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xhci: dbc: simplify dbc requests allocation and queueing

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Don't pass endpoint pointer, dbctty should not be aware of
struct dbc_ep, knowing the direction is enough.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-23-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman
2020-07-23 17:45:25 +03:00
committed by Greg Kroah-Hartman
parent 11e229a758
commit e0aa56dc7b
3 changed files with 52 additions and 36 deletions
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12
drivers/usb/host/xhci-dbgcap.h
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@@ -88,7 +88,7 @@ struct dbc_ep {
struct xhci_dbc *dbc;
struct list_head list_pending;
struct xhci_ring *ring;
unsigned direction:1;
unsigned int direction:1;
};
#define DBC_QUEUE_SIZE 16
@@ -147,7 +147,7 @@ struct dbc_request {
int status;
unsigned int actual;
struct dbc_ep *dep;
struct xhci_dbc *dbc;
struct list_head list_pending;
dma_addr_t trb_dma;
union xhci_trb *trb;
@@ -196,9 +196,11 @@ int xhci_dbc_tty_register_driver(struct xhci_hcd *xhci);
void xhci_dbc_tty_unregister_driver(void);
int xhci_dbc_tty_register_device(struct xhci_dbc *dbc);
void xhci_dbc_tty_unregister_device(struct xhci_dbc *dbc);
struct dbc_request *dbc_alloc_request(struct dbc_ep *dep, gfp_t gfp_flags);
void dbc_free_request(struct dbc_ep *dep, struct dbc_request *req);
int dbc_ep_queue(struct dbc_ep *dep, struct dbc_request *req, gfp_t gfp_flags);
struct dbc_request *dbc_alloc_request(struct xhci_dbc *dbc,
unsigned int direction,
gfp_t flags);
void dbc_free_request(struct dbc_request *req);
int dbc_ep_queue(struct dbc_request *req);
#ifdef CONFIG_PM
int xhci_dbc_suspend(struct xhci_hcd *xhci);
int xhci_dbc_resume(struct xhci_hcd *xhci);