Re: [PATCH net] net: sparx5: fix handling uneven length packets in manual extraction
From: Steen Hegelund <steen.hegelund@microchip.com>
Date: 2022-08-26 09:28:16
Hi Casper, Good Catch. On Thu, 2022-08-25 at 10:49 +0200, Casper Andersson wrote:
quoted hunk ↗ jump to hunk
EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe Packets that are not of length divisible by 4 (e.g. 77, 78, 79) would have the checksum included up to next multiple of 4 (a 77 bytes packet would have 3 bytes of ethernet checksum included). The check for the value expects it in host (Little) endian. Fixes: f3cad2611a77 ("net: sparx5: add hostmode with phylink support") Signed-off-by: Casper Andersson <redacted> --- drivers/net/ethernet/microchip/sparx5/sparx5_packet.c | 2 ++ 1 file changed, 2 insertions(+)diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_packet.cb/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c index 304f84aadc36..21844beba72d 100644--- a/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c@@ -113,6 +113,8 @@ static void sparx5_xtr_grp(struct sparx5 *sparx5, u8 grp, bool byte_swap)/* This assumes STATUS_WORD_POS == 1, Status * just after last data */ + if (!byte_swap) + val = ntohl((__force __be32)val); byte_cnt -= (4 - XTR_VALID_BYTES(val)); eof_flag = true; break; -- 2.34.1
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com> -- Best Regards Steen -=-=-=-=-=-=-=-=-=-=-=-=-=-= steen.hegelund@microchip.com