[PATCH v1] ALSA:ac97: Remove redundant driver match function

From: Lizhe
Date: Sun Mar 19 2023 - 00:48:38 EST


If there is no driver match function, the driver core assumes that each
candidate pair (driver, device) matches, see driver_match_device()

Drop the bus's match function that always returned 1 and so
implements the same behaviour as when there is no match function.

Signed-off-by: Lizhe <sensor1010@xxxxxxx>
---
sound/ac97_bus.c | 11 -----------
1 file changed, 11 deletions(-)

diff --git a/sound/ac97_bus.c b/sound/ac97_bus.c
index b4685c53ff11..c7aee8c42c55 100644
--- a/sound/ac97_bus.c
+++ b/sound/ac97_bus.c
@@ -75,19 +75,8 @@ int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id,
}
EXPORT_SYMBOL_GPL(snd_ac97_reset);

-/*
- * Let drivers decide whether they want to support given codec from their
- * probe method. Drivers have direct access to the struct snd_ac97
- * structure and may decide based on the id field amongst other things.
- */
-static int ac97_bus_match(struct device *dev, struct device_driver *drv)
-{
- return 1;
-}
-
struct bus_type ac97_bus_type = {
.name = "ac97",
- .match = ac97_bus_match,
};

static int __init ac97_bus_init(void)
--
2.34.1