From 0fca92d18df4866c040249e7aee78ac37e0d47f1 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@linux.intel.com>
Date: Mon, 11 Mar 2019 14:17:57 +0000
Subject: [PATCH] usermem: fix warning caused by missing cast

---
 Kernel/usermem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Kernel/usermem.c b/Kernel/usermem.c
index 12745e08..ab5e3611 100644
--- a/Kernel/usermem.c
+++ b/Kernel/usermem.c
@@ -17,7 +17,7 @@
 usize_t valaddr(const uint8_t *base, usize_t size)
 {
 	if (base + size < base)
-		size = 0xFFFF - base + 1;
+		size = 0xFFFF - (uint16_t)base + 1;
 	if (!base || base < (const uint8_t *)PROGBASE ||
 		base > (const uint8_t *)(size_t)udata.u_top)
 		size = 0;
-- 
2.34.1