Initial commit

target/linux/generic/backport-6.6/780-04-v6.8-r8169-improve-handling-task-scheduling.patch

@@ -0,0 +1,41 @@
+From 127532cd0f060ebc3c4cbca81b6438728ad5896e Mon Sep 17 00:00:00 2001
+From: Heiner Kallweit <hkallweit1@gmail.com>
+Date: Mon, 27 Nov 2023 18:20:11 +0100
+Subject: [PATCH] r8169: improve handling task scheduling
+
+If we know that the task is going to be a no-op, don't even schedule it.
+And remove the check for netif_running() in the worker function, the
+check for flag RTL_FLAG_TASK_ENABLED is sufficient. Note that we can't
+remove the check for flag RTL_FLAG_TASK_ENABLED in the worker function
+because we have no guarantee when it will be executed.
+
+Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
+Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
+Link: https://lore.kernel.org/r/c65873a3-7394-4107-99a7-83f20030779c@gmail.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/ethernet/realtek/r8169_main.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/ethernet/realtek/r8169_main.c
++++ b/drivers/net/ethernet/realtek/r8169_main.c
+@@ -2279,6 +2279,9 @@ u16 rtl8168h_2_get_adc_bias_ioffset(stru
+ 
+ static void rtl_schedule_task(struct rtl8169_private *tp, enum rtl_flag flag)
+ {
++	if (!test_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags))
++		return;
++
+ 	set_bit(flag, tp->wk.flags);
+ 	schedule_work(&tp->wk.work);
+ }
+@@ -4526,8 +4529,7 @@ static void rtl_task(struct work_struct
+ 
+ 	rtnl_lock();
+ 
+-	if (!netif_running(tp->dev) ||
+-	    !test_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags))
++	if (!test_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags))
+ 		goto out_unlock;
+ 
+ 	if (test_and_clear_bit(RTL_FLAG_TASK_TX_TIMEOUT, tp->wk.flags)) {