diff options
| author |   Takashi Iwai <tiwai@suse.de> | 2020-11-23 09:53:33 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-11-23 15:15:36 +0100 |
| commit | cab941b7e5cf054502b01f776db724400ee5c1b6 (patch) | |
| tree | dc80dec664d8f67b7ce213bd0d7cfb3b7cf42717 /sound/usb/quirks.c | |
| parent | ALSA: usb-audio: Fix possible stall of implicit fb packet ring-buffer (diff) | |
| download | wireguard-linux-cab941b7e5cf054502b01f776db724400ee5c1b6.tar.xz wireguard-linux-cab941b7e5cf054502b01f776db724400ee5c1b6.zip | |
ALSA: usb-audio: Constify audioformat pointer references
The audioformat is referred in many places but most of usages are
read-only. Let's add const prefix in the possible places.
Tested-by: Keith Milner <kamilner@superlative.org>
Tested-by: Dylan Robinson <dylan_robinson@motu.com>
Link: https://lore.kernel.org/r/20201123085347.19667-28-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/quirks.c')
| -rw-r--r-- | sound/usb/quirks.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 7e7f258011ff..5510c8a98447 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1375,7 +1375,8 @@ int snd_usb_apply_boot_quirk_once(struct usb_device *dev, /* * check if the device uses big-endian samples */ -int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp) +int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, + const struct audioformat *fp) { /* it depends on altsetting whether the device is big-endian or not */ switch (chip->usb_id) { @@ -1414,7 +1415,7 @@ enum { }; static void set_format_emu_quirk(struct snd_usb_substream *subs, - struct audioformat *fmt) + const struct audioformat *fmt) { unsigned char emu_samplerate_id = 0; @@ -1476,7 +1477,7 @@ static int pioneer_djm_set_format_quirk(struct snd_usb_substream *subs) } void snd_usb_set_format_quirk(struct snd_usb_substream *subs, - struct audioformat *fmt) + const struct audioformat *fmt) { switch (subs->stream->chip->usb_id) { case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */ @@ -1543,7 +1544,7 @@ static bool is_itf_usb_dsd_dac(unsigned int id) } int snd_usb_select_mode_quirk(struct snd_usb_audio *chip, - struct audioformat *fmt) + const struct audioformat *fmt) { struct usb_device *dev = chip->dev; int err; |