| Subject | [PATCH 39/45] C++: Fix spinlock initialisation | From | David Howells <> | Date | Sun, 01 Apr 2018 21:44:09 +0100 |
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Fix a couple of bits of spinlock initialisation:
(1) owner_cpu is unsigned: set to UINT_MAX rather than -1.
(2) Don't need to cast the result of __SPIN_LOCK_INITIALIZER().
Signed-off-by: David Howells <dhowells@redhat.com> ---
include/linux/spinlock_types.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/spinlock_types.h b/include/linux/spinlock_types.h index 24b4e6f2c1a2..d1ab81ee85fd 100644 --- a/include/linux/spinlock_types.h +++ b/include/linux/spinlock_types.h @@ -41,7 +41,7 @@ typedef struct raw_spinlock { #ifdef CONFIG_DEBUG_SPINLOCK # define SPIN_DEBUG_INIT(lockname) \ .magic = SPINLOCK_MAGIC, \ - .owner_cpu = -1, \ + .owner_cpu = UINT_MAX, \ .owner = SPINLOCK_OWNER_INIT, #else # define SPIN_DEBUG_INIT(lockname) @@ -76,7 +76,7 @@ typedef struct spinlock { { { .rlock = __RAW_SPIN_LOCK_INITIALIZER(lockname) } } #define __SPIN_LOCK_UNLOCKED(lockname) \ - (spinlock_t ) __SPIN_LOCK_INITIALIZER(lockname) + __SPIN_LOCK_INITIALIZER(lockname) #define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
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