kernel: use macros from compiler.h instead of __attribute__((...))

To increase compiler portability there is <linux/compiler.h> which
provides convenience macros for various gcc constructs.  Eg: __weak for
__attribute__((weak)).  I've replaced all instances of gcc attributes
with the right macro in the kernel subsystem.

Signed-off-by: Gideon Israel Dsouza <gidisrael@gmail.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 1d1b87b..80bd491 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -73,6 +73,7 @@
 #include <linux/init_task.h>
 #include <linux/binfmts.h>
 #include <linux/context_tracking.h>
+#include <linux/compiler.h>
 
 #include <asm/switch_to.h>
 #include <asm/tlb.h>
@@ -6498,7 +6499,7 @@ static cpumask_var_t fallback_doms;
  * cpu core maps. It is supposed to return 1 if the topology changed
  * or 0 if it stayed the same.
  */
-int __attribute__((weak)) arch_update_cpu_topology(void)
+int __weak arch_update_cpu_topology(void)
 {
 	return 0;
 }