[newlib-cygwin/cygwin-3_5-branch] Cygwin: Fix warning about narrowing conversions in tape options

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=25a0df8a70dfc886791e832f63c65aebe315c8cf

commit 25a0df8a70dfc886791e832f63c65aebe315c8cf
Author:     Jon Turney <jon.turney@dronecode.org.uk>
AuthorDate: Sun Aug 4 17:01:38 2024 +0100
Commit:     Corinna Vinschen <corinna@vinschen.de>
CommitDate: Thu Aug 22 19:58:49 2024 +0200

    Cygwin: Fix warning about narrowing conversions in tape options
    
    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]
    
    Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>

Diff:
---
 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 0e235f16c65c..732fd1bb7f55 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 03aabbfd0e3c..46f8b1be95f4 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: