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authorJohannes Berg <johannes.berg@intel.com>2011-09-29 16:04:36 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-09-30 15:57:19 -0400
commitc2c98fdeb5c897499644eb247285c8e3dacc6450 (patch)
treeaaa9c0f8dd16ab896308470e21a0813041094670 /net/mac80211/debugfs_sta.c
parentdeeaee197b0fa694ba6c8f02cdb57b3be7115b4f (diff)
downloadop-kernel-dev-c2c98fdeb5c897499644eb247285c8e3dacc6450.zip
op-kernel-dev-c2c98fdeb5c897499644eb247285c8e3dacc6450.tar.gz
mac80211: optimise station flags
The flaglock in struct sta_info has long been something that I wanted to get rid of, this finally does the conversion to atomic bitops. The conversion itself is straight-forward in most places, a few things needed to change a bit since we can no longer use multiple bits at the same time. On x86-64, this is a fairly significant code size reduction: text data bss dec hex 427861 23648 1008 452517 6e7a5 before 425383 23648 976 450007 6ddd7 after Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/debugfs_sta.c')
-rw-r--r--net/mac80211/debugfs_sta.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 20ec2b0..56bb68b 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -58,17 +58,17 @@ static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
{
char buf[100];
struct sta_info *sta = file->private_data;
- u32 staflags = get_sta_flags(sta);
+
int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
- staflags & WLAN_STA_AUTH ? "AUTH\n" : "",
- staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
- staflags & WLAN_STA_PS_STA ? "PS (sta)\n" : "",
- staflags & WLAN_STA_PS_DRIVER ? "PS (driver)\n" : "",
- staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
- staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
- staflags & WLAN_STA_WME ? "WME\n" : "",
- staflags & WLAN_STA_WDS ? "WDS\n" : "",
- staflags & WLAN_STA_MFP ? "MFP\n" : "");
+ test_sta_flag(sta, WLAN_STA_AUTH) ? "AUTH\n" : "",
+ test_sta_flag(sta, WLAN_STA_ASSOC) ? "ASSOC\n" : "",
+ test_sta_flag(sta, WLAN_STA_PS_STA) ? "PS (sta)\n" : "",
+ test_sta_flag(sta, WLAN_STA_PS_DRIVER) ? "PS (driver)\n" : "",
+ test_sta_flag(sta, WLAN_STA_AUTHORIZED) ? "AUTHORIZED\n" : "",
+ test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE) ? "SHORT PREAMBLE\n" : "",
+ test_sta_flag(sta, WLAN_STA_WME) ? "WME\n" : "",
+ test_sta_flag(sta, WLAN_STA_WDS) ? "WDS\n" : "",
+ test_sta_flag(sta, WLAN_STA_MFP) ? "MFP\n" : "");
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
STA_OPS(flags);
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