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mac80211: fix variable truncation on 32-bit

Stephen Rothwell reported these warnings from a 32-bit build:

  net/mac80211/mlme.c:1771: warning: left shift count >= width of type
  net/mac80211/mlme.c:1772: warning: left shift count >= width of type
  net/mac80211/mlme.c:1773: warning: left shift count >= width of type
  net/mac80211/mlme.c:1774: warning: left shift count >= width of type
  net/mac80211/mlme.c:1775: warning: left shift count >= width of type

This shows a bug in my code -- BIT(X) uses just "1 << X" which means
a 32-bit integer on 32-bit platforms, but the code here needs a u64
on all platforms. Fix this by using "1ULL << X" instead of BIT(X).

Thanks Stephen!

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg 16 years ago
parent
commit
1d4df3a50f
1 changed files with 6 additions and 6 deletions
  1. 6 6
      net/mac80211/mlme.c

+ 6 - 6
net/mac80211/mlme.c

@@ -1743,12 +1743,12 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
  *	look out for other vendor IEs.
  */
 static const u64 care_about_ies =
-	BIT(WLAN_EID_COUNTRY) |
-	BIT(WLAN_EID_ERP_INFO) |
-	BIT(WLAN_EID_CHANNEL_SWITCH) |
-	BIT(WLAN_EID_PWR_CONSTRAINT) |
-	BIT(WLAN_EID_HT_CAPABILITY) |
-	BIT(WLAN_EID_HT_INFORMATION);
+	(1ULL << WLAN_EID_COUNTRY) |
+	(1ULL << WLAN_EID_ERP_INFO) |
+	(1ULL << WLAN_EID_CHANNEL_SWITCH) |
+	(1ULL << WLAN_EID_PWR_CONSTRAINT) |
+	(1ULL << WLAN_EID_HT_CAPABILITY) |
+	(1ULL << WLAN_EID_HT_INFORMATION);
 
 static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				     struct ieee80211_mgmt *mgmt,