ath9k_hw: optimize interrupt mask changes
OProfile showed that ath9k was spending way too much time in
ath9k_hw_set_interrupts. Since most of the interrupt mask changes only
need to globally enable/disable interrupts, it makes sense to split
this part into separate functions, replacing all calls to
ath9k_hw_set_interrupts(ah, 0) with ath9k_hw_disable_interrupts(ah).
ath9k_hw_set_interrupts(ah, ah->imask) only gets changed to
ath9k_hw_enable_interrupts(ah), whenever ah->imask was not changed
since the point where interrupts were disabled.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 7c1a34d..538c676 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -669,6 +669,7 @@
struct ath_hw;
struct ath9k_channel;
+enum ath9k_int;
u32 ath9k_hw_gettxbuf(struct ath_hw *ah, u32 q);
void ath9k_hw_puttxbuf(struct ath_hw *ah, u32 q, u32 txdp);
@@ -700,8 +701,9 @@
/* Interrupt Handling */
bool ath9k_hw_intrpend(struct ath_hw *ah);
-enum ath9k_int ath9k_hw_set_interrupts(struct ath_hw *ah,
- enum ath9k_int ints);
+void ath9k_hw_set_interrupts(struct ath_hw *ah, enum ath9k_int ints);
+void ath9k_hw_enable_interrupts(struct ath_hw *ah);
+void ath9k_hw_disable_interrupts(struct ath_hw *ah);
void ar9002_hw_attach_mac_ops(struct ath_hw *ah);