Subject: [PATCH v2 1/9] compat/mmap: mark unused argument in git_munmap()

From: Jeff King <[email-masked]>
Date: Tue, 18 Nov 2025 04:11:56 -0500

Our mmap compat code emulates mapping by using malloc/free. Our
git_munmap() must take a "length" parameter to match the interface of
munmap(), but we don't use it (it is up to the allocator to know how big
the block is in free()).

Let's mark it as UNUSED to avoid complaints from -Wunused-parameter.
Otherwise you cannot build with "make DEVELOPER=1 NO_MMAP=1".

Signed-off-by: Jeff King <[email-masked]>
---
 compat/mmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compat/mmap.c b/compat/mmap.c
index 2fe1c7732e..1a118711f7 100644
--- a/compat/mmap.c
+++ b/compat/mmap.c
@@ -38,7 +38,7 @@ void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t of
 	return start;
 }
 
-int git_munmap(void *start, size_t length)
+int git_munmap(void *start, size_t length UNUSED)
 {
 	free(start);
 	return 0;
-- 
2.52.0.278.gadc6434dc3