Messages in this thread Patch in this message |  | | From | Arvind Yadav <> | Subject | [PATCH 4/7] ALSA: usb-audio: constify usb_device_id. | Date | Sun, 6 Aug 2017 12:18:56 +0530 |
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usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> --- sound/usb/card.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/usb/card.c b/sound/usb/card.c index 6640277..3dc36d9 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -486,7 +486,7 @@ static bool get_alias_id(struct usb_device *dev, unsigned int *id) return false; } -static struct usb_device_id usb_audio_ids[]; /* defined below */ +static const struct usb_device_id usb_audio_ids[]; /* defined below */ /* look for the corresponding quirk */ static const struct snd_usb_audio_quirk * @@ -814,7 +814,7 @@ static int usb_audio_reset_resume(struct usb_interface *intf) #define usb_audio_reset_resume NULL #endif /* CONFIG_PM */ -static struct usb_device_id usb_audio_ids [] = { +static const struct usb_device_id usb_audio_ids [] = { #include "quirks-table.h" { .match_flags = (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS), .bInterfaceClass = USB_CLASS_AUDIO, -- 2.7.4
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