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tools/lib/libbpf.c: fix string format to allow build on arm32 

On arm32, 'cd tools/testing/selftests/bpf && make' fails with:

libbpf.c:80:10: error: format ‘%ld’ expects argument of type ‘long int’, but argument 4 has type ‘int64_t {aka long long int}’ [-Werror=format=]
   (func)("libbpf: " fmt, ##__VA_ARGS__); \
          ^
libbpf.c:83:30: note: in expansion of macro ‘__pr’
 #define pr_warning(fmt, ...) __pr(__pr_warning, fmt, ##__VA_ARGS__)
                              ^~~~
libbpf.c:1072:3: note: in expansion of macro ‘pr_warning’
   pr_warning("map:%s value_type:%s has BTF type_size:%ld != value_size:%u\n",

To fix, typecast 'key_size' and amend format string.

Signed-off-by: Sirio Balmelli <sirio@b-ad.ch>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Sirio Balmelli 2018-05-23 18:17:07 +02:00 committed by Daniel Borkmann
parent 167381f3ea
commit a1c818109c
1 changed files with 4 additions and 4 deletions
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8
tools/lib/bpf/libbpf.c
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@ -1042,8 +1042,8 @@ static int bpf_map_find_btf_info(struct bpf_map *map, const struct btf *btf)
} }
if (def->key_size != key_size) { if (def->key_size != key_size) {
pr_warning("map:%s key_type:%s has BTF type_size:%ld != key_size:%u\n", pr_warning("map:%s key_type:%s has BTF type_size:%u != key_size:%u\n",
map->name, name, key_size, def->key_size); map->name, name, (unsigned int)key_size, def->key_size);
return -EINVAL; return -EINVAL;
} }
@ -1069,8 +1069,8 @@ static int bpf_map_find_btf_info(struct bpf_map *map, const struct btf *btf)
} }
if (def->value_size != value_size) { if (def->value_size != value_size) {
pr_warning("map:%s value_type:%s has BTF type_size:%ld != value_size:%u\n", pr_warning("map:%s value_type:%s has BTF type_size:%u != value_size:%u\n",
map->name, name, value_size, def->value_size); map->name, name, (unsigned int)value_size, def->value_size);
return -EINVAL; return -EINVAL;
} }