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libbpf: Simplify the find_elf_sec_sz() function

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The check in the last return statement is unnecessary, we can just return
the ret variable.

But we can simplify the function further by returning 0 immediately if we
find the section size and -ENOENT otherwise.

Thus we can also remove the ret variable.

Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220223085244.3058118-1-ytcoode@gmail.com
This commit is contained in:
Yuntao Wang 2022-02-23 16:52:44 +08:00 committed by Andrii Nakryiko
parent a19df71394
commit 08894d9c64
1 changed files with 2 additions and 4 deletions
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6
tools/lib/bpf/libbpf.c
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@ -1374,22 +1374,20 @@ static bool bpf_map_type__is_map_in_map(enum bpf_map_type type)
static int find_elf_sec_sz(const struct bpf_object *obj, const char *name, __u32 *size)
{
int ret = -ENOENT;
Elf_Data *data;
Elf_Scn *scn;
*size = 0;
if (!name)
return -EINVAL;
scn = elf_sec_by_name(obj, name);
data = elf_sec_data(obj, scn);
if (data) {
ret = 0; /* found it */
*size = data->d_size;
return 0; /* found it */
}
return *size ? 0 : ret;
return -ENOENT;
}
static int find_elf_var_offset(const struct bpf_object *obj, const char *name, __u32 *off)