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Date: Sun, 20 Mar 2022 06:08:14 +0000 From: Yafang Shao <laoar.shao@...il.com> To: ast@...nel.org, daniel@...earbox.net, andrii@...nel.org, kafai@...com, songliubraving@...com, yhs@...com, john.fastabend@...il.com, kpsingh@...nel.org Cc: netdev@...r.kernel.org, bpf@...r.kernel.org, Yafang Shao <laoar.shao@...il.com>, Joanne Koong <joannekoong@...com> Subject: [PATCH] bpf: bpftool: fix print error when show bpf map If there is no btf_id or frozen, it will not show the pids, but the pids doesn't depends on any one of them. Below is the result after this change, $ ./bpftool map show 2: lpm_trie flags 0x1 key 8B value 8B max_entries 1 memlock 4096B pids systemd(1) 3: lpm_trie flags 0x1 key 20B value 8B max_entries 1 memlock 4096B pids systemd(1) While before this change, the 'pids systemd(1)' can't be displayed. Fixes: 9330986c0300 ("bpf: Add bloom filter map implementation") Signed-off-by: Yafang Shao <laoar.shao@...il.com> Cc: Joanne Koong <joannekoong@...com> --- tools/bpf/bpftool/map.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c index f91d9bf9054e..c26378f20831 100644 --- a/tools/bpf/bpftool/map.c +++ b/tools/bpf/bpftool/map.c @@ -620,17 +620,14 @@ static int show_map_close_plain(int fd, struct bpf_map_info *info) u32_as_hash_field(info->id)) printf("\n\tpinned %s", (char *)entry->value); } - printf("\n"); if (frozen_str) { frozen = atoi(frozen_str); free(frozen_str); } - if (!info->btf_id && !frozen) - return 0; - - printf("\t"); + if (info->btf_id || frozen) + printf("\n\t"); if (info->btf_id) printf("btf_id %d", info->btf_id); -- 2.17.1
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