This is a note to let you know that I've just added the patch titled selftests/xsk: print correct payload for packet dump to the 6.2-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: selftests-xsk-print-correct-payload-for-packet-dump.patch and it can be found in the queue-6.2 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit fd4d5f84629c0571e4fad1942528912601602d8b Author: Magnus Karlsson <magnus.karlsson@xxxxxxxxx> Date: Wed Jan 11 10:35:12 2023 +0100 selftests/xsk: print correct payload for packet dump [ Upstream commit 2d0b2ae2871ae6d42a9f0a4280e0fb5bff8d38b8 ] Print the correct payload when the packet dump option is selected. The network to host conversion was forgotten and the payload was erronously declared to be an int instead of an unsigned int. Fixes: facb7cb2e909 ("selftests/bpf: Xsk selftests - SKB POLL, NOPOLL") Signed-off-by: Magnus Karlsson <magnus.karlsson@xxxxxxxxx> Acked-by: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx> Link: https://lore.kernel.org/r/20230111093526.11682-2-magnus.karlsson@xxxxxxxxx Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index 162d3a516f2ca..2ff43b22180fa 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -767,7 +767,7 @@ static void pkt_dump(void *pkt, u32 len) struct ethhdr *ethhdr; struct udphdr *udphdr; struct iphdr *iphdr; - int payload, i; + u32 payload, i; ethhdr = pkt; iphdr = pkt + sizeof(*ethhdr); @@ -792,7 +792,7 @@ static void pkt_dump(void *pkt, u32 len) fprintf(stdout, "DEBUG>> L4: udp_hdr->src: %d\n", ntohs(udphdr->source)); fprintf(stdout, "DEBUG>> L4: udp_hdr->dst: %d\n", ntohs(udphdr->dest)); /*extract L5 frame */ - payload = *((uint32_t *)(pkt + PKT_HDR_SIZE)); + payload = ntohl(*((u32 *)(pkt + PKT_HDR_SIZE))); fprintf(stdout, "DEBUG>> L5: payload: %d\n", payload); fprintf(stdout, "---------------------------------------\n");