From: Mehrdad Arshad Rad arshad.rad@gmail.com
[ Upstream commit 64165ddf8ea184631c65e3bbc8d59f6d940590ca ]
Fix bpf_map_lookup_and_delete_elem_flags() to pass the return code through libbpf_err_errno() as we do similarly in bpf_map_lookup_and_delete_elem().
Fixes: f12b65432728 ("libbpf: Streamline error reporting for low-level APIs") Signed-off-by: Mehrdad Arshad Rad arshad.rad@gmail.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Acked-by: Yonghong Song yhs@fb.com Link: https://lore.kernel.org/bpf/20211104171354.11072-1-arshad.rad@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/lib/bpf/bpf.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 86dcac44f32f6..2c3ac0edf6ad3 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -480,6 +480,7 @@ int bpf_map_lookup_and_delete_elem(int fd, const void *key, void *value) int bpf_map_lookup_and_delete_elem_flags(int fd, const void *key, void *value, __u64 flags) { union bpf_attr attr; + int ret;
memset(&attr, 0, sizeof(attr)); attr.map_fd = fd; @@ -487,7 +488,8 @@ int bpf_map_lookup_and_delete_elem_flags(int fd, const void *key, void *value, _ attr.value = ptr_to_u64(value); attr.flags = flags;
- return sys_bpf(BPF_MAP_LOOKUP_AND_DELETE_ELEM, &attr, sizeof(attr)); + ret = sys_bpf(BPF_MAP_LOOKUP_AND_DELETE_ELEM, &attr, sizeof(attr)); + return libbpf_err_errno(ret); }
int bpf_map_delete_elem(int fd, const void *key)