rfkill: use variable instead of duplicating the expression

RFKILL_BLOCK_SW value have just been saved to prev, no need to check it
again in the if expression. This makes code a little bit easier to read.

Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/rfkill/core.c b/net/rfkill/core.c
index 1664399..061ed37 100644 (file)
--- a/net/rfkill/core.c
+++ b/net/rfkill/core.c
@@ -287,7 +287,7 @@ static void rfkill_set_block(struct rfkill *rfkill, bool blocked)
        spin_lock_irqsave(&rfkill->lock, flags);
        prev = rfkill->state & RFKILL_BLOCK_SW;
 
-       if (rfkill->state & RFKILL_BLOCK_SW)
+       if (prev)
                rfkill->state |= RFKILL_BLOCK_SW_PREV;
        else
                rfkill->state &= ~RFKILL_BLOCK_SW_PREV;