[PATCH 2/2] libbpf: fix discarded-qualifiers for strchr/strstr.

From: Damien Hourtoulle <[email protected]>

Glibc 2.43 added C23 const-preserving overloads:
https://sourceware.org/glibc/wiki/Release/2.43.

Fix three local variable declarations to use const char* instead of
char*, removing the need to discard the const qualifier returned by
strstr/strchr.

Signed-off-by: Damien Hourtoulle <[email protected]>
---
 lib/bpf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Submodule lib/bpf 374f780..6bba5da:
diff --git a/lib/bpf/src/libbpf.c b/lib/bpf/src/libbpf.c
index 617cfb9..9e88156 100644
--- a/lib/bpf/src/libbpf.c
+++ b/lib/bpf/src/libbpf.c
@@ -8179,7 +8179,7 @@ static int kallsyms_cb(unsigned long long sym_addr, char sym_type,
 	struct bpf_object *obj = ctx;
 	const struct btf_type *t;
 	struct extern_desc *ext;
-	char *res;
+	const char *res;
 
 	res = strstr(sym_name, ".llvm.");
 	if (sym_type == 'd' && res)
@@ -11482,8 +11482,8 @@ static int avail_kallsyms_cb(unsigned long long sym_addr, char sym_type,
 		 *
 		 *   [0] fb6a421fb615 ("kallsyms: Match symbols exactly with CONFIG_LTO_CLANG")
 		 */
-		char sym_trim[256], *psym_trim = sym_trim, *sym_sfx;
-
+		char sym_trim[256], *psym_trim = sym_trim;
+		const char *sym_sfx;
 		if (!(sym_sfx = strstr(sym_name, ".llvm.")))
 			return 0;
 
@@ -12067,7 +12067,7 @@ static int resolve_full_path(const char *file, char *result, size_t result_sz)
 		if (!search_paths[i])
 			continue;
 		for (s = search_paths[i]; s != NULL; s = strchr(s, ':')) {
-			char *next_path;
+			const char *next_path;
 			int seg_len;
 
 			if (s[0] == ':')
-- 
2.53.0