diff options
Diffstat (limited to 'tools/bpf/bpftool/map.c')
| -rw-r--r-- | tools/bpf/bpftool/map.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c index 101b8a881225..dc9a8967ab8c 100644 --- a/tools/bpf/bpftool/map.c +++ b/tools/bpf/bpftool/map.c @@ -383,7 +383,10 @@ static void print_entry_plain(struct bpf_map_info *info, unsigned char *key, printf(single_line ? " " : "\n"); printf("value:%c", break_names ? '\n' : ' '); - fprint_hex(stdout, value, info->value_size, " "); + if (value) + fprint_hex(stdout, value, info->value_size, " "); + else + printf("<no entry>"); printf("\n"); } else { @@ -398,8 +401,11 @@ static void print_entry_plain(struct bpf_map_info *info, unsigned char *key, for (i = 0; i < n; i++) { printf("value (CPU %02d):%c", i, info->value_size > 16 ? '\n' : ' '); - fprint_hex(stdout, value + i * step, - info->value_size, " "); + if (value) + fprint_hex(stdout, value + i * step, + info->value_size, " "); + else + printf("<no entry>"); printf("\n"); } } @@ -731,7 +737,11 @@ static int dump_map_elem(int fd, void *key, void *value, jsonw_string_field(json_wtr, "error", strerror(lookup_errno)); jsonw_end_object(json_wtr); } else { - print_entry_error(map_info, key, strerror(lookup_errno)); + if (errno == ENOENT) + print_entry_plain(map_info, key, NULL); + else + print_entry_error(map_info, key, + strerror(lookup_errno)); } return 0; |
