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authorGeert Uytterhoeven <geert@linux-m68k.org>2017-02-25 02:00:55 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-25 04:46:57 +0300
commit55ded9551f9a64f2872df77a954d4c30f8958e82 (patch)
tree89d6c2ee51563b93a3d54bf50413c5ba89dd1db9
parentba95b045e94fe15cace3a7d3a20fbedb2c6a817e (diff)
downloadlinux-55ded9551f9a64f2872df77a954d4c30f8958e82.tar.xz
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: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--lib/Kconfig.debug5
-rw-r--r--lib/atomic64_test.c10
2 files changed, 11 insertions, 4 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 66fb4389f05c..213decb76922 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -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.
diff --git a/lib/atomic64_test.c b/lib/atomic64_test.c
index 46042901130f..fd70c0e0e673 100644
--- a/lib/atomic64_test.c
+++ b/lib/atomic64_test.c
@@ -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");