From: Roland McGrath <roland@hack.frob.com>
Date: Mon, 8 Apr 2013 21:31:38 +0000 (-0700)
Subject: BZ#14280: Fix Hurd ioctl macro to avoid warning.
X-Git-Tag: glibc-2.18~418
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=61c23e6234db0e94cd850e88536401910ac61516;p=thirdparty%2Fglibc.git

BZ#14280: Fix Hurd ioctl macro to avoid warning.
---

diff --git a/ChangeLog b/ChangeLog
index 9e33f24922e..20be9856308 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2013-04-08  Roland McGrath  <roland@hack.frob.com>
+
+	[BZ #14280]
+	* sysdeps/mach/hurd/bits/ioctls.h (_IOTS): Cast to enum __ioctl_datum
+	when computing value.
+
 2013-04-06  Carlos O'Donell  <carlos@redhat.com>
 
 	* math/README.libm-test (How can I generate "libm-test-ulps"?):
diff --git a/sysdeps/mach/hurd/bits/ioctls.h b/sysdeps/mach/hurd/bits/ioctls.h
index 4917055f910..fe3ca082648 100644
--- a/sysdeps/mach/hurd/bits/ioctls.h
+++ b/sysdeps/mach/hurd/bits/ioctls.h
@@ -141,7 +141,7 @@ enum __ioctl_datum { IOC_8, IOC_16, IOC_32, IOC_64 };
 
 /* Construct an individual type field for TYPE.  */
 #define _IOTS(type)	\
-  (sizeof (type) == 8 ? IOC_64 : (sizeof (type) >> 1))
+  (sizeof (type) == 8 ? IOC_64 : (enum __ioctl_datum) (sizeof (type) >> 1))
 
 /* Construct a type information field for
    a single argument of the scalar TYPE.  */