[linux-kernel] Fix unused variable warnings with malloc, calloc, and free

diff --git a/contrib/linux-kernel/zstd_deps.h b/contrib/linux-kernel/zstd_deps.h
index d4ea0b2a4d4a2d151b4c784fd8f8f88bdd4d217b..44ec0328f8e8db016ac4905b54d035d38e33db1c 100644 (file)
--- a/contrib/linux-kernel/zstd_deps.h
+++ b/contrib/linux-kernel/zstd_deps.h
@@ -56,9 +56,9 @@ typedef int64_t  S64;
 #ifndef ZSTD_DEPS_MALLOC
 #define ZSTD_DEPS_MALLOC
 
-#define ZSTD_malloc(s) (NULL)
-#define ZSTD_free(p) ((void)0)
-#define ZSTD_calloc(n,s) (NULL)
+#define ZSTD_malloc(s) ({ (void)(s); NULL; })
+#define ZSTD_free(p) ((void)(p))
+#define ZSTD_calloc(n,s) ({ (void)(n); (void)(s); NULL; })
 
 #endif /* ZSTD_DEPS_MALLOC */
 #endif /* ZSTD_DEPS_NEED_MALLOC */