From: Kohei Enju Date: Mon, 29 Sep 2025 05:42:15 +0000 (+0900) Subject: nfp: fix RSS hash key size when RSS is not supported X-Git-Tag: v6.18-rc1~132^2^2~8 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8425161ac1204d2185e0a10f5ae652bae75d2451;p=thirdparty%2Flinux.git nfp: fix RSS hash key size when RSS is not supported The nfp_net_get_rxfh_key_size() function returns -EOPNOTSUPP when devices don't support RSS, and callers treat the negative value as a large positive value since the return type is u32. Return 0 when devices don't support RSS, aligning with the ethtool interface .get_rxfh_key_size() that requires returning 0 in such cases. Fixes: 9ff304bfaf58 ("nfp: add support for reporting CRC32 hash function") Signed-off-by: Kohei Enju Link: https://patch.msgid.link/20250929054230.68120-1-enjuk@amazon.com Signed-off-by: Jakub Kicinski --- diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c index a36215195923c..16c828dd5c1a3 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c @@ -1788,7 +1788,7 @@ static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev) struct nfp_net *nn = netdev_priv(netdev); if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) - return -EOPNOTSUPP; + return 0; return nfp_net_rss_key_sz(nn); }