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igc: fix missing update of skb->tail in igc_xmit_frame()

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igc_xmit_frame() misses updating skb->tail when the packet size is
shorter than the minimum one.
Use skb_put_padto() in alignment with other Intel Ethernet drivers.

Fixes: 0507ef8a03 ("igc: Add transmit and receive fastpath and interrupt handlers")
Signed-off-by: Kohei Enju <kohei@enjuk.jp>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Avigail Dahan <avigailx.dahan@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Kohei Enju 2026-02-14 19:46:32 +00:00 committed by Tony Nguyen
parent 069c8f5aeb
commit 0ffba24665
1 changed files with 2 additions and 5 deletions
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7
drivers/net/ethernet/intel/igc/igc_main.c
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@ -1730,11 +1730,8 @@ static netdev_tx_t igc_xmit_frame(struct sk_buff *skb,
/* The minimum packet size with TCTL.PSP set is 17 so pad the skb
* in order to meet this minimum size requirement.
*/
if (skb->len < 17) {
if (skb_padto(skb, 17))
return NETDEV_TX_OK;
skb->len = 17;
}
if (skb_put_padto(skb, 17))
return NETDEV_TX_OK;
return igc_xmit_frame_ring(skb, igc_tx_queue_mapping(adapter, skb));
}