ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/kernel/mac80211/patches/subsys/380-mac80211-introduce-aql_enable-node-in-debugfs.patch b/package/kernel/mac80211/patches/subsys/380-mac80211-introduce-aql_enable-node-in-debugfs.patch
new file mode 100644
index 0000000..a7ef62a
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/380-mac80211-introduce-aql_enable-node-in-debugfs.patch
@@ -0,0 +1,111 @@
+From: Lorenzo Bianconi <lorenzo@kernel.org>
+Date: Sat, 9 Jan 2021 18:57:51 +0100
+Subject: [PATCH] mac80211: introduce aql_enable node in debugfs
+
+Introduce aql_enable node in debugfs in order to enable/disable aql.
+This is useful for debugging purpose.
+
+Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
+Link: https://lore.kernel.org/r/e7a934d5d84e4796c4f97ea5de4e66c824296b07.1610214851.git.lorenzo@kernel.org
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/net/mac80211/debugfs.c
++++ b/net/mac80211/debugfs.c
+@@ -281,6 +281,56 @@ static const struct file_operations aql_
+ .llseek = default_llseek,
+ };
+
++static ssize_t aql_enable_read(struct file *file, char __user *user_buf,
++ size_t count, loff_t *ppos)
++{
++ char buf[3];
++ int len;
++
++ len = scnprintf(buf, sizeof(buf), "%d\n",
++ !static_key_false(&aql_disable.key));
++
++ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
++}
++
++static ssize_t aql_enable_write(struct file *file, const char __user *user_buf,
++ size_t count, loff_t *ppos)
++{
++ bool aql_disabled = static_key_false(&aql_disable.key);
++ char buf[3];
++ size_t len;
++
++ if (count > sizeof(buf))
++ return -EINVAL;
++
++ if (copy_from_user(buf, user_buf, count))
++ return -EFAULT;
++
++ buf[sizeof(buf) - 1] = '\0';
++ len = strlen(buf);
++ if (len > 0 && buf[len - 1] == '\n')
++ buf[len - 1] = 0;
++
++ if (buf[0] == '0' && buf[1] == '\0') {
++ if (!aql_disabled)
++ static_branch_inc(&aql_disable);
++ } else if (buf[0] == '1' && buf[1] == '\0') {
++ if (aql_disabled)
++ static_branch_dec(&aql_disable);
++ } else {
++ return -EINVAL;
++ }
++
++ return count;
++}
++
++static const struct file_operations aql_enable_ops = {
++ .write = aql_enable_write,
++ .read = aql_enable_read,
++ .open = simple_open,
++ .llseek = default_llseek,
++};
++
+ static ssize_t force_tx_status_read(struct file *file,
+ char __user *user_buf,
+ size_t count,
+@@ -569,6 +619,7 @@ void debugfs_hw_add(struct ieee80211_loc
+ DEBUGFS_ADD(power);
+ DEBUGFS_ADD(hw_conf);
+ DEBUGFS_ADD_MODE(force_tx_status, 0600);
++ DEBUGFS_ADD_MODE(aql_enable, 0600);
+
+ if (local->ops->wake_tx_queue)
+ DEBUGFS_ADD_MODE(aqm, 0600);
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -1145,6 +1145,8 @@ enum mac80211_scan_state {
+ SCAN_ABORT,
+ };
+
++DECLARE_STATIC_KEY_FALSE(aql_disable);
++
+ struct ieee80211_local {
+ /* embed the driver visible part.
+ * don't cast (use the static inlines below), but we keep
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -3921,6 +3921,8 @@ void __ieee80211_schedule_txq(struct iee
+ }
+ EXPORT_SYMBOL(__ieee80211_schedule_txq);
+
++DEFINE_STATIC_KEY_FALSE(aql_disable);
++
+ bool ieee80211_txq_airtime_check(struct ieee80211_hw *hw,
+ struct ieee80211_txq *txq)
+ {
+@@ -3930,6 +3932,9 @@ bool ieee80211_txq_airtime_check(struct
+ if (!wiphy_ext_feature_isset(local->hw.wiphy, NL80211_EXT_FEATURE_AQL))
+ return true;
+
++ if (static_branch_unlikely(&aql_disable))
++ return true;
++
+ if (!txq->sta)
+ return true;
+