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Commit 55ded955 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Linus Torvalds
Browse files

lib: add module support to atomic64 tests 

Allow to compile the atomic64 test code either to a loadable module, or
builtin into the kernel.

Link: http://lkml.kernel.org/r/1483470276-10517-3-git-send-email-geert@linux-m68k.org


Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent ba95b045

lib/Kconfig.debug

+3 −2
Original line number Diff line number Diff line
@@ -1790,9 +1790,10 @@ config PERCPU_TEST 
	  If unsure, say N.



config ATOMIC64_SELFTEST

	bool "Perform an atomic64_t self-test at boot"

	tristate "Perform an atomic64_t self-test"

	help

	  Enable this option to test the atomic64_t functions at boot.

	  Enable this option to test the atomic64_t functions at boot or

	  at module load time.



	  If unsure, say N.

lib/atomic64_test.c

+8 −2
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@ 
#include <linux/bug.h>

#include <linux/kernel.h>

#include <linux/atomic.h>

#include <linux/module.h>



#ifdef CONFIG_X86

#include <asm/cpufeature.h>	/* for boot_cpu_has below */
@@ -241,7 +242,7 @@ static __init void test_atomic64(void) 
	BUG_ON(v.counter != r);

}



static __init int test_atomics(void)

static __init int test_atomics_init(void)

{

	test_atomic();

	test_atomic64();
@@ -264,4 +265,9 @@ static __init int test_atomics(void) 
	return 0;

}



core_initcall(test_atomics);
 
static __exit void test_atomics_exit(void) {}



module_init(test_atomics_init);

module_exit(test_atomics_exit);



MODULE_LICENSE("GPL");