mac80211: minstrel_ht: sample_table can be __read_mostly

The sample table is initialized only once at module start, so
is really __read_mostly. Additionally, the code to init it can
be marked __init since it will never be needed again, it is
likely automatically inlined into the __init function already
by the compiler, so this doesn't really make a difference.

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

diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index a6d6cc5c3db4d4ab89d5e63388399c9343f94cb2..bccaf854a309e9434fb9044d0e98082e3de287de 100644 (file)
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -124,7 +124,7 @@ const struct mcs_group minstrel_mcs_groups[] = {
 
 #define MINSTREL_CCK_GROUP     (ARRAY_SIZE(minstrel_mcs_groups) - 1)
 
-static u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES];
+static u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES] __read_mostly;
 
 static void
 minstrel_ht_update_rates(struct minstrel_priv *mp, struct minstrel_ht_sta *mi);
@@ -1048,8 +1048,7 @@ static const struct rate_control_ops mac80211_minstrel_ht = {
 };
 
 
-static void
-init_sample_table(void)
+static void __init init_sample_table(void)
 {
        int col, i, new_idx;
        u8 rnd[MCS_GROUP_RATES];