From 1d4df3a50f40a731fc03c86a76535ed141b0e4bc Mon Sep 17 00:00:00 2001 From: Johannes Berg <johannes@sipsolutions.net> Date: Wed, 22 Apr 2009 11:25:43 +0200 Subject: [PATCH] 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> --- net/mac80211/mlme.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 1b0b7aa387ee..e819c02d13f0 100644 --- a/net/mac80211/mlme.c +++ b/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, -- GitLab