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From 0384fba1d0550f0bb2a6cfeb24b13d8c8186524d Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@redhat.com>
Date: Tue, 8 May 2018 09:01:12 +0000
Subject: pc-bios/s390-ccw: size_t should be unsigned

"size_t" should be an unsigned type according to the C standard.
Thus we should also use this convention in the s390-ccw firmware to avoid
confusion. I checked the sources, and apart from one spot in libc.c, the
code should all be fine with this change.

Buglink: https://bugs.launchpad.net/qemu/+bug/1753437
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Collin Walling <walling@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit e4f869621203955761cf274c87d5595e9facd319)
---
 pc-bios/s390-ccw/libc.c | 2 +-
 pc-bios/s390-ccw/libc.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/pc-bios/s390-ccw/libc.c b/pc-bios/s390-ccw/libc.c
index 38ea77d..a786566 100644
--- a/pc-bios/s390-ccw/libc.c
+++ b/pc-bios/s390-ccw/libc.c
@@ -63,7 +63,7 @@ uint64_t atoui(const char *str)
  */
 char *uitoa(uint64_t num, char *str, size_t len)
 {
-    size_t num_idx = 1; /* account for NUL */
+    long num_idx = 1; /* account for NUL */
     uint64_t tmp = num;
 
     IPL_assert(str != NULL, "uitoa: no space allocated to store string");
diff --git a/pc-bios/s390-ccw/libc.h b/pc-bios/s390-ccw/libc.h
index 63ece70..818517f 100644
--- a/pc-bios/s390-ccw/libc.h
+++ b/pc-bios/s390-ccw/libc.h
@@ -12,7 +12,7 @@
 #ifndef S390_CCW_LIBC_H
 #define S390_CCW_LIBC_H
 
-typedef long               size_t;
+typedef unsigned long      size_t;
 typedef int                bool;
 typedef unsigned char      uint8_t;
 typedef unsigned short     uint16_t;
-- 
1.8.3.1