[PATCH v2 1/2] tools/lib/bpf: fix const-qualifier discard in resolve_full_path

[Clark Williams <clrkwllms@kernel.org>]

[ Upstream commit d70f79fef65810faf64dbae1f3a1b5623cdb2345 ]

strchr() now propagates const when passed a const char * argument in
newer GCC/glibc combinations, causing -Werror=discarded-qualifiers to
fire on the assignment to next_path. Declare next_path as const char *
since it is only used for pointer arithmetic, never written through.

[ clrkwllms: only the next_path change from the upstream commit applies
  to 6.1.y ]

Assisted-by: Claude:claude-sonnet-4.6
Signed-off-by: Clark Williams <clrkwllms@kernel.org>
---
 tools/lib/bpf/libbpf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 7bd6aff6e260..33b214a91338 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -10748,7 +10748,7 @@ 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] == ':')
-- 
2.54.0