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ALSA: usb-audio: #undef field_{get,prep}() before local definition

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Prepare for the advent of globally available common field_get() and
field_prep() macros by undefining the symbols before defining local
variants.  This prevents redefinition warnings from the C preprocessor
when introducing the common macros later.

Suggested-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
This commit is contained in:
Geert Uytterhoeven
2025-11-06 14:33:57 +01:00
committed by Yury Norov (NVIDIA)
parent 138ab44108
commit 85a8ff1185
1 changed files with 2 additions and 0 deletions
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2
sound/usb/mixer_quirks.c
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@@ -3312,7 +3312,9 @@ static int snd_bbfpro_controls_create(struct usb_mixer_interface *mixer)
#define RME_DIGIFACE_INVERT BIT(31)
/* Nonconst helpers */
#undef field_get
#define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1))
#undef field_prep
#define field_prep(_mask, _val) (((_val) << (ffs(_mask) - 1)) & (_mask))
static int snd_rme_digiface_write_reg(struct snd_kcontrol *kcontrol, int item, u16 mask, u16 val)