IB: Use DEFINE_SPINLOCK() for static spinlocks
Rather than just defining static spinlock_t variables and then initializing them later in init functions, simply define them with DEFINE_SPINLOCK() and remove the calls to spin_lock_init(). This cleans up the source a tad and also shrinks the compiled code; eg on x86-64: add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-40 (-40) function old new delta ib_uverbs_init 336 326 -10 ib_mad_init_module 147 137 -10 ib_sa_init 123 103 -20 Signed-off-by: Roland Dreier <rolandd@cisco.com>
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@ -51,8 +51,7 @@ static struct list_head ib_mad_port_list;
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static u32 ib_mad_client_id = 0;
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/* Port list lock */
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static spinlock_t ib_mad_port_list_lock;
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static DEFINE_SPINLOCK(ib_mad_port_list_lock);
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/* Forward declarations */
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static int method_in_use(struct ib_mad_mgmt_method_table **method,
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@ -2984,8 +2983,6 @@ static int __init ib_mad_init_module(void)
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{
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int ret;
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spin_lock_init(&ib_mad_port_list_lock);
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ib_mad_cache = kmem_cache_create("ib_mad",
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sizeof(struct ib_mad_private),
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0,
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@ -3021,4 +3018,3 @@ static void __exit ib_mad_cleanup_module(void)
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module_init(ib_mad_init_module);
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module_exit(ib_mad_cleanup_module);
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@ -109,10 +109,10 @@ static struct ib_client sa_client = {
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.remove = ib_sa_remove_one
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};
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static spinlock_t idr_lock;
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static DEFINE_SPINLOCK(idr_lock);
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static DEFINE_IDR(query_idr);
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static spinlock_t tid_lock;
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static DEFINE_SPINLOCK(tid_lock);
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static u32 tid;
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#define PATH_REC_FIELD(field) \
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@ -1077,9 +1077,6 @@ static int __init ib_sa_init(void)
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{
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int ret;
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spin_lock_init(&idr_lock);
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spin_lock_init(&tid_lock);
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get_random_bytes(&tid, sizeof tid);
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ret = ib_register_client(&sa_client);
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@ -73,7 +73,7 @@ DEFINE_IDR(ib_uverbs_cq_idr);
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DEFINE_IDR(ib_uverbs_qp_idr);
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DEFINE_IDR(ib_uverbs_srq_idr);
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static spinlock_t map_lock;
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static DEFINE_SPINLOCK(map_lock);
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static struct ib_uverbs_device *dev_table[IB_UVERBS_MAX_DEVICES];
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static DECLARE_BITMAP(dev_map, IB_UVERBS_MAX_DEVICES);
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@ -836,8 +836,6 @@ static int __init ib_uverbs_init(void)
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{
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int ret;
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spin_lock_init(&map_lock);
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ret = register_chrdev_region(IB_UVERBS_BASE_DEV, IB_UVERBS_MAX_DEVICES,
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"infiniband_verbs");
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if (ret) {
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