Messages in this thread Patch in this message | | | Date | Mon, 13 Jul 2020 13:51:41 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH] rwsem: fix commas in initialisation |
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On Sat, Jul 11, 2020 at 05:59:54PM +0300, Alexey Dobriyan wrote: > Leading comma prevents arbitrary reordering of initialisation clauses. > The whole point of C99 initialisation is to allow any such reordering.
I'm conflicted on this argument, the only reason I'd be inclined to take this patch is that it allows fixing the initialization order to not be random.
That is, I'd fold in the below.
--- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -89,9 +89,9 @@ static inline int rwsem_is_locked(struct #define __RWSEM_INITIALIZER(name) \ { __RWSEM_INIT_COUNT(name), \ .owner = ATOMIC_LONG_INIT(0), \ - .wait_list = LIST_HEAD_INIT((name).wait_list), \ - .wait_lock = __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock),\ __RWSEM_OPT_INIT(name) \ + .wait_lock = __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock),\ + .wait_list = LIST_HEAD_INIT((name).wait_list), \ __DEBUG_RWSEM_INITIALIZER(name) \ __RWSEM_DEP_MAP_INIT(name) }
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