From: Randy Dunlap Fix 23 of these sparse warnings on x86_64 allmodconfig: include/linux/cdrom.h:942:19: error: dubious bitfield without explicit `signed' or `unsigned' Signed-off-by: Randy Dunlap Cc: Jens Axboe Signed-off-by: Andrew Morton --- include/linux/cdrom.h | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) diff -puN include/linux/cdrom.h~cdrom-use-unsigned-bitfields include/linux/cdrom.h --- a/include/linux/cdrom.h~cdrom-use-unsigned-bitfields +++ a/include/linux/cdrom.h @@ -939,7 +939,7 @@ struct cdrom_device_info { int speed; /* maximum speed for reading data */ int capacity; /* number of discs in jukebox */ /* device-related storage */ - int options : 30; /* options flags */ + unsigned int options : 30; /* options flags */ unsigned mc_flags : 2; /* media change buffer flags */ int use_count; /* number of times device opened */ char name[20]; /* name of the device type */ _