diff options
| author | Dmitry Torokhov <dtor@vmware.com> | 2011-03-20 02:15:17 -0700 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2011-04-13 16:19:46 -0700 |
| commit | 5a6c2f3ff039154872ce597952f8b8900ea0d732 (patch) | |
| tree | ec159272a5031ac9baa7c98dcbb09ca58b96050a /drivers | |
| parent | 2868a2b1ba8f9c7f6c4170519ebb6c62934df70e (diff) | |
USB: xhci - fix unsafe macro definitions
Macro arguments used in expressions need to be enclosed in parenthesis
to avoid unpleasant surprises.
This should be queued for kernels back to 2.6.31
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/xhci.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 07e263063e37..91b1a237c11e 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -232,7 +232,7 @@ struct xhci_op_regs { * notification type that matches a bit set in this bit field. */ #define DEV_NOTE_MASK (0xffff) -#define ENABLE_DEV_NOTE(x) (1 << x) +#define ENABLE_DEV_NOTE(x) (1 << (x)) /* Most of the device notification types should only be used for debug. * SW does need to pay attention to function wake notifications. */ @@ -601,11 +601,11 @@ struct xhci_ep_ctx { #define EP_STATE_STOPPED 3 #define EP_STATE_ERROR 4 /* Mult - Max number of burtst within an interval, in EP companion desc. */ -#define EP_MULT(p) ((p & 0x3) << 8) +#define EP_MULT(p) (((p) & 0x3) << 8) /* bits 10:14 are Max Primary Streams */ /* bit 15 is Linear Stream Array */ /* Interval - period between requests to an endpoint - 125u increments. */ -#define EP_INTERVAL(p) ((p & 0xff) << 16) +#define EP_INTERVAL(p) (((p) & 0xff) << 16) #define EP_INTERVAL_TO_UFRAMES(p) (1 << (((p) >> 16) & 0xff)) #define EP_MAXPSTREAMS_MASK (0x1f << 10) #define EP_MAXPSTREAMS(p) (((p) << 10) & EP_MAXPSTREAMS_MASK) |