net: rtnetlink: Propagate extack to rtnl_offload_xstats_fill()

Later patches add handlers for more HW-backed statistics. An extack will be
useful when communicating HW / driver errors to the client. Add the
arguments as appropriate.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 31aa260..594aba3 100644 (file)
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -5092,7 +5092,8 @@ rtnl_offload_xstats_fill_ndo(struct net_device *dev, int attr_id,
 }
 
 static int rtnl_offload_xstats_fill(struct sk_buff *skb, struct net_device *dev,
-                                   int *prividx, u32 off_filter_mask)
+                                   int *prividx, u32 off_filter_mask,
+                                   struct netlink_ext_ack *extack)
 {
        int attr_id_cpu_hit = IFLA_OFFLOAD_XSTATS_CPU_HIT;
        bool have_data = false;
@@ -5147,7 +5148,8 @@ static int rtnl_fill_statsinfo(struct sk_buff *skb, struct net_device *dev,
                               int type, u32 pid, u32 seq, u32 change,
                               unsigned int flags,
                               const struct rtnl_stats_dump_filters *filters,
-                              int *idxattr, int *prividx)
+                              int *idxattr, int *prividx,
+                              struct netlink_ext_ack *extack)
 {
        unsigned int filter_mask = filters->mask[0];
        struct if_stats_msg *ifsm;
@@ -5235,7 +5237,7 @@ static int rtnl_fill_statsinfo(struct sk_buff *skb, struct net_device *dev,
                        goto nla_put_failure;
 
                err = rtnl_offload_xstats_fill(skb, dev, prividx,
-                                              off_filter_mask);
+                                              off_filter_mask, extack);
                if (err == -ENODATA)
                        nla_nest_cancel(skb, attr);
                else
@@ -5506,7 +5508,7 @@ static int rtnl_stats_get(struct sk_buff *skb, struct nlmsghdr *nlh,
 
        err = rtnl_fill_statsinfo(nskb, dev, RTM_NEWSTATS,
                                  NETLINK_CB(skb).portid, nlh->nlmsg_seq, 0,
-                                 0, &filters, &idxattr, &prividx);
+                                 0, &filters, &idxattr, &prividx, extack);
        if (err < 0) {
                /* -EMSGSIZE implies BUG in if_nlmsg_stats_size */
                WARN_ON(err == -EMSGSIZE);
@@ -5562,7 +5564,8 @@ static int rtnl_stats_dump(struct sk_buff *skb, struct netlink_callback *cb)
                                                  NETLINK_CB(cb->skb).portid,
                                                  cb->nlh->nlmsg_seq, 0,
                                                  flags, &filters,
-                                                 &s_idxattr, &s_prividx);
+                                                 &s_idxattr, &s_prividx,
+                                                 extack);
                        /* If we ran out of room on the first message,
                         * we're in trouble
                         */