patches/1450-xhci-xhci-hub-use-port-structure-members-instead-of-.patch

From 64d0a58daf575acf10618040ef6f24aa9fa40f79 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Mon, 21 May 2018 16:40:02 +0300
Subject: [PATCH 1450/1795] xhci: xhci-hub: use port structure members instead
 of xhci_get_ports()

xhci_get_ports() is one of the last functions using port_arrays in
xhci-hub.c. We get the same data directly from hub and port structures
instead, so convert and remove both xhci_get_ports() and port_arrays from
all function that no longer need it.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 925f349d4dca1357813efdc37ec08134d79b3288)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/usb/host/xhci-hub.c | 28 ++++------------------------
 1 file changed, 4 insertions(+), 24 deletions(-)

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 05115b81f6bd..a4b95d019f84 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -541,22 +541,6 @@ static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue,
 			port_change_bit, wIndex, port_status);
 }
 
-static int xhci_get_ports(struct usb_hcd *hcd, __le32 __iomem ***port_array)
-{
-	int max_ports;
-	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
-
-	if (hcd->speed >= HCD_USB3) {
-		max_ports = xhci->num_usb3_ports;
-		*port_array = xhci->usb3_ports;
-	} else {
-		max_ports = xhci->num_usb2_ports;
-		*port_array = xhci->usb2_ports;
-	}
-
-	return max_ports;
-}
-
 struct xhci_hub *xhci_get_rhub(struct usb_hcd *hcd)
 {
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
@@ -1032,7 +1016,6 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 	unsigned long flags;
 	u32 temp, status;
 	int retval = 0;
-	__le32 __iomem **port_array;
 	int slot_id;
 	struct xhci_bus_state *bus_state;
 	u16 link_state = 0;
@@ -1044,7 +1027,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 
 	rhub = xhci_get_rhub(hcd);
 	ports = rhub->ports;
-	max_ports = xhci_get_ports(hcd, &port_array);
+	max_ports = rhub->num_ports;
 	bus_state = &xhci->bus_state[hcd_index(hcd)];
 
 	spin_lock_irqsave(&xhci->lock, flags);
@@ -1425,7 +1408,6 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf)
 	int i, retval;
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
 	int max_ports;
-	__le32 __iomem **port_array;
 	struct xhci_bus_state *bus_state;
 	bool reset_change = false;
 	struct xhci_hub *rhub;
@@ -1433,7 +1415,7 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf)
 
 	rhub = xhci_get_rhub(hcd);
 	ports = rhub->ports;
-	max_ports = xhci_get_ports(hcd, &port_array);
+	max_ports = rhub->num_ports;
 	bus_state = &xhci->bus_state[hcd_index(hcd)];
 
 	/* Initial status is no changes */
@@ -1483,7 +1465,6 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
 {
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
 	int max_ports, port_index;
-	__le32 __iomem **port_array;
 	struct xhci_bus_state *bus_state;
 	unsigned long flags;
 	struct xhci_hub *rhub;
@@ -1491,7 +1472,7 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
 
 	rhub = xhci_get_rhub(hcd);
 	ports = rhub->ports;
-	max_ports = xhci_get_ports(hcd, &port_array);
+	max_ports = rhub->num_ports;
 	bus_state = &xhci->bus_state[hcd_index(hcd)];
 
 	spin_lock_irqsave(&xhci->lock, flags);
@@ -1592,7 +1573,6 @@ int xhci_bus_resume(struct usb_hcd *hcd)
 {
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
 	struct xhci_bus_state *bus_state;
-	__le32 __iomem **port_array;
 	unsigned long flags;
 	int max_ports, port_index;
 	int slot_id;
@@ -1604,7 +1584,7 @@ int xhci_bus_resume(struct usb_hcd *hcd)
 
 	rhub = xhci_get_rhub(hcd);
 	ports = rhub->ports;
-	max_ports = xhci_get_ports(hcd, &port_array);
+	max_ports = rhub->num_ports;
 	bus_state = &xhci->bus_state[hcd_index(hcd)];
 
 	if (time_before(jiffies, bus_state->next_statechange))
-- 
2.19.0