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libbpf: Fix lookup_and_delete_elem_flags error reporting

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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
This commit is contained in:
Mehrdad Arshad Rad
2021-11-04 10:13:54 -07:00
committed by Andrii Nakryiko
parent 2ab2615926
commit 88209a3c44
1 changed files with 3 additions and 1 deletions
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4
src/bpf.c
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@@ -515,6 +515,7 @@ 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) int bpf_map_lookup_and_delete_elem_flags(int fd, const void *key, void *value, __u64 flags)
{ {
union bpf_attr attr; union bpf_attr attr;
int ret;
memset(&attr, 0, sizeof(attr)); memset(&attr, 0, sizeof(attr));
attr.map_fd = fd; attr.map_fd = fd;
@@ -522,7 +523,8 @@ int bpf_map_lookup_and_delete_elem_flags(int fd, const void *key, void *value, _
attr.value = ptr_to_u64(value); attr.value = ptr_to_u64(value);
attr.flags = flags; 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) int bpf_map_delete_elem(int fd, const void *key)