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bpf: Compile out btf_parse_module() if module BTF is not enabled 

Make sure btf_parse_module() is compiled out if module BTFs are not enabled.

Fixes: 36e68442d1 ("bpf: Load and verify kernel module BTFs")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201111040645.903494-1-andrii@kernel.org
zero-sugar-mainline-defconfig
Andrii Nakryiko 2020-11-10 20:06:45 -08:00 committed by Alexei Starovoitov
parent 9600d623db
commit 7112d12798
1 changed files with 4 additions and 0 deletions
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4
kernel/bpf/btf.c
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@ -4478,6 +4478,8 @@ errout:
return ERR_PTR(err);
}
#ifdef CONFIG_DEBUG_INFO_BTF_MODULES
static struct btf *btf_parse_module(const char *module_name, const void *data, unsigned int data_size)
{
struct btf_verifier_env *env = NULL;
@ -4547,6 +4549,8 @@ errout:
return ERR_PTR(err);
}
#endif /* CONFIG_DEBUG_INFO_BTF_MODULES */
struct btf *bpf_prog_get_target_btf(const struct bpf_prog *prog)
{
struct bpf_prog *tgt_prog = prog->aux->dst_prog;