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drivers/sbus/char: Micro-optimization in display7seg.c
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
sbus
/
char
/
display7seg.c
diff --git
a/drivers/sbus/char/display7seg.c
b/drivers/sbus/char/display7seg.c
index b48899ce850662df7f08eba8e8a61c5851de94bc..2b0ce7c350ee6b9def4c1106f0dbcbd732e58eb7 100644
(file)
--- a/
drivers/sbus/char/display7seg.c
+++ b/
drivers/sbus/char/display7seg.c
@@
-144,10
+144,7
@@
static long d7s_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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;
}