Patch "base: arch_topology: fix section mismatch build warnings" has been added to the 4.13-stable tree

This is a note to let you know that I've just added the patch titled

base: arch_topology: fix section mismatch build warnings

to the 4.13-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:
base-arch_topology-fix-section-mismatch-build-warnings.patch
and it can be found in the queue-4.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Sudeep Holla <[email protected]>
Date: Thu, 7 Sep 2017 15:16:05 +0100
Subject: base: arch_topology: fix section mismatch build warnings

From: Sudeep Holla <[email protected]>

commit 452562abb5b76c14449dead2a7113f641893e8bc upstream.

Commit 2ef7a2953c81 ("arm, arm64: factorize common cpu capacity default code") introduced init_cpu_capacity_callback and init_cpu_capacity_notifier which are referenced from initcall and are missing __init{,data} annotations resulting the below section mismatch build warnings.

"WARNING: vmlinux.o(.text+0xbab790): Section mismatch in reference from the function init_cpu_capacity_callback() to the variable .init.text:$x The function init_cpu_capacity_callback() references the variable __init $x. This is often because init_cpu_capacity_callback lacks a __init annotation or the annotation of $x is wrong."

This patch fixes the above build warnings by adding the required annotations.

---
 drivers/base/arch_topology.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

@@ -160,12 +160,12 @@ int __init topology_parse_cpu_capacity(s
 }
 
 #ifdef CONFIG_CPU_FREQ
-static cpumask_var_t cpus_to_visit;
-static bool cap_parsing_done;
-static void parsing_done_workfn(struct work_struct *work);
-static DECLARE_WORK(parsing_done_work, parsing_done_workfn);
+static bool cap_parsing_done __initdata;
+static cpumask_var_t cpus_to_visit __initdata;
+static void __init parsing_done_workfn(struct work_struct *work);
+static __initdata DECLARE_WORK(parsing_done_work, parsing_done_workfn);
 
-static int
+static int __init
 init_cpu_capacity_callback(struct notifier_block *nb,
 			   unsigned long val,
 			   void *data)

@@ -200,7 +200,7 @@ init_cpu_capacity_callback(struct notifi
 	return 0;
 }
 
-static struct notifier_block init_cpu_capacity_notifier = {
+static struct notifier_block init_cpu_capacity_notifier __initdata = {
 	.notifier_call = init_cpu_capacity_callback,
 };
 

@@ -226,7 +226,7 @@ static int __init register_cpufreq_notif
 }
 core_initcall(register_cpufreq_notifier);
 
-static void parsing_done_workfn(struct work_struct *work)
+static void __init parsing_done_workfn(struct work_struct *work)
 {
 	cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
 					 CPUFREQ_POLICY_NOTIFIER);

Patches currently in stable-queue which might be from [email protected] are

queue-4.13/base-arch_topology-fix-section-mismatch-build-warnings.patch