Commit 993647a2 authored Jun 29, 2017 by Arvind Yadav Committed by Ingo Molnar Jun 30, 2017

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.cs@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: anna-maria@linutronix.de
Cc: bigeasy@linutronix.de
Cc: boris.ostrovsky@oracle.com
Cc: rcochran@linutronix.de
Link: http://lkml.kernel.org/r/f9079e94e12b36d245e7adbf67d312bc5d0250c6.1498737970.git.arvind.yadav.cs@gmail.com


Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent 3e401f7a

kernel/cpu.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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