[PATCH 4/6] Cygwin: Fix warning about narrowing conversions in tape options

[Jon Turney]

Fix a gcc 12 warning about a narrowing conversion in case labels for
tape options.

> In file included from /wip/cygwin/src/winsup/cygwin/include/sys/mtio.h:14,
>                  from ../../../../src/winsup/cygwin/fhandler/tape.cc:13:
> ../../../../src/winsup/cygwin/fhandler/tape.cc: In member function ‘int 
> mtinfo_drive::set_options(HANDLE, int32_t)’:
> ../../../../src/winsup/cygwin/fhandler/tape.cc:965:12: error: narrowing 
> conversion of ‘4026531840’ from ‘unsigned int’ to ‘int’ [-Wnarrowing]
---
 winsup/cygwin/fhandler/tape.cc        | 4 ++--
 winsup/cygwin/local_includes/mtinfo.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/winsup/cygwin/fhandler/tape.cc b/winsup/cygwin/fhandler/tape.cc
index 0e235f16c..732fd1bb7 100644
--- a/winsup/cygwin/fhandler/tape.cc
+++ b/winsup/cygwin/fhandler/tape.cc
@@ -894,9 +894,9 @@ mtinfo_drive::get_status (HANDLE mt, struct mtget *get)
 }
 
 int
-mtinfo_drive::set_options (HANDLE mt, int32_t options)
+mtinfo_drive::set_options (HANDLE mt, uint32_t options)
 {
-  int32_t what = (options & MT_ST_OPTIONS);
+  uint32_t what = (options & MT_ST_OPTIONS);
   bool call_setparams = false;
   bool set;
   TAPE_SET_DRIVE_PARAMETERS sdp =
diff --git a/winsup/cygwin/local_includes/mtinfo.h 
b/winsup/cygwin/local_includes/mtinfo.h
index 03aabbfd0..46f8b1be9 100644
--- a/winsup/cygwin/local_includes/mtinfo.h
+++ b/winsup/cygwin/local_includes/mtinfo.h
@@ -101,7 +101,7 @@ class mtinfo_drive
   int set_compression (HANDLE mt, int32_t count);
   int set_blocksize (HANDLE mt, DWORD count);
   int get_status (HANDLE mt, struct mtget *get);
-  int set_options (HANDLE mt, int32_t options);
+  int set_options (HANDLE mt, uint32_t options);
   int async_wait (HANDLE mt, DWORD *bytes_written);
 
 public:
-- 
2.45.1