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author | Stanislav Fomichev <sdf@google.com> | 2018-12-11 19:20:52 -0800 |
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committer | Alexei Starovoitov <ast@kernel.org> | 2018-12-12 15:33:07 -0800 |
commit | a0517a0f7ef23550b4484c37e2b9c2d32abebf64 (patch) | |
tree | 9d95b1beafb6d6a7de8c310cfe23892385c358e9 /tools | |
parent | 37ab566c178d79807b2d20b4c999133780355c6c (diff) | |
download | linux-stable-a0517a0f7ef23550b4484c37e2b9c2d32abebf64.tar.gz linux-stable-a0517a0f7ef23550b4484c37e2b9c2d32abebf64.tar.bz2 linux-stable-a0517a0f7ef23550b4484c37e2b9c2d32abebf64.zip |
selftests/bpf: use __bpf_constant_htons in test_prog.c
For some reason, my older GCC (< 4.8) isn't smart enough to optimize the
!__builtin_constant_p() branch in bpf_htons, I see:
error: implicit declaration of function '__builtin_bswap16'
Let's use __bpf_constant_htons as suggested by Daniel Borkmann.
I tried to use simple htons, but it produces the following:
test_progs.c:54:17: error: braced-group within expression allowed only
inside a function
.eth.h_proto = htons(ETH_P_IP),
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r-- | tools/testing/selftests/bpf/test_progs.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c index 26f1fdf3e2bf..126fc624290d 100644 --- a/tools/testing/selftests/bpf/test_progs.c +++ b/tools/testing/selftests/bpf/test_progs.c @@ -51,10 +51,10 @@ static struct { struct iphdr iph; struct tcphdr tcp; } __packed pkt_v4 = { - .eth.h_proto = bpf_htons(ETH_P_IP), + .eth.h_proto = __bpf_constant_htons(ETH_P_IP), .iph.ihl = 5, .iph.protocol = 6, - .iph.tot_len = bpf_htons(MAGIC_BYTES), + .iph.tot_len = __bpf_constant_htons(MAGIC_BYTES), .tcp.urg_ptr = 123, }; @@ -64,9 +64,9 @@ static struct { struct ipv6hdr iph; struct tcphdr tcp; } __packed pkt_v6 = { - .eth.h_proto = bpf_htons(ETH_P_IPV6), + .eth.h_proto = __bpf_constant_htons(ETH_P_IPV6), .iph.nexthdr = 6, - .iph.payload_len = bpf_htons(MAGIC_BYTES), + .iph.payload_len = __bpf_constant_htons(MAGIC_BYTES), .tcp.urg_ptr = 123, }; |