diff options
| author | David S. Miller <davem@davemloft.net> | 2017-07-21 03:38:43 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-21 03:38:43 +0100 |
| commit | 7a68ada6ec7d88c68057d3a4c2a517eb94289976 (patch) | |
| tree | 51cd586e74fc92bfbdf382fa1544a235d908b25c /lib/atomic64_test.c | |
| parent | 760446f967678e14ee1b6464ee1bb8562f299fa6 (diff) | |
| parent | 96080f697786e0a30006fcbcc5b53f350fcb3e9f (diff) | |
| download | linux-7a68ada6ec7d88c68057d3a4c2a517eb94289976.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'lib/atomic64_test.c')
| -rw-r--r-- | lib/atomic64_test.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/atomic64_test.c b/lib/atomic64_test.c index fd70c0e0e673..62ab629f51ca 100644 --- a/lib/atomic64_test.c +++ b/lib/atomic64_test.c @@ -153,8 +153,10 @@ static __init void test_atomic64(void) long long v0 = 0xaaa31337c001d00dLL; long long v1 = 0xdeadbeefdeafcafeLL; long long v2 = 0xfaceabadf00df001LL; + long long v3 = 0x8000000000000000LL; long long onestwos = 0x1111111122222222LL; long long one = 1LL; + int r_int; atomic64_t v = ATOMIC64_INIT(v0); long long r = v0; @@ -240,6 +242,11 @@ static __init void test_atomic64(void) BUG_ON(!atomic64_inc_not_zero(&v)); r += one; BUG_ON(v.counter != r); + + /* Confirm the return value fits in an int, even if the value doesn't */ + INIT(v3); + r_int = atomic64_inc_not_zero(&v); + BUG_ON(!r_int); } static __init int test_atomics_init(void) |