RDMA/core Remove uverbs_ex_cmd_mask

No driver sets it, and the core code sets a maximum mask, simply remove
it.

Disabled operations are now handled either by having a NULL ops pointer,
or by having the common driver callbacks check for unsupported extended
attributes.

Link: https://lore.kernel.org/r/9-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.comSigned-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/core/device.c

@@ -630,21 +630,6 @@ struct ib_device *_ib_alloc_device(size_t size)
 		BIT_ULL(IB_USER_VERBS_CMD_REG_MR) |
 		BIT_ULL(IB_USER_VERBS_CMD_REREG_MR) |
 		BIT_ULL(IB_USER_VERBS_CMD_RESIZE_CQ);
-
-	device->uverbs_ex_cmd_mask =
-		BIT_ULL(IB_USER_VERBS_EX_CMD_CREATE_CQ) |
-		BIT_ULL(IB_USER_VERBS_EX_CMD_CREATE_FLOW) |
-		BIT_ULL(IB_USER_VERBS_EX_CMD_CREATE_QP) |
-		BIT_ULL(IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL) |
-		BIT_ULL(IB_USER_VERBS_EX_CMD_CREATE_WQ) |
-		BIT_ULL(IB_USER_VERBS_EX_CMD_DESTROY_FLOW) |
-		BIT_ULL(IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL) |
-		BIT_ULL(IB_USER_VERBS_EX_CMD_DESTROY_WQ) |
-		BIT_ULL(IB_USER_VERBS_EX_CMD_MODIFY_CQ) |
-		BIT_ULL(IB_USER_VERBS_EX_CMD_MODIFY_QP) |
-		BIT_ULL(IB_USER_VERBS_EX_CMD_MODIFY_WQ) |
-		BIT_ULL(IB_USER_VERBS_EX_CMD_QUERY_DEVICE);
-
 	return device;
 }
 EXPORT_SYMBOL(_ib_alloc_device);

drivers/infiniband/core/uverbs_uapi.c

@@ -79,10 +79,7 @@ static int uapi_create_write(struct uverbs_api *uapi,
 
 	method_elm->is_ex = def->write.is_ex;
 	method_elm->handler = def->func_write;
-	if (def->write.is_ex)
-		method_elm->disabled = !(ibdev->uverbs_ex_cmd_mask &
-					 BIT_ULL(def->write.command_num));
-	else
+	if (!def->write.is_ex)
 		method_elm->disabled = !(ibdev->uverbs_cmd_mask &
 					 BIT_ULL(def->write.command_num));
 

include/rdma/ib_verbs.h

@@ -2667,7 +2667,6 @@ struct ib_device {
 	const struct attribute_group	*groups[3];
 
 	u64			     uverbs_cmd_mask;
-	u64			     uverbs_ex_cmd_mask;
 
 	char			     node_desc[IB_DEVICE_NODE_DESC_MAX];
 	__be64			     node_guid;