xhci: dbc: Pass dbc pointer to endpoint init and exit functions.

struct xhci_hcd pointer is not needed for dbc endpoint init and exit,
it was only used to get to the dbc structure.
Pass the dbc pointer as a parameter to these functions instead.

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-13-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index 44fe936..6114b33 100644 (file)
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -319,10 +319,9 @@ int dbc_ep_queue(struct dbc_ep *dep, struct dbc_request *req,
        return ret;
 }
 
-static inline void xhci_dbc_do_eps_init(struct xhci_hcd *xhci, bool direction)
+static inline void xhci_dbc_do_eps_init(struct xhci_dbc *dbc, bool direction)
 {
        struct dbc_ep           *dep;
-       struct xhci_dbc         *dbc = xhci->dbc;
 
        dep                     = &dbc->eps[direction];
        dep->dbc                = dbc;
@@ -332,16 +331,14 @@ static inline void xhci_dbc_do_eps_init(struct xhci_hcd *xhci, bool direction)
        INIT_LIST_HEAD(&dep->list_pending);
 }
 
-static void xhci_dbc_eps_init(struct xhci_hcd *xhci)
+static void xhci_dbc_eps_init(struct xhci_dbc *dbc)
 {
-       xhci_dbc_do_eps_init(xhci, BULK_OUT);
-       xhci_dbc_do_eps_init(xhci, BULK_IN);
+       xhci_dbc_do_eps_init(dbc, BULK_OUT);
+       xhci_dbc_do_eps_init(dbc, BULK_IN);
 }
 
-static void xhci_dbc_eps_exit(struct xhci_hcd *xhci)
+static void xhci_dbc_eps_exit(struct xhci_dbc *dbc)
 {
-       struct xhci_dbc         *dbc = xhci->dbc;
-
        memset(dbc->eps, 0, sizeof(struct dbc_ep) * ARRAY_SIZE(dbc->eps));
 }
 
@@ -418,7 +415,7 @@ static int xhci_dbc_mem_init(struct xhci_hcd *xhci, gfp_t flags)
        string_length = xhci_dbc_populate_strings(dbc->string);
        xhci_dbc_init_contexts(dbc, string_length);
 
-       xhci_dbc_eps_init(xhci);
+       xhci_dbc_eps_init(dbc);
        dbc->state = DS_INITIALIZED;
 
        return 0;
@@ -449,7 +446,7 @@ static void xhci_dbc_mem_cleanup(struct xhci_hcd *xhci)
        if (!dbc)
                return;
 
-       xhci_dbc_eps_exit(xhci);
+       xhci_dbc_eps_exit(dbc);
 
        if (dbc->string) {
                dma_free_coherent(dbc->dev, dbc->string_size,