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authorJohannes Berg <johannes@sipsolutions.net>2009-03-13 13:44:18 +0300
committerJohn W. Linville <linville@tuxdriver.com>2009-03-28 03:13:03 +0300
commit827b1fb44b7e41377a5498b9d070a11dfae2c283 (patch)
tree5a54acadb35e35d64e4db0cfde5a7105c85916e2 /net/mac80211/debugfs.c
parent3e3ccb3d9b8d5a1b65b34e1be2decf213ba3bebb (diff)
downloadlinux-827b1fb44b7e41377a5498b9d070a11dfae2c283.tar.xz
mac80211: resume properly, add suspend/resume test
When mac80211 resumes, it currently doesn't reconfigure the interfaces entirely and also doesn't reconfigure BSS information -- fix this. Also, to be able to test this, add a debugfs file that just calls the suspend/resume code to see what happens when we go through that, without needing the time-consuming suspend/resume cycle. (Original version broke the build for CONFIG_PM=n. Define alternative functions for that situation. -- JWL) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/debugfs.c')
-rw-r--r--net/mac80211/debugfs.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index e37f557de3f3..210b9b6fecd2 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -40,6 +40,10 @@ static const struct file_operations name## _ops = { \
local->debugfs.name = debugfs_create_file(#name, 0400, phyd, \
local, &name## _ops);
+#define DEBUGFS_ADD_MODE(name, mode) \
+ local->debugfs.name = debugfs_create_file(#name, mode, phyd, \
+ local, &name## _ops);
+
#define DEBUGFS_DEL(name) \
debugfs_remove(local->debugfs.name); \
local->debugfs.name = NULL;
@@ -113,6 +117,24 @@ static const struct file_operations tsf_ops = {
.open = mac80211_open_file_generic
};
+static ssize_t reset_write(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+
+ rtnl_lock();
+ __ieee80211_suspend(&local->hw);
+ __ieee80211_resume(&local->hw);
+ rtnl_unlock();
+
+ return count;
+}
+
+static const struct file_operations reset_ops = {
+ .write = reset_write,
+ .open = mac80211_open_file_generic,
+};
+
/* statistics stuff */
#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
@@ -254,6 +276,7 @@ void debugfs_hw_add(struct ieee80211_local *local)
DEBUGFS_ADD(total_ps_buffered);
DEBUGFS_ADD(wep_iv);
DEBUGFS_ADD(tsf);
+ DEBUGFS_ADD_MODE(reset, 0200);
statsd = debugfs_create_dir("statistics", phyd);
local->debugfs.statistics = statsd;
@@ -308,6 +331,7 @@ void debugfs_hw_del(struct ieee80211_local *local)
DEBUGFS_DEL(total_ps_buffered);
DEBUGFS_DEL(wep_iv);
DEBUGFS_DEL(tsf);
+ DEBUGFS_DEL(reset);
DEBUGFS_STATS_DEL(transmitted_fragment_count);
DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);