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authorBob Copeland <me@bobcopeland.com>2013-02-26 22:41:52 +0400
committerJohn W. Linville <linville@tuxdriver.com>2013-03-07 01:25:47 +0400
commit4ba910db199779470685dd962d626e1ffc657f7e (patch)
tree1ac23c4863bf90934bc6e0b087012861d078e19b /drivers/net/wireless/ath
parent2dcc26e37c55b9db2f3a0ea6e4b931e37ca286d2 (diff)
downloadlinux-4ba910db199779470685dd962d626e1ffc657f7e.tar.xz
ath9k: simplify ATH_EP_RND
Remove the embedded branch to make the ATH_EP_RND macro a little clearer. The new version also generates better code, saving 24 bytes of text: text data bss dec hex filename 87858 1641 24 89523 15db3 ath9k_orig.ko 87834 1641 24 89499 15d9b ath9k_new.ko Although neither version handles negative values particularly well, the lone caller clamps all negative values to zero anyway. I have verified that the results are the same for the range of possible positive rssi values. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath')
-rw-r--r--drivers/net/wireless/ath/ath9k/common.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/common.h b/drivers/net/wireless/ath/ath9k/common.h
index 5f845beeb18b..eca95a0c3890 100644
--- a/drivers/net/wireless/ath/ath9k/common.h
+++ b/drivers/net/wireless/ath/ath9k/common.h
@@ -40,7 +40,7 @@
x = ATH_LPF_RSSI((x), ATH_RSSI_IN((y)), ATH_RSSI_LPF_LEN); \
} while (0)
#define ATH_EP_RND(x, mul) \
- ((((x)%(mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))
+ (((x) + ((mul)/2)) / (mul))
int ath9k_cmn_padpos(__le16 frame_control);
int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);