Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next into net-accept-more

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1557 commits)
  net: qede: use extack in qede_parse_actions()
  net: qede: propagate extack through qede_flow_spec_validate()
  net: qede: use faked extack in qede_flow_spec_to_rule()
  net: qede: use extack in qede_parse_flow_attr()
  net: qede: add extack in qede_add_tc_flower_fltr()
  net: qede: use extack in qede_flow_parse_udp_v4()
  net: qede: use extack in qede_flow_parse_udp_v6()
  net: qede: use extack in qede_flow_parse_tcp_v4()
  net: qede: use extack in qede_flow_parse_tcp_v6()
  net: qede: use extack in qede_flow_parse_v4_common()
  net: qede: use extack in qede_flow_parse_v6_common()
  net: qede: use extack in qede_set_v4_tuple_to_profile()
  net: qede: use extack in qede_set_v6_tuple_to_profile()
  net: qede: use extack in qede_flow_parse_ports()
  net: usb: smsc95xx: stop lying about skb->truesize
  net: dsa: microchip: Fix spellig mistake "configur" -> "configure"
  af_unix: Add dead flag to struct scm_fp_list.
  net: ethernet: adi: adin1110: Replace linux/gpio.h by proper one
  octeontx2-pf: Reuse Transmit queue/Send queue index of HTB class
  gve: Use ethtool_sprintf/puts() to fill stats strings
  ...

1 files changed, 46 insertions, 2 deletions

diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c
index bd04f28d5cf4..563e94e0cbd8 100644
--- a/net/ethtool/netlink.c
+++ b/net/ethtool/netlink.c
@@ -4,6 +4,7 @@
 #include <linux/ethtool_netlink.h>
 #include <linux/pm_runtime.h>
 #include "netlink.h"
+#include <linux/phy_link_topology.h>
 
 static struct genl_family ethtool_genl_family;
 
@@ -30,6 +31,24 @@ const struct nla_policy ethnl_header_policy_stats[] = {
 							  ETHTOOL_FLAGS_STATS),
 };
 
+const struct nla_policy ethnl_header_policy_phy[] = {
+	[ETHTOOL_A_HEADER_DEV_INDEX]	= { .type = NLA_U32 },
+	[ETHTOOL_A_HEADER_DEV_NAME]	= { .type = NLA_NUL_STRING,
+					    .len = ALTIFNAMSIZ - 1 },
+	[ETHTOOL_A_HEADER_FLAGS]	= NLA_POLICY_MASK(NLA_U32,
+							  ETHTOOL_FLAGS_BASIC),
+	[ETHTOOL_A_HEADER_PHY_INDEX]		= NLA_POLICY_MIN(NLA_U32, 1),
+};
+
+const struct nla_policy ethnl_header_policy_phy_stats[] = {
+	[ETHTOOL_A_HEADER_DEV_INDEX]	= { .type = NLA_U32 },
+	[ETHTOOL_A_HEADER_DEV_NAME]	= { .type = NLA_NUL_STRING,
+					    .len = ALTIFNAMSIZ - 1 },
+	[ETHTOOL_A_HEADER_FLAGS]	= NLA_POLICY_MASK(NLA_U32,
+							  ETHTOOL_FLAGS_STATS),
+	[ETHTOOL_A_HEADER_PHY_INDEX]		= NLA_POLICY_MIN(NLA_U32, 1),
+};
+
 int ethnl_ops_begin(struct net_device *dev)
 {
 	int ret;
@@ -89,8 +108,9 @@ int ethnl_parse_header_dev_get(struct ethnl_req_info *req_info,
 			       const struct nlattr *header, struct net *net,
 			       struct netlink_ext_ack *extack, bool require_dev)
 {
-	struct nlattr *tb[ARRAY_SIZE(ethnl_header_policy)];
+	struct nlattr *tb[ARRAY_SIZE(ethnl_header_policy_phy)];
 	const struct nlattr *devname_attr;
+	struct phy_device *phydev = NULL;
 	struct net_device *dev = NULL;
 	u32 flags = 0;
 	int ret;
@@ -104,7 +124,7 @@ int ethnl_parse_header_dev_get(struct ethnl_req_info *req_info,
 	/* No validation here, command policy should have a nested policy set
 	 * for the header, therefore validation should have already been done.
 	 */
-	ret = nla_parse_nested(tb, ARRAY_SIZE(ethnl_header_policy) - 1, header,
+	ret = nla_parse_nested(tb, ARRAY_SIZE(ethnl_header_policy_phy) - 1, header,
 			       NULL, extack);
 	if (ret < 0)
 		return ret;
@@ -145,6 +165,30 @@ int ethnl_parse_header_dev_get(struct ethnl_req_info *req_info,
 		return -EINVAL;
 	}
 
+	if (dev) {
+		if (tb[ETHTOOL_A_HEADER_PHY_INDEX]) {
+			struct nlattr *phy_id;
+
+			phy_id = tb[ETHTOOL_A_HEADER_PHY_INDEX];
+			phydev = phy_link_topo_get_phy(dev->link_topo,
+						       nla_get_u32(phy_id));
+			if (!phydev) {
+				NL_SET_BAD_ATTR(extack, phy_id);
+				return -ENODEV;
+			}
+		} else {
+			/* If we need a PHY but no phy index is specified, fallback
+			 * to dev->phydev
+			 */
+			phydev = dev->phydev;
+		}
+	} else if (tb[ETHTOOL_A_HEADER_PHY_INDEX]) {
+		NL_SET_ERR_MSG_ATTR(extack, header,
+				    "can't target a PHY without a netdev");
+		return -EINVAL;
+	}
+
+	req_info->phydev = phydev;
 	req_info->dev = dev;
 	req_info->flags = flags;
 	return 0;