openwrtv4/package/kernel/mac80211/patches/921-ath10k_init_devices_synchronously.patch
Hauke Mehrtens a8f63a0717 mac80211: update to backports-4.14-rc2
This updates mac80211 to backprots-4.14-rc2.
This was compile and runtime tested with ath9k, ath10k and b43
with multiple stations and ieee80211w and in different scenarios by many
other people.

To create the backports-4.14-rc2-1.tar.xz use this repository:
https://git.kernel.org/pub/scm/linux/kernel/git/backports/backports.git
from tag v4.14-rc2-1

Then run this:
./gentree.py --git-revision v4.14-rc2 --clean  <path to linux repo> ../backports-4.14-rc2-1

This also adapts the ath10k-ct and mt76 driver to the changed cfg80211
APIs and syncs the nl80211.h file in iw with the new version from
backports-4.14-rc2.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-10-01 12:49:11 +02:00

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Diff

From: Sven Eckelmann <sven@open-mesh.com>
Date: Tue, 18 Nov 2014 12:29:28 +0100
Subject: [PATCH] ath10k: Don't initialize devices asynchronously
OpenWrt requires all PHYs to be initialized to create the configuration files
during bootup. ath10k violates this because it delays the creation of the PHY
to a not well defined point in the future.
Forcing the work to be done immediately works around this problem but may also
delay the boot when firmware images cannot be found.
Signed-off-by: Sven Eckelmann <sven@open-mesh.com>
---
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -2445,6 +2445,16 @@ int ath10k_core_register(struct ath10k *
ar->chip_id = chip_id;
queue_work(ar->workqueue, &ar->register_work);
+ /* OpenWrt requires all PHYs to be initialized to create the
+ * configuration files during bootup. ath10k violates this
+ * because it delays the creation of the PHY to a not well defined
+ * point in the future.
+ *
+ * Forcing the work to be done immediately works around this problem
+ * but may also delay the boot when firmware images cannot be found.
+ */
+ flush_workqueue(ar->workqueue);
+
return 0;
}
EXPORT_SYMBOL(ath10k_core_register);