From: Pavan Chebbi Date: Fri, 6 Mar 2026 22:58:54 +0000 (-0800) Subject: bnxt_en: Fix RSS table size check when changing ethtool channels X-Git-Tag: v7.0-rc4~37^2~25 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0d9a60a0618d255530ca56072c5f39eb58e1ed4a;p=thirdparty%2Fkernel%2Flinux.git bnxt_en: Fix RSS table size check when changing ethtool channels When changing channels, the current check in bnxt_set_channels() is not checking for non-default RSS contexts when the RSS table size changes. The current check for IFF_RXFH_CONFIGURED is only sufficient for the default RSS context. Expand the check to include the presence of any non-default RSS contexts. Allowing such change will result in incorrect configuration of the context's RSS table when the table size changes. Fixes: b3d0083caf9a ("bnxt_en: Support RSS contexts in ethtool .{get|set}_rxfh()") Reported-by: Björn Töpel Link: https://lore.kernel.org/netdev/20260303181535.2671734-1-bjorn@kernel.org/ Reviewed-by: Andy Gospodarek Signed-off-by: Pavan Chebbi Signed-off-by: Michael Chan Link: https://patch.msgid.link/20260306225854.3575672-1-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski --- diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index ba47e8294fff..28d0ece2e7b1 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -979,8 +979,8 @@ static int bnxt_set_channels(struct net_device *dev, if (bnxt_get_nr_rss_ctxs(bp, req_rx_rings) != bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings) && - netif_is_rxfh_configured(dev)) { - netdev_warn(dev, "RSS table size change required, RSS table entries must be default to proceed\n"); + (netif_is_rxfh_configured(dev) || bp->num_rss_ctx)) { + netdev_warn(dev, "RSS table size change required, RSS table entries must be default (with no additional RSS contexts present) to proceed\n"); return -EINVAL; }