diff options
| author | Dean Luick <dean.luick@intel.com> | 2016-07-28 19:27:30 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-08-03 05:46:21 +0300 |
| commit | c0946642e574181e00cf8561579e495d08d18988 (patch) | |
| tree | a0d6280c81dce037fb0c936caf7263234e457211 /drivers | |
| parent | 862548dace34690b6a477f32e8ce68b50f7cbdf6 (diff) | |
| download | linux-c0946642e574181e00cf8561579e495d08d18988.tar.xz | |
IB/hfi1: Always expect ops functions
Remove, insert, and invalidate are always provided. No
need to test.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/mmu_rb.c | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/drivers/infiniband/hw/hfi1/mmu_rb.c b/drivers/infiniband/hw/hfi1/mmu_rb.c index 9289bfaa4911..525d58afb354 100644 --- a/drivers/infiniband/hw/hfi1/mmu_rb.c +++ b/drivers/infiniband/hw/hfi1/mmu_rb.c @@ -99,9 +99,6 @@ int hfi1_mmu_rb_register(struct rb_root *root, struct mmu_rb_ops *ops) { struct mmu_rb_handler *handlr; - if (!ops->invalidate) - return -EINVAL; - handlr = kmalloc(sizeof(*handlr), GFP_KERNEL); if (!handlr) return -ENOMEM; @@ -143,8 +140,7 @@ void hfi1_mmu_rb_unregister(struct rb_root *root) while ((node = rb_first(root))) { rbnode = rb_entry(node, struct mmu_rb_node, node); rb_erase(node, root); - if (handler->ops->remove) - handler->ops->remove(root, rbnode, NULL); + handler->ops->remove(root, rbnode, NULL); } } spin_unlock_irqrestore(&handler->lock, flags); @@ -172,11 +168,9 @@ int hfi1_mmu_rb_insert(struct rb_root *root, struct mmu_rb_node *mnode) } __mmu_int_rb_insert(mnode, root); - if (handler->ops->insert) { - ret = handler->ops->insert(root, mnode); - if (ret) - __mmu_int_rb_remove(mnode, root); - } + ret = handler->ops->insert(root, mnode); + if (ret) + __mmu_int_rb_remove(mnode, root); unlock: spin_unlock_irqrestore(&handler->lock, flags); return ret; @@ -219,8 +213,7 @@ static void __mmu_rb_remove(struct mmu_rb_handler *handler, __mmu_int_rb_remove(node, handler->root); spin_unlock_irqrestore(&handler->lock, flags); - if (handler->ops->remove) - handler->ops->remove(handler->root, node, mm); + handler->ops->remove(handler->root, node, mm); } struct mmu_rb_node *hfi1_mmu_rb_extract(struct rb_root *root, @@ -300,8 +293,7 @@ static void mmu_notifier_mem_invalidate(struct mmu_notifier *mn, node->addr, node->len); if (handler->ops->invalidate(root, node)) { __mmu_int_rb_remove(node, root); - if (handler->ops->remove) - handler->ops->remove(root, node, mm); + handler->ops->remove(root, node, mm); } } spin_unlock_irqrestore(&handler->lock, flags); |