From 6846e18a1e71360e76509f8d8235679a97b2437c Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Thu, 4 Jun 2015 10:13:53 +0200 Subject: 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 Acked-by: Vinod Koul Tested-by: Fang, Yang A Signed-off-by: Mark Brown --- sound/soc/intel/atom/sst-atom-controls.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) (limited to 'sound') diff --git a/sound/soc/intel/atom/sst-atom-controls.c b/sound/soc/intel/atom/sst-atom-controls.c index 61e240935451..31e9b9ecbb8a 100644 --- a/sound/soc/intel/atom/sst-atom-controls.c +++ b/sound/soc/intel/atom/sst-atom-controls.c @@ -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; -- cgit