linux-kernel - [PATCH v5 20/23] ALSA: usb-audio: Convert to common field

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Message-ID: <91f957d8857d64df9eae33824203cc770b0182b3.1761588465.git.geert+renesas@glider.be>
Date: Mon, 27 Oct 2025 19:41:54 +0100
From: Geert Uytterhoeven <geert+renesas@...der.be>
To: Michael Turquette <mturquette@...libre.com>,
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Cc: linux-clk@...r.kernel.org,
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	Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH v5 20/23] ALSA: usb-audio: Convert to common field_{get,prep}() helpers

Drop the driver-specific field_get() and field_prep() macros, in favor
of the globally available variants from <linux/bitfield.h>.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
v5:
  - Extracted from "bitfield: Add non-constant field_{prep,get}()
    helpers".
---
 sound/usb/mixer_quirks.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 713a8498b975e1ac..6eee89cbc0867f2b 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -3311,12 +3311,6 @@ static int snd_bbfpro_controls_create(struct usb_mixer_interface *mixer)
 #define RME_DIGIFACE_REGISTER(reg, mask) (((reg) << 16) | (mask))
 #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)
 {
 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
-- 
2.43.0