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authorSarah Sharp <sarah.a.sharp@linux.intel.com>2009-12-09 18:59:03 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2010-03-02 17:53:09 -0500
commita1d78c16bd31a715785e21967ac6110b386a3c1f (patch)
treeb0df8ca079b2afad844276fdf2ece21dbcdc38fa /drivers/usb/host/xhci.h
parent412566bd716397e28e81fc9b20804bc6a6daf14d (diff)
USB: xhci: Allow allocation of commands without input contexts.
The xhci_command structure is the basic structure for issuing commands to the xHCI hardware. It contains a struct completion (so that the issuing function can wait on the command), command status, and a input context that is used to pass information to the hardware. Not all commands need the input context, so make it optional to allocate. Allow xhci_free_container_ctx() to be passed a NULL input context, to make freeing the xhci_command structure simple. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/xhci.h')
-rw-r--r--drivers/usb/host/xhci.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 61747f3c5c8f..902be9647c60 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1237,7 +1237,8 @@ void xhci_free_or_cache_endpoint_ring(struct xhci_hcd *xhci,
1237 struct xhci_virt_device *virt_dev, 1237 struct xhci_virt_device *virt_dev,
1238 unsigned int ep_index); 1238 unsigned int ep_index);
1239struct xhci_command *xhci_alloc_command(struct xhci_hcd *xhci, 1239struct xhci_command *xhci_alloc_command(struct xhci_hcd *xhci,
1240 bool allocate_completion, gfp_t mem_flags); 1240 bool allocate_in_ctx, bool allocate_completion,
1241 gfp_t mem_flags);
1241void xhci_free_command(struct xhci_hcd *xhci, 1242void xhci_free_command(struct xhci_hcd *xhci,
1242 struct xhci_command *command); 1243 struct xhci_command *command);
1243 1244