b43legacy: Remove unnecessary MMIO in interrupt hotpath

This removes unnecessary MMIO accesses in the interrupt hotpath. The
patch by Michael Buesch for b43 has been ported to b43legacy.

Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h
index da59ef02b6ef..19a4b0bc0d87 100644
--- a/drivers/net/wireless/b43legacy/b43legacy.h
+++ b/drivers/net/wireless/b43legacy/b43legacy.h
@@ -694,8 +694,8 @@ struct b43legacy_wldev {
         /* Reason code of the last interrupt. */
         u32 irq_reason;
         u32 dma_reason[6];
-        /* saved irq enable/disable state bitfield. */
-        u32 irq_savedstate;
+        /* The currently active generic-interrupt mask. */
+        u32 irq_mask;
         /* Link Quality calculation context. */
         struct b43legacy_noise_calculation noisecalc;
         /* if > 0 MAC is suspended. if == 0 MAC is enabled. */