nvme: update timeout module parameter type

BugLink: https://bugs.launchpad.net/bugs/1729119

The underlying blk_mq_tag_set, and request timeout parameters support an
unsigned int. Extend the size of the nvme module parameters for io and
admin commands to match.
Signed-off-by: Marc Olson <marcolso@amazon.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
(backported from commit 8ae4e447)
Signed-off-by: Daniel Axtens <daniel.axtens@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Colin King <colin.king@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

drivers/nvme/host/nvme.h

@@ -29,10 +29,10 @@ enum {
 	NVME_SC_CANCELLED		= -EINTR,
 };
 
-extern unsigned char nvme_io_timeout;
+extern unsigned int nvme_io_timeout;
 #define NVME_IO_TIMEOUT	(nvme_io_timeout * HZ)
 
-extern unsigned char admin_timeout;
+extern unsigned int admin_timeout;
 #define ADMIN_TIMEOUT	(admin_timeout * HZ)
 
 extern unsigned char shutdown_timeout;

drivers/nvme/host/pci.c

@@ -61,12 +61,12 @@
 #define NVME_NR_AEN_COMMANDS	1
 #define NVME_AQ_BLKMQ_DEPTH	(NVME_AQ_DEPTH - NVME_NR_AEN_COMMANDS)
 
-unsigned char admin_timeout = 60;
-module_param(admin_timeout, byte, 0644);
+unsigned int admin_timeout = 60;
+module_param(admin_timeout, uint, 0644);
 MODULE_PARM_DESC(admin_timeout, "timeout in seconds for admin commands");
 
-unsigned char nvme_io_timeout = 30;
-module_param_named(io_timeout, nvme_io_timeout, byte, 0644);
+unsigned int nvme_io_timeout = 30;
+module_param_named(io_timeout, nvme_io_timeout, uint, 0644);
 MODULE_PARM_DESC(io_timeout, "timeout in seconds for I/O");
 
 unsigned char shutdown_timeout = 5;