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| author |   Olof Johansson <olof@lixom.net> | 2019-12-05 13:16:58 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2019-12-05 13:18:54 -0800 |
| commit | 942e6f8a8314e5550e254519dfba4ccd5170421d (patch) | |
| tree | 75ec655b440fbc1c454247af38b5596dd8c78de9 /tools/testing/selftests/bpf/progs/tailcall4.c | |
| parent | ARM: pxa: Fix resource properties (diff) | |
| parent | Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc (diff) | |
| download | linux-dev-942e6f8a8314e5550e254519dfba4ccd5170421d.tar.xz linux-dev-942e6f8a8314e5550e254519dfba4ccd5170421d.zip | |
Merge mainline/master into arm/fixes
This brings in the mainline tree right after armsoc contents was merged
this release cycle, so that we can re-run savedefconfig, etc.
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/tailcall4.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/tailcall4.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/tailcall4.c b/tools/testing/selftests/bpf/progs/tailcall4.c new file mode 100644 index 000000000000..499388758119 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/tailcall4.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/bpf.h> + +#include "bpf_helpers.h" + +struct { + __uint(type, BPF_MAP_TYPE_PROG_ARRAY); + __uint(max_entries, 3); + __uint(key_size, sizeof(__u32)); + __uint(value_size, sizeof(__u32)); +} jmp_table SEC(".maps"); + +static volatile int selector; + +#define TAIL_FUNC(x) \ + SEC("classifier/" #x) \ + int bpf_func_##x(struct __sk_buff *skb) \ + { \ + return x; \ + } +TAIL_FUNC(0) +TAIL_FUNC(1) +TAIL_FUNC(2) + +SEC("classifier") +int entry(struct __sk_buff *skb) +{ + bpf_tail_call(skb, &jmp_table, selector); + return 3; +} + +char __license[] SEC("license") = "GPL"; +int _version SEC("version") = 1; |