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bnxt_en: Only restore LRO if the device supports TPA

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With a P5+ device with firmware that reports max_aggs_supported == 0, it is
possible to make LRO settable by attaching and detaching an XDP program
even though the device does not support TPA.

Fix this by testing BNXT_SUPPORTS_TPA before restoring the feature bit.

Fixes: f0aa6a37a3 ("eth: bnxt: always recalculate features after XDP clearing, fix null-deref")
Reported-by: Sashiko <sashiko-bot+sashiko@kernel.org>
Link: https://netdev-ai.bots.linux.dev/sashiko/#/patchset/20260828190900.1767611-1-joe%40dama.to
Cc: stable@vger.kernel.org
Signed-off-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260902015652.2421609-2-joe@dama.to
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Joe Damato 2026-09-01 18:56:44 -07:00 committed by Paolo Abeni
parent 8d6cd18850
commit 4e17b5007b
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -5026,7 +5026,8 @@ void bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode)
bnxt_get_max_rings(bp, &rx, &tx, true);
if (rx > 1) {
bp->flags &= ~BNXT_FLAG_NO_AGG_RINGS;
bp->dev->hw_features |= NETIF_F_LRO;
if (BNXT_SUPPORTS_TPA(bp))
bp->dev->hw_features |= NETIF_F_LRO;
}
}