Commit-ID:  993647a293814dd47ae41d38657fda6e4ab04e33
Gitweb:     http://git.kernel.org/tip/993647a293814dd47ae41d38657fda6e4ab04e33
Author:     Arvind Yadav <arvind.yadav...@gmail.com>
AuthorDate: Thu, 29 Jun 2017 17:40:47 +0530
Committer:  Ingo Molnar <mi...@kernel.org>
CommitDate: Fri, 30 Jun 2017 09:34:39 +0200

cpu/hotplug: Constify attribute_group structures

attribute_groups are not supposed to change at runtime. All functions
working with attribute_groups provided by <linux/sysfs.h> work with const
attribute_group.

So mark the non-const structs as const:

File size before:
   text    data     bss     dec     hex filename
  12582   15361      20   27963    6d3b kernel/cpu.o

File size After adding 'const':
   text    data     bss     dec     hex filename
  12710   15265      20   27995    6d5b kernel/cpu.o

Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: anna-ma...@linutronix.de
Cc: bige...@linutronix.de
Cc: boris.ostrov...@oracle.com
Cc: rcoch...@linutronix.de
Link: 
http://lkml.kernel.org/r/f9079e94e12b36d245e7adbf67d312bc5d0250c6.1498737970.git.arvind.yadav...@gmail.com
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
 kernel/cpu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index d0f5f54..b69c058 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1629,7 +1629,7 @@ static struct attribute *cpuhp_cpu_attrs[] = {
        NULL
 };
 
-static struct attribute_group cpuhp_cpu_attr_group = {
+static const struct attribute_group cpuhp_cpu_attr_group = {
        .attrs = cpuhp_cpu_attrs,
        .name = "hotplug",
        NULL
@@ -1661,7 +1661,7 @@ static struct attribute *cpuhp_cpu_root_attrs[] = {
        NULL
 };
 
-static struct attribute_group cpuhp_cpu_root_attr_group = {
+static const struct attribute_group cpuhp_cpu_root_attr_group = {
        .attrs = cpuhp_cpu_root_attrs,
        .name = "hotplug",
        NULL

Reply via email to