[PATCH v1] hpet: Make cmd parameter of hpet_ioctl_common() unsigned

From: Matthias Kaehlcke
Date: Mon Mar 13 2017 - 14:58:27 EST

The value passed by the two callers of the function is unsigned anyway.

Making the parameter unsigned fixes the following warning when building
with clang:

drivers/char/hpet.c:588:7: error: overflow converting case value to switch condition type (2149083139 to 18446744071563667459) [-Werror,-Wswitch]
include/uapi/linux/hpet.h:18:19: note: expanded from macro 'HPET_INFO'
include/uapi/asm-generic/ioctl.h:77:28: note: expanded from macro '_IOR'
include/uapi/asm-generic/ioctl.h:66:2: note: expanded from macro '_IOC'
(((dir) << _IOC_DIRSHIFT) | \

Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
drivers/char/hpet.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 20b32bb8c2af..0d633b76c29e 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -574,7 +574,7 @@ static inline unsigned long hpet_time_div(struct hpets *hpets,

static int
-hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
+hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg,
struct hpet_info *info)
struct hpet_timer __iomem *timer;