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authorCasper Andersson <casper.casan@gmail.com>2022-08-25 11:49:55 +0300
committerJakub Kicinski <kuba@kernel.org>2022-08-27 03:25:28 +0300
commit7498a457ecf7ff2c4d379360aa8f24566bb1543e (patch)
tree87ce3e2484df99fb3e1f6705aef94423d5e61135 /drivers/net/ethernet/microchip
parent037c97b2886e1b0bcdd14f96bb595f843faa07da (diff)
downloadlinux-7498a457ecf7ff2c4d379360aa8f24566bb1543e.tar.xz
net: sparx5: fix handling uneven length packets in manual extraction
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 <casper.casan@gmail.com> Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com> Link: https://lore.kernel.org/r/20220825084955.684637-1-casper.casan@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/microchip')
-rw-r--r--drivers/net/ethernet/microchip/sparx5/sparx5_packet.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c b/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;