From 6d17e9d660bd76dc631dc09d31883a680de07125 Mon Sep 17 00:00:00 2001 From: Larysa Zaremba Date: Thu, 5 Mar 2026 12:12:49 +0100 Subject: net: enetc: use truesize as XDP RxQ info frag_size [ Upstream commit f8e18abf183dbd636a8725532c7f5aa58957de84 ] The only user of frag_size field in XDP RxQ info is bpf_xdp_frags_increase_tail(). It clearly expects truesize instead of DMA write size. Different assumptions in enetc driver configuration lead to negative tailroom. Set frag_size to the same value as frame_sz. Fixes: 2768b2e2f7d2 ("net: enetc: register XDP RX queues with frag_size") Reviewed-by: Aleksandr Loktionov Reviewed-by: Vladimir Oltean Signed-off-by: Larysa Zaremba Link: https://patch.msgid.link/20260305111253.2317394-9-larysa.zaremba@intel.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/freescale/enetc/enetc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c index e380a4f39855..9fdd448e602f 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.c +++ b/drivers/net/ethernet/freescale/enetc/enetc.c @@ -3468,7 +3468,7 @@ static int enetc_int_vector_init(struct enetc_ndev_priv *priv, int i, priv->rx_ring[i] = bdr; err = __xdp_rxq_info_reg(&bdr->xdp.rxq, priv->ndev, i, 0, - ENETC_RXB_DMA_SIZE_XDP); + ENETC_RXB_TRUESIZE); if (err) goto free_vector; -- cgit v1.2.3