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selftests/bpf: Declare bpf_log_buf variables as static

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The cgroup selftests did not declare the bpf_log_buf variable as static, leading
to a linker error with GCC 10 (which defaults to -fno-common). Fix this by
adding the missing static declarations.

Fixes: 257c88559f ("selftests/bpf: Convert test_cgroup_attach to prog_tests")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrey Ignatov <rdna@fb.com>
Link: https://lore.kernel.org/bpf/20200302145348.559177-1-toke@redhat.com
This commit is contained in:
Toke Høiland-Jørgensen 2020-03-02 15:53:48 +01:00 committed by Alexei Starovoitov
parent 441420a1f0
commit 775a2be52d
3 changed files with 3 additions and 3 deletions
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2
tools/testing/selftests/bpf/prog_tests/cgroup_attach_autodetach.c
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@ -6,7 +6,7 @@
#define PING_CMD "ping -q -c1 -w1 127.0.0.1 > /dev/null"
char bpf_log_buf[BPF_LOG_BUF_SIZE];
static char bpf_log_buf[BPF_LOG_BUF_SIZE];
static int prog_load(void)
{

2
tools/testing/selftests/bpf/prog_tests/cgroup_attach_multi.c
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@ -6,7 +6,7 @@
#define PING_CMD "ping -q -c1 -w1 127.0.0.1 > /dev/null"
char bpf_log_buf[BPF_LOG_BUF_SIZE];
static char bpf_log_buf[BPF_LOG_BUF_SIZE];
static int map_fd = -1;

2
tools/testing/selftests/bpf/prog_tests/cgroup_attach_override.c
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@ -8,7 +8,7 @@
#define BAR "/foo/bar/"
#define PING_CMD "ping -q -c1 -w1 127.0.0.1 > /dev/null"
char bpf_log_buf[BPF_LOG_BUF_SIZE];
static char bpf_log_buf[BPF_LOG_BUF_SIZE];
static int prog_load(int verdict)
{