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selftests/bpf: fix constness of source arg for bpf helpers 

Fix signature of bpf_probe_read and bpf_probe_write_user to mark source
pointer as const. This causes warnings during compilation for
applications relying on those helpers.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Andrii Nakryiko 2019-06-10 10:46:55 -07:00 committed by Alexei Starovoitov
parent 0ed3cc4abc
commit c7cebffea2
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/bpf/bpf_helpers.h
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@ -31,7 +31,7 @@ static int (*bpf_map_pop_elem)(void *map, void *value) =
(void *) BPF_FUNC_map_pop_elem;
static int (*bpf_map_peek_elem)(void *map, void *value) =
(void *) BPF_FUNC_map_peek_elem;
static int (*bpf_probe_read)(void *dst, int size, void *unsafe_ptr) =
static int (*bpf_probe_read)(void *dst, int size, const void *unsafe_ptr) =
(void *) BPF_FUNC_probe_read;
static unsigned long long (*bpf_ktime_get_ns)(void) =
(void *) BPF_FUNC_ktime_get_ns;
@ -62,7 +62,7 @@ static int (*bpf_perf_event_output)(void *ctx, void *map,
(void *) BPF_FUNC_perf_event_output;
static int (*bpf_get_stackid)(void *ctx, void *map, int flags) =
(void *) BPF_FUNC_get_stackid;
static int (*bpf_probe_write_user)(void *dst, void *src, int size) =
static int (*bpf_probe_write_user)(void *dst, const void *src, int size) =
(void *) BPF_FUNC_probe_write_user;
static int (*bpf_current_task_under_cgroup)(void *map, int index) =
(void *) BPF_FUNC_current_task_under_cgroup;