From 7ec03ff7c761371b363e184f6b0722225f548102 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Sun, 5 Jan 2020 15:47:37 +0100 Subject: [PATCH] ALSA: usx2y: More constifications Apply const prefix to each possible place: the string array and the parameter tables and callers. Just for minor optimization and no functional changes. Link: https://lore.kernel.org/r/20200105144823.29547-23-tiwai@suse.de Signed-off-by: Takashi Iwai --- sound/usb/usx2y/usX2Yhwdep.c | 2 +- sound/usb/usx2y/usbusx2yaudio.c | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c index 0e6d82b..22412cd 100644 --- a/sound/usb/usx2y/usX2Yhwdep.c +++ b/sound/usb/usx2y/usX2Yhwdep.c @@ -94,7 +94,7 @@ static __poll_t snd_us428ctls_poll(struct snd_hwdep *hw, struct file *file, poll static int snd_usX2Y_hwdep_dsp_status(struct snd_hwdep *hw, struct snd_hwdep_dsp_status *info) { - static char *type_ids[USX2Y_TYPE_NUMS] = { + static const char * const type_ids[USX2Y_TYPE_NUMS] = { [USX2Y_TYPE_122] = "us122", [USX2Y_TYPE_224] = "us224", [USX2Y_TYPE_428] = "us428", diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c index c7dbc0f..772f6f3 100644 --- a/sound/usb/usx2y/usbusx2yaudio.c +++ b/sound/usb/usx2y/usbusx2yaudio.c @@ -549,7 +549,7 @@ static int snd_usX2Y_pcm_trigger(struct snd_pcm_substream *substream, int cmd) * if sg buffer is supported on the later version of alsa, we'll follow * that. */ -static struct s_c2 +static const struct s_c2 { char c1, c2; } @@ -589,7 +589,7 @@ static struct s_c2 { 0x18, 0x7C}, { 0x18, 0x7E} }; -static struct s_c2 SetRate48000[] = +static const struct s_c2 SetRate48000[] = { { 0x14, 0x09}, // this line sets 48000, well actually a little less { 0x18, 0x40}, // only tascam / frontier design knows the further lines ....... @@ -642,7 +642,7 @@ static int usX2Y_rate_set(struct usX2Ydev *usX2Y, int rate) int err = 0, i; struct snd_usX2Y_urbSeq *us = NULL; int *usbdata = NULL; - struct s_c2 *ra = rate == 48000 ? SetRate48000 : SetRate44100; + const struct s_c2 *ra = rate == 48000 ? SetRate48000 : SetRate44100; if (usX2Y->rate != rate) { us = kzalloc(sizeof(*us) + sizeof(struct urb*) * NOOF_SETRATE_URBS, GFP_KERNEL); -- 2.7.4