From 19260818a9747768b09c1c1f10b4125b4d00595e Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 3 Jan 2020 09:16:38 +0100 Subject: ALSA: ac97: Treat snd_ac97_bus_ops as const This is a preliminary patch to allow const for snd_ac97_bus_ops definitions in each driver's code. The ops reference is read-only, hence it can be declared as const for further optimization. There should be no functional changes by this patch. Link: https://lore.kernel.org/r/20200103081714.9560-23-tiwai@suse.de Signed-off-by: Takashi Iwai --- sound/ac97_bus.c | 2 +- sound/pci/ac97/ac97_codec.c | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'sound') diff --git a/sound/ac97_bus.c b/sound/ac97_bus.c index 3732a63a2a81..b4685c53ff11 100644 --- a/sound/ac97_bus.c +++ b/sound/ac97_bus.c @@ -55,7 +55,7 @@ static bool snd_ac97_check_id(struct snd_ac97 *ac97, unsigned int id, int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id, unsigned int id_mask) { - struct snd_ac97_bus_ops *ops = ac97->bus->ops; + const struct snd_ac97_bus_ops *ops = ac97->bus->ops; if (try_warm && ops->warm_reset) { ops->warm_reset(ac97); diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c index 41bdec4249e1..fcfa8499e453 100644 --- a/sound/pci/ac97/ac97_codec.c +++ b/sound/pci/ac97/ac97_codec.c @@ -1894,7 +1894,8 @@ static int ac97_reset_wait(struct snd_ac97 *ac97, int timeout, int with_modem) * * Return: Zero if successful, or a negative error code on failure. */ -int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops, +int snd_ac97_bus(struct snd_card *card, int num, + const struct snd_ac97_bus_ops *ops, void *private_data, struct snd_ac97_bus **rbus) { int err; -- cgit v1.2.3-59-g8ed1b