diff options
| author | Matt Evans <matt@ozlabs.org> | 2011-06-01 10:22:55 +1000 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2011-06-02 16:37:47 -0700 |
| commit | f5960b698eb50a39fce1a066dc19a6a5a1148e16 (patch) | |
| tree | d1f08656be5ffd40f4268d874801f91016508e3e /drivers/usb/host/xhci.c | |
| parent | 55922c9d1b84b89cb946c777fddccb3247e7df2c (diff) | |
| download | blackbird-op-linux-f5960b698eb50a39fce1a066dc19a6a5a1148e16.tar.gz blackbird-op-linux-f5960b698eb50a39fce1a066dc19a6a5a1148e16.zip | |
xhci: Remove some unnecessary casts and tidy some endian swap code
Some of the recently-added cpu_to_leXX and leXX_to_cpu made things somewhat
messy; this patch neatens some of these areas, removing unnecessary casts
in those parts also. In some places (where Y & Z are constants) a
comparison of (leXX_to_cpu(X) & Y) == Z has been replaced with
(X & cpu_to_leXX(Y)) == cpu_to_leXX(Z). The endian reversal of the
constants should wash out at compile time.
Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index d9660eb97eb9..743cf80debb1 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1333,8 +1333,8 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev, /* If the HC already knows the endpoint is disabled, * or the HCD has noted it is disabled, ignore this request */ - if ((le32_to_cpu(ep_ctx->ep_info) & EP_STATE_MASK) == - EP_STATE_DISABLED || + if (((ep_ctx->ep_info & cpu_to_le32(EP_STATE_MASK)) == + cpu_to_le32(EP_STATE_DISABLED)) || le32_to_cpu(ctrl_ctx->drop_flags) & xhci_get_endpoint_flag(&ep->desc)) { xhci_warn(xhci, "xHCI %s called with disabled ep %p\n", @@ -1725,8 +1725,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci, /* Enqueue pointer can be left pointing to the link TRB, * we must handle that */ - if ((le32_to_cpu(command->command_trb->link.control) - & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK)) + if (TRB_TYPE_LINK_LE32(command->command_trb->link.control)) command->command_trb = xhci->cmd_ring->enq_seg->next->trbs; @@ -2519,8 +2518,7 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev) /* Enqueue pointer can be left pointing to the link TRB, * we must handle that */ - if ((le32_to_cpu(reset_device_cmd->command_trb->link.control) - & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK)) + if (TRB_TYPE_LINK_LE32(reset_device_cmd->command_trb->link.control)) reset_device_cmd->command_trb = xhci->cmd_ring->enq_seg->next->trbs; |
