sched/core: Convert ___assert_task_state() link time assert to BUILD_BUG_ON()
authorIngo Molnar <mingo@kernel.org>
Fri, 3 Feb 2017 11:22:54 +0000 (12:22 +0100)
committerIngo Molnar <mingo@kernel.org>
Thu, 2 Mar 2017 07:42:23 +0000 (08:42 +0100)
commitc930b2c0de32f45ce8f67affe936ce7a05b07b00
tree5a9d05bfeab3359d87ae9094572e64bfff97e743
parent9ccd27cc2e8bfbec502d7c64a353dc4489536b81
sched/core: Convert ___assert_task_state() link time assert to BUILD_BUG_ON()

The length of TASK_STATE_TO_CHAR_STR was still checked using the old
link-time manual error method - convert it to BUILD_BUG_ON(). This
has a couple of advantages:

 - it's more obvious what's going on

 - it reduces the size and complexity of <linux/sched.h>

 - BUILD_BUG_ON() will fail during compilation, with a clearer
   error message than the link time assert.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
include/linux/sched.h
kernel/sched/core.c