diff options
| author |   Rob Herring <robh@kernel.org> | 2018-03-08 09:21:07 -0600 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2018-03-08 09:21:07 -0600 |
| commit | c679fa6e3aaa5c58fc514b5b88cfa82774b8d390 (patch) | |
| tree | 0c10b339368bd1795152a66a4e245e6f654fb3ec /include/asm-generic/bitops/lock.h | |
| parent | of: unittest: fix an error test in of_unittest_overlay_8() (diff) | |
| parent | scripts: turn off some new dtc warnings by default (diff) | |
Merge branch 'dtc-update' into dt/next
Diffstat (limited to 'include/asm-generic/bitops/lock.h')
| -rw-r--r-- | include/asm-generic/bitops/lock.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-generic/bitops/lock.h b/include/asm-generic/bitops/lock.h index bc397573c43a..67ab280ad134 100644 --- a/include/asm-generic/bitops/lock.h +++ b/include/asm-generic/bitops/lock.h @@ -7,7 +7,8 @@ * @nr: Bit to set * @addr: Address to count from * - * This operation is atomic and provides acquire barrier semantics. + * This operation is atomic and provides acquire barrier semantics if + * the returned value is 0. * It can be used to implement bit locks. */ #define test_and_set_bit_lock(nr, addr) test_and_set_bit(nr, addr) |