tools/resolve_btfids: Fix comparison of distinct pointer types warning in resolve_btfids

Add a type cast for set8->pairs to fix below compile warning:

main.c: In function 'sets_patch':
main.c:699:50: warning: comparison of distinct pointer types lacks a cast
  699 |        BUILD_BUG_ON(set8->pairs != &set8->pairs[0].id);
      |                                 ^~

Fixes: 9707ac4fe2f5 ("tools/resolve_btfids: Refactor set sorting with types from btf_ids.h")
Signed-off-by: Liwei Song <liwei.song.lsong@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20240722083305.4009723-1-liwei.song.lsong@gmail.com

diff --git a/tools/bpf/resolve_btfids/main.c b/tools/bpf/resolve_btfids/main.c
index 936ef95c3d3236fec15ef9b0fa5432cfdf3dfe93..d54aaa0619df95b6592612b5988a569eb02f624d 100644 (file)
--- a/tools/bpf/resolve_btfids/main.c
+++ b/tools/bpf/resolve_btfids/main.c
@@ -704,7 +704,7 @@ static int sets_patch(struct object *obj)
                         * Make sure id is at the beginning of the pairs
                         * struct, otherwise the below qsort would not work.
                         */
-                       BUILD_BUG_ON(set8->pairs != &set8->pairs[0].id);
+                       BUILD_BUG_ON((u32 *)set8->pairs != &set8->pairs[0].id);
                        qsort(set8->pairs, set8->cnt, sizeof(set8->pairs[0]), cmp_id);
 
                        /*