[PATCH 4.14 483/496] selftests/net: fixes psock_fanout eBPF test case

From: Greg Kroah-Hartman
Date: Mon May 28 2018 - 07:03:30 EST


4.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Prashant Bhole <bhole_prashant_q7@xxxxxxxxxxxxx>

[ Upstream commit ddd0010392d9cbcb95b53d11b7cafc67b373ab56 ]

eBPF test fails due to verifier failure because log_buf is too small.
Fixed by increasing log_buf size

Signed-off-by: Prashant Bhole <bhole_prashant_q7@xxxxxxxxxxxxx>
Acked-by: Willem de Bruijn <willemb@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/net/psock_fanout.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/tools/testing/selftests/net/psock_fanout.c
+++ b/tools/testing/selftests/net/psock_fanout.c
@@ -128,6 +128,8 @@ static void sock_fanout_getopts(int fd,

static void sock_fanout_set_ebpf(int fd)
{
+ static char log_buf[65536];
+
const int len_off = __builtin_offsetof(struct __sk_buff, len);
struct bpf_insn prog[] = {
{ BPF_ALU64 | BPF_MOV | BPF_X, 6, 1, 0, 0 },
@@ -140,7 +142,6 @@ static void sock_fanout_set_ebpf(int fd)
{ BPF_ALU | BPF_MOV | BPF_K, 0, 0, 0, 0 },
{ BPF_JMP | BPF_EXIT, 0, 0, 0, 0 }
};
- char log_buf[512];
union bpf_attr attr;
int pfd;