diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c | 9 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_xdp_adjust_tail_shrink.c (renamed from tools/testing/selftests/bpf/progs/test_adjust_tail.c) | 12 |
2 files changed, 13 insertions, 8 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c b/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c index 6c8ca1c93f9b..a76dd81dfce9 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c @@ -2,9 +2,9 @@ #include <test_progs.h> #include <network_helpers.h> -void test_xdp_adjust_tail(void) +void test_xdp_adjust_tail_shrink(void) { - const char *file = "./test_adjust_tail.o"; + const char *file = "./test_xdp_adjust_tail_shrink.o"; struct bpf_object *obj; char buf[128]; __u32 duration, retval, size; @@ -28,3 +28,8 @@ void test_xdp_adjust_tail(void) err, errno, retval, size); bpf_object__close(obj); } + +void test_xdp_adjust_tail(void) +{ + test_xdp_adjust_tail_shrink(); +} diff --git a/tools/testing/selftests/bpf/progs/test_adjust_tail.c b/tools/testing/selftests/bpf/progs/test_xdp_adjust_tail_shrink.c index b7fc85769bdc..22065a9cfb25 100644 --- a/tools/testing/selftests/bpf/progs/test_adjust_tail.c +++ b/tools/testing/selftests/bpf/progs/test_xdp_adjust_tail_shrink.c @@ -1,5 +1,5 @@ -/* SPDX-License-Identifier: GPL-2.0 - * Copyright (c) 2018 Facebook +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2018 Facebook * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public @@ -11,15 +11,15 @@ int _version SEC("version") = 1; -SEC("xdp_adjust_tail") -int _xdp_adjust_tail(struct xdp_md *xdp) +SEC("xdp_adjust_tail_shrink") +int _xdp_adjust_tail_shrink(struct xdp_md *xdp) { void *data_end = (void *)(long)xdp->data_end; void *data = (void *)(long)xdp->data; int offset = 0; - if (data_end - data == 54) - offset = 256; + if (data_end - data == 54) /* sizeof(pkt_v4) */ + offset = 256; /* shrink too much */ else offset = 20; if (bpf_xdp_adjust_tail(xdp, 0 - offset)) |