This is a note to let you know that I've just added the patch titled
PM / runtime: Update links_count also if !CONFIG_SRCU
to the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pm-runtime-update-links_count-also-if-config_srcu.patch
and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 433986c2c265d106d6a8e88006e0131fefc92b7b Mon Sep 17 00:00:00 2001
From: Lukas Wunner <lukas@xxxxxxxxx>
Date: Sat, 10 Feb 2018 19:13:58 +0100
Subject: PM / runtime: Update links_count also if !CONFIG_SRCU
From: Lukas Wunner <lukas@xxxxxxxxx>
commit 433986c2c265d106d6a8e88006e0131fefc92b7b upstream.
Commit baa8809f6097 (PM / runtime: Optimize the use of device links)
added an invocation of pm_runtime_drop_link() to __device_link_del().
However there are two variants of that function, one for CONFIG_SRCU and
another for !CONFIG_SRCU, and the commit only modified the former.
Fixes: baa8809f6097 (PM / runtime: Optimize the use of device links)
Cc: v4.10+ <stable@xxxxxxxxxxxxxxx> # v4.10+
Signed-off-by: Lukas Wunner <lukas@xxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/base/core.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -313,6 +313,9 @@ static void __device_link_del(struct dev
dev_info(link->consumer, "Dropping the link to %s\n",
dev_name(link->supplier));
+ if (link->flags & DL_FLAG_PM_RUNTIME)
+ pm_runtime_drop_link(link->consumer);
+
list_del(&link->s_node);
list_del(&link->c_node);
device_link_free(link);
Patches currently in stable-queue which might be from lukas@xxxxxxxxx are
queue-4.15/pm-runtime-update-links_count-also-if-config_srcu.patch