This patch fixes the following sparse warnings:

block/ioctl.c:209:16: warning: incorrect type in argument 1 (different address spaces)
block/ioctl.c:209:16:    expected void const volatile [noderef] <asn:1> *
block/ioctl.c:209:16:    got signed int [usertype] *argp
block/ioctl.c:214:16: warning: incorrect type in argument 1 (different address spaces)
block/ioctl.c:214:16:    expected void const volatile [noderef] <asn:1> *
block/ioctl.c:214:16:    got unsigned int [usertype] *argp
block/ioctl.c:666:40: warning: incorrect type in argument 1 (different address spaces)
block/ioctl.c:666:40:    expected signed int [usertype] *argp
block/ioctl.c:666:40:    got void [noderef] <asn:1> *argp
block/ioctl.c:672:41: warning: incorrect type in argument 1 (different address spaces)
block/ioctl.c:672:41:    expected unsigned int [usertype] *argp
block/ioctl.c:672:41:    got void [noderef] <asn:1> *argp

Fixes: 9b81648c

 ("compat_ioctl: simplify up block/ioctl.c")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>