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authorBreno Leitao <leitao@debian.org>2025-09-17 02:58:14 -0700
committerJakub Kicinski <kuba@kernel.org>2025-09-18 07:07:38 -0700
commit8b7c4b612decb79b157611225faee68c384102a9 (patch)
treeeedc856d783ef997b31c667027b434f758626063
parentnet: ethtool: update set_rxfh_indir to use ethtool_get_rx_ring_count helper (diff)
downloadlinux-8b7c4b612decb79b157611225faee68c384102a9.tar.gz
linux-8b7c4b612decb79b157611225faee68c384102a9.zip
net: ethtool: use the new helper in rss_set_prep_indir()
Refactor rss_set_prep_indir() to utilize the new ethtool_get_rx_ring_count() helper for determining the number of RX rings, replacing the direct use of get_rxnfc with ETHTOOL_GRXRINGS. This ensures compatibility with both legacy and new ethtool_ops interfaces by transparently multiplexing between them. Signed-off-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20250917-gxrings-v4-7-dae520e2e1cb@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--net/ethtool/rss.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/net/ethtool/rss.c b/net/ethtool/rss.c
index 202d95e8bf3e..4dced53be4b3 100644
--- a/net/ethtool/rss.c
+++ b/net/ethtool/rss.c
@@ -620,23 +620,22 @@ rss_set_prep_indir(struct net_device *dev, struct genl_info *info,
struct rss_reply_data *data, struct ethtool_rxfh_param *rxfh,
bool *reset, bool *mod)
{
- const struct ethtool_ops *ops = dev->ethtool_ops;
struct netlink_ext_ack *extack = info->extack;
struct nlattr **tb = info->attrs;
- struct ethtool_rxnfc rx_rings;
size_t alloc_size;
+ int num_rx_rings;
u32 user_size;
int i, err;
if (!tb[ETHTOOL_A_RSS_INDIR])
return 0;
- if (!data->indir_size || !ops->get_rxnfc)
+ if (!data->indir_size)
return -EOPNOTSUPP;
- rx_rings.cmd = ETHTOOL_GRXRINGS;
- err = ops->get_rxnfc(dev, &rx_rings, NULL);
- if (err)
+ err = ethtool_get_rx_ring_count(dev);
+ if (err < 0)
return err;
+ num_rx_rings = err;
if (nla_len(tb[ETHTOOL_A_RSS_INDIR]) % 4) {
NL_SET_BAD_ATTR(info->extack, tb[ETHTOOL_A_RSS_INDIR]);
@@ -665,7 +664,7 @@ rss_set_prep_indir(struct net_device *dev, struct genl_info *info,
nla_memcpy(rxfh->indir, tb[ETHTOOL_A_RSS_INDIR], alloc_size);
for (i = 0; i < user_size; i++) {
- if (rxfh->indir[i] < rx_rings.data)
+ if (rxfh->indir[i] < num_rx_rings)
continue;
NL_SET_ERR_MSG_ATTR_FMT(extack, tb[ETHTOOL_A_RSS_INDIR],
@@ -682,7 +681,7 @@ rss_set_prep_indir(struct net_device *dev, struct genl_info *info,
} else {
for (i = 0; i < data->indir_size; i++)
rxfh->indir[i] =
- ethtool_rxfh_indir_default(i, rx_rings.data);
+ ethtool_rxfh_indir_default(i, num_rx_rings);
}
*mod |= memcmp(rxfh->indir, data->indir_table, data->indir_size);