This is a note to let you know that I've just added the patch titled selftests/bpf: add missing header include for htons to the 6.1-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-bpf-add-missing-header-include-for-htons.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit f0758ed8a9ee5fe00e1e53910fb34e02444fb591 Author: Alexis Lothoré (eBPF Foundation) <alexis.lothore@xxxxxxxxxxx> Date: Tue Oct 8 16:50:57 2024 +0200 selftests/bpf: add missing header include for htons [ Upstream commit bc9b3fb827fceec4e05564d6e668280f4470ab5b ] Including the network_helpers.h header in tests can lead to the following build error: ./network_helpers.h: In function ‘csum_tcpudp_magic’: ./network_helpers.h:116:14: error: implicit declaration of function \ ‘htons’ [-Werror=implicit-function-declaration] 116 | s += htons(proto + len); The error is avoided in many cases thanks to some other headers included earlier and bringing in arpa/inet.h (ie: test_progs.h). Make sure that test_progs build success does not depend on header ordering by adding the missing header include in network_helpers.h Fixes: f6642de0c3e9 ("selftests/bpf: Add csum helpers") Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@xxxxxxxxxxx> Link: https://lore.kernel.org/r/20241008-network_helpers_fix-v1-1-2c2ae03df7ef@xxxxxxxxxxx Signed-off-by: Martin KaFai Lau <martin.lau@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h index 2582ec56dcc50..535b72623dd4b 100644 --- a/tools/testing/selftests/bpf/network_helpers.h +++ b/tools/testing/selftests/bpf/network_helpers.h @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ #ifndef __NETWORK_HELPERS_H #define __NETWORK_HELPERS_H +#include <arpa/inet.h> #include <sys/socket.h> #include <sys/types.h> #include <linux/types.h>