lib: Add self-test for atomic64_t

This patch adds self-test on boot code for atomic64_t.

This has been used to test the later changes in this patchset.

Signed-off-by: Luca Barbieri <luca@luca-barbieri.com>
LKML-Reference: <1267005265-27958-4-git-send-email-luca@luca-barbieri.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 25c3ed594c54..3676c517a073 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1054,6 +1054,13 @@ config DMA_API_DEBUG
           This option causes a performance degredation.  Use only if you want
           to debug device drivers. If unsure, say N.
 
+config ATOMIC64_SELFTEST
+        bool "Perform an atomic64_t self-test at boot"
+        help
+          Enable this option to test the atomic64_t functions at boot.
+
+          If unsure, say N.
+
 source "samples/Kconfig"
 
 source "lib/Kconfig.kgdb"