int sst_fill_widget_module_info(struct snd_soc_dapm_widget *w,
down_read(&card->controls_rwsem);
list_for_each_entry(kctl, &card->controls, list) {
idx = strstr(kctl->id.name, " ");
idx = strchr(kctl->id.name, ' ');
if (idx == NULL)
continue;
index = strlen(kctl->id.name) - strlen(idx);
index = idx - (char*)kctl->id.name;
if (strncmp(kctl->id.name, w->name, index))
continue;
if (strstr(kctl->id.name, "Volume") &&
!strncmp(kctl->id.name, w->name, index))
if (strstr(kctl->id.name, "Volume"))
ret = sst_fill_module_list(kctl, w, SST_MODULE_GAIN);
else if (strstr(kctl->id.name, "params") &&
!strncmp(kctl->id.name, w->name, index))
else if (strstr(kctl->id.name, "params"))
ret = sst_fill_module_list(kctl, w, SST_MODULE_ALGO);
else if (strstr(kctl->id.name, "Switch") &&
!strncmp(kctl->id.name, w->name, index) &&
strstr(kctl->id.name, "Gain")) {
struct sst_gain_mixer_control *mc =
(void *)kctl->private_value;
mc->w = w;
} else if (strstr(kctl->id.name, "interleaver") &&
!strncmp(kctl->id.name, w->name, index)) {
} else if (strstr(kctl->id.name, "interleaver")) {
struct sst_enum *e = (void *)kctl->private_value;
e->w = w;
} else if (strstr(kctl->id.name, "deinterleaver") &&
!strncmp(kctl->id.name, w->name, index)) {
} else if (strstr(kctl->id.name, "deinterleaver")) {
struct sst_enum *e = (void *)kctl->private_value;
e->w = w;