6.12-stable review patch. If anyone has any objections, please let me know.
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From: Alexis Lothoré (eBPF Foundation) alexis.lothore@bootlin.com
commit ac8d16b2d3772934f4cba44cb01bad05b4b2864c upstream.
xdp_redir_prog currently redirects packets based on the entry at index 1 in cpu_map, but the corresponding test only manipulates the entry at index 0. This does not really affect the test in its current form since the program is detached before having the opportunity to execute, but it needs to be fixed before being able improve the corresponding test (ie, not only test attach/detach but also the redirect feature)
Fix this XDP program by making it redirect packets based on entry 0 in cpu_map instead of entry 1.
Signed-off-by: Alexis Lothoré (eBPF Foundation) alexis.lothore@bootlin.com Link: https://lore.kernel.org/r/20241009-convert_xdp_tests-v3-1-51cea913710c@bootl... Signed-off-by: Martin KaFai Lau martin.lau@kernel.org Signed-off-by: Shung-Hsi Yu shung-hsi.yu@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c +++ b/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c @@ -15,7 +15,7 @@ struct { SEC("xdp") int xdp_redir_prog(struct xdp_md *ctx) { - return bpf_redirect_map(&cpu_map, 1, 0); + return bpf_redirect_map(&cpu_map, 0, 0); }
SEC("xdp")