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bpf: Silence purge_cand_cache build warning.

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When CONFIG_DEBUG_INFO_BTF_MODULES is not set
the following warning can be seen:
kernel/bpf/btf.c:6588:13: warning: 'purge_cand_cache' defined but not used [-Wunused-function]
Fix it.

Fixes: 1e89106da2 ("bpf: Add bpf_core_add_cands() and wire it into bpf_core_apply_relo_insn().")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211207014839.6976-1-alexei.starovoitov@gmail.com
This commit is contained in:
Alexei Starovoitov 2021-12-06 17:48:39 -08:00 committed by Andrii Nakryiko
parent d5284dedcc
commit 29f2e5bd94
1 changed files with 2 additions and 0 deletions
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kernel/bpf/btf.c
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@ -6560,6 +6560,7 @@ static struct bpf_cand_cache *populate_cand_cache(struct bpf_cand_cache *cands,
return new_cands;
}
#ifdef CONFIG_DEBUG_INFO_BTF_MODULES
static void __purge_cand_cache(struct btf *btf, struct bpf_cand_cache **cache,
int cache_size)
{
@ -6598,6 +6599,7 @@ static void purge_cand_cache(struct btf *btf)
__purge_cand_cache(btf, module_cand_cache, MODULE_CAND_CACHE_SIZE);
mutex_unlock(&cand_cache_mutex);
}
#endif
static struct bpf_cand_cache *
bpf_core_add_cands(struct bpf_cand_cache *cands, const struct btf *targ_btf,