devlink: pass flags as an arg of dump_one() callback

In order to easily set NLM_F_DUMP_FILTERED for partial dumps, pass the
flags as an arg of dump_one() callback. Currently, it is always
NLM_F_MULTI.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-7-jiri@resnulli.usSigned-off-by: Jakub Kicinski <kuba@kernel.org>

net/devlink/dev.c

@@ -218,11 +218,11 @@ int devlink_nl_get_doit(struct sk_buff *skb, struct genl_info *info)
 
 static int
 devlink_nl_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
-			struct netlink_callback *cb)
+			struct netlink_callback *cb, int flags)
 {
 	return devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW,
 			       NETLINK_CB(cb->skb).portid,
-			       cb->nlh->nlmsg_seq, NLM_F_MULTI);
+			       cb->nlh->nlmsg_seq, flags);
 }
 
 int devlink_nl_get_dumpit(struct sk_buff *msg, struct netlink_callback *cb)
@@ -828,13 +828,13 @@ int devlink_nl_info_get_doit(struct sk_buff *skb, struct genl_info *info)
 
 static int
 devlink_nl_info_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
-			     struct netlink_callback *cb)
+			     struct netlink_callback *cb, int flags)
 {
 	int err;
 
 	err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET,
 				   NETLINK_CB(cb->skb).portid,
-				   cb->nlh->nlmsg_seq, NLM_F_MULTI,
+				   cb->nlh->nlmsg_seq, flags,
 				   cb->extack);
 	if (err == -EOPNOTSUPP)
 		err = 0;
@@ -1231,14 +1231,15 @@ int devlink_nl_selftests_get_doit(struct sk_buff *skb, struct genl_info *info)
 
 static int devlink_nl_selftests_get_dump_one(struct sk_buff *msg,
 					     struct devlink *devlink,
-					     struct netlink_callback *cb)
+					     struct netlink_callback *cb,
+					     int flags)
 {
 	if (!devlink->ops->selftest_check)
 		return 0;
 
 	return devlink_nl_selftests_fill(msg, devlink,
 					 NETLINK_CB(cb->skb).portid,
-					 cb->nlh->nlmsg_seq, NLM_F_MULTI,
+					 cb->nlh->nlmsg_seq, flags,
 					 cb->extack);
 }
 

net/devlink/devl_internal.h

@@ -115,7 +115,8 @@ struct devlink_nl_dump_state {
 
 typedef int devlink_nl_dump_one_func_t(struct sk_buff *msg,
 				       struct devlink *devlink,
-				       struct netlink_callback *cb);
+				       struct netlink_callback *cb,
+				       int flags);
 
 extern const struct genl_small_ops devlink_nl_small_ops[54];
 

net/devlink/health.c

@@ -386,7 +386,8 @@ int devlink_nl_health_reporter_get_doit(struct sk_buff *skb,
 
 static int devlink_nl_health_reporter_get_dump_one(struct sk_buff *msg,
 						   struct devlink *devlink,
-						   struct netlink_callback *cb)
+						   struct netlink_callback *cb,
+						   int flags)
 {
 	struct devlink_nl_dump_state *state = devlink_dump_state(cb);
 	struct devlink_health_reporter *reporter;
@@ -404,7 +405,7 @@ static int devlink_nl_health_reporter_get_dump_one(struct sk_buff *msg,
 						      DEVLINK_CMD_HEALTH_REPORTER_GET,
 						      NETLINK_CB(cb->skb).portid,
 						      cb->nlh->nlmsg_seq,
-						      NLM_F_MULTI);
+						      flags);
 		if (err) {
 			state->idx = idx;
 			return err;
@@ -421,7 +422,7 @@ static int devlink_nl_health_reporter_get_dump_one(struct sk_buff *msg,
 							      DEVLINK_CMD_HEALTH_REPORTER_GET,
 							      NETLINK_CB(cb->skb).portid,
 							      cb->nlh->nlmsg_seq,
-							      NLM_F_MULTI);
+							      flags);
 			if (err) {
 				state->idx = idx;
 				return err;

net/devlink/netlink.c

@@ -182,7 +182,7 @@ int devlink_nl_dumpit(struct sk_buff *msg, struct netlink_callback *cb,
 		devl_lock(devlink);
 
 		if (devl_is_registered(devlink))
-			err = dump_one(msg, devlink, cb);
+			err = dump_one(msg, devlink, cb, NLM_F_MULTI);
 		else
 			err = 0;