From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 5 Jul 2012 11:14:18 +0000 (+0200)
Subject: mac80211: optimize ieee80211_rx_status struct layout
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=30f422925c39edf61cbcf6d35140d726402d4b04;p=linux-beck.git

mac80211: optimize ieee80211_rx_status struct layout

We waste a lot of space in this struct because it uses
int values where smaller ones would be sufficient. The
upcoming A-MPDU information needs some space, optimize
the struct now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index c5dbb46debb0..7300cb51dd5f 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -709,13 +709,13 @@ enum mac80211_rx_flags {
  */
 struct ieee80211_rx_status {
 	u64 mactime;
-	enum ieee80211_band band;
-	int freq;
-	int signal;
-	int antenna;
-	int rate_idx;
-	int flag;
-	unsigned int rx_flags;
+	u16 flag;
+	u16 freq;
+	u8 rate_idx;
+	u8 rx_flags;
+	u8 band;
+	u8 antenna;
+	s8 signal;
 };
 
 /**