The function prev_slot is defined in the dma.c file, but not called elsewhere, so remove this unused function. drivers/net/wireless/broadcom/b43legacy/dma.c:130:19: warning: unused function 'prev_slot'. Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx> Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4642 Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx> --- drivers/net/wireless/broadcom/b43legacy/dma.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/net/wireless/broadcom/b43legacy/dma.c b/drivers/net/wireless/broadcom/b43legacy/dma.c index 6869f2bf1bae..60e41de72f29 100644 --- a/drivers/net/wireless/broadcom/b43legacy/dma.c +++ b/drivers/net/wireless/broadcom/b43legacy/dma.c @@ -127,14 +127,6 @@ static inline int next_slot(struct b43legacy_dmaring *ring, int slot) return slot + 1; } -static inline int prev_slot(struct b43legacy_dmaring *ring, int slot) -{ - B43legacy_WARN_ON(!(slot >= 0 && slot <= ring->nr_slots - 1)); - if (slot == 0) - return ring->nr_slots - 1; - return slot - 1; -} - #ifdef CONFIG_B43LEGACY_DEBUG static void update_max_used_slots(struct b43legacy_dmaring *ring, int current_used_slots) -- 2.20.1.7.g153144c