drivers/sbus/char: Micro-optimization in display7seg.c
Flipping a bit doesn't need four lines of code; and gcc seems to
actually generate two branches.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c
index b48899c..2b0ce7c 100644
--- a/drivers/sbus/char/display7seg.c
+++ b/drivers/sbus/char/display7seg.c
@@ -144,10 +144,7 @@
case D7SIOCTM:
/* toggle device mode-- flip display orientation */
- if (regs & D7S_FLIP)
- regs &= ~D7S_FLIP;
- else
- regs |= D7S_FLIP;
+ regs ^= D7S_FLIP;
writeb(regs, p->regs);
break;
}