From: Jason Gunthorpe <jgg@nvidia.com>
Date: Tue, 26 May 2026 01:22:42 +0000 (-0300)
Subject: RDMA/core: Move flow related functions to ib_uverbs_support.ko
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9733e9f580fdda2e8c1cd349caddd93f026ab6f5;p=thirdparty%2Fkernel%2Flinux.git

RDMA/core: Move flow related functions to ib_uverbs_support.ko

mlx5 uses these as part of the driver implementation, move them to the
support module instead.

Link: https://patch.msgid.link/r/6-v3-43aba1969751+1988-ib_uverbs_support_ko_jgg@nvidia.com
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---

diff --git a/drivers/infiniband/core/Makefile b/drivers/infiniband/core/Makefile
index 47f645cb76f69..ab7a2197bc863 100644
--- a/drivers/infiniband/core/Makefile
+++ b/drivers/infiniband/core/Makefile
@@ -49,4 +49,5 @@ ib_uverbs-y :=			uverbs_main.o uverbs_cmd.o uverbs_marshall.o \
 				uverbs_std_types_qp.o
 
 ib_uverbs_support-y :=		rdma_core.o \
-				ucaps.o
+				ucaps.o \
+				uverbs_flow.o
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 91a62d2ade4dd..32914007bae66 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2594,82 +2594,6 @@ out_put:
 	return ret;
 }
 
-struct ib_uflow_resources *flow_resources_alloc(size_t num_specs)
-{
-	struct ib_uflow_resources *resources;
-
-	resources = kzalloc_obj(*resources);
-
-	if (!resources)
-		return NULL;
-
-	if (!num_specs)
-		goto out;
-
-	resources->counters =
-		kzalloc_objs(*resources->counters, num_specs);
-	resources->collection =
-		kzalloc_objs(*resources->collection, num_specs);
-
-	if (!resources->counters || !resources->collection)
-		goto err;
-
-out:
-	resources->max = num_specs;
-	return resources;
-
-err:
-	kfree(resources->counters);
-	kfree(resources);
-
-	return NULL;
-}
-EXPORT_SYMBOL(flow_resources_alloc);
-
-void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res)
-{
-	unsigned int i;
-
-	if (!uflow_res)
-		return;
-
-	for (i = 0; i < uflow_res->collection_num; i++)
-		atomic_dec(&uflow_res->collection[i]->usecnt);
-
-	for (i = 0; i < uflow_res->counters_num; i++)
-		atomic_dec(&uflow_res->counters[i]->usecnt);
-
-	kfree(uflow_res->collection);
-	kfree(uflow_res->counters);
-	kfree(uflow_res);
-}
-EXPORT_SYMBOL(ib_uverbs_flow_resources_free);
-
-void flow_resources_add(struct ib_uflow_resources *uflow_res,
-			enum ib_flow_spec_type type,
-			void *ibobj)
-{
-	WARN_ON(uflow_res->num >= uflow_res->max);
-
-	switch (type) {
-	case IB_FLOW_SPEC_ACTION_HANDLE:
-		atomic_inc(&((struct ib_flow_action *)ibobj)->usecnt);
-		uflow_res->collection[uflow_res->collection_num++] =
-			(struct ib_flow_action *)ibobj;
-		break;
-	case IB_FLOW_SPEC_ACTION_COUNT:
-		atomic_inc(&((struct ib_counters *)ibobj)->usecnt);
-		uflow_res->counters[uflow_res->counters_num++] =
-			(struct ib_counters *)ibobj;
-		break;
-	default:
-		WARN_ON(1);
-	}
-
-	uflow_res->num++;
-}
-EXPORT_SYMBOL(flow_resources_add);
-
 static int kern_spec_to_ib_spec_action(struct uverbs_attr_bundle *attrs,
 				       struct ib_uverbs_flow_spec *kern_spec,
 				       union ib_flow_spec *ib_spec,
diff --git a/drivers/infiniband/core/uverbs_flow.c b/drivers/infiniband/core/uverbs_flow.c
new file mode 100644
index 0000000000000..1528a294f7f85
--- /dev/null
+++ b/drivers/infiniband/core/uverbs_flow.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+#include "uverbs.h"
+
+struct ib_uflow_resources *flow_resources_alloc(size_t num_specs)
+{
+	struct ib_uflow_resources *resources;
+
+	resources = kzalloc_obj(*resources);
+
+	if (!resources)
+		return NULL;
+
+	if (!num_specs)
+		goto out;
+
+	resources->counters =
+		kzalloc_objs(*resources->counters, num_specs);
+	resources->collection =
+		kzalloc_objs(*resources->collection, num_specs);
+
+	if (!resources->counters || !resources->collection)
+		goto err;
+
+out:
+	resources->max = num_specs;
+	return resources;
+
+err:
+	kfree(resources->counters);
+	kfree(resources);
+
+	return NULL;
+}
+EXPORT_SYMBOL(flow_resources_alloc);
+
+void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res)
+{
+	unsigned int i;
+
+	if (!uflow_res)
+		return;
+
+	for (i = 0; i < uflow_res->collection_num; i++)
+		atomic_dec(&uflow_res->collection[i]->usecnt);
+
+	for (i = 0; i < uflow_res->counters_num; i++)
+		atomic_dec(&uflow_res->counters[i]->usecnt);
+
+	kfree(uflow_res->collection);
+	kfree(uflow_res->counters);
+	kfree(uflow_res);
+}
+EXPORT_SYMBOL(ib_uverbs_flow_resources_free);
+
+void flow_resources_add(struct ib_uflow_resources *uflow_res,
+			enum ib_flow_spec_type type,
+			void *ibobj)
+{
+	WARN_ON(uflow_res->num >= uflow_res->max);
+
+	switch (type) {
+	case IB_FLOW_SPEC_ACTION_HANDLE:
+		atomic_inc(&((struct ib_flow_action *)ibobj)->usecnt);
+		uflow_res->collection[uflow_res->collection_num++] =
+			(struct ib_flow_action *)ibobj;
+		break;
+	case IB_FLOW_SPEC_ACTION_COUNT:
+		atomic_inc(&((struct ib_counters *)ibobj)->usecnt);
+		uflow_res->counters[uflow_res->counters_num++] =
+			(struct ib_counters *)ibobj;
+		break;
+	default:
+		WARN_ON(1);
+	}
+
+	uflow_res->num++;
+}
+EXPORT_SYMBOL(flow_resources_add);