USB: straighten out port feature vs. port status usage

This patch (as1349b) clears up the confusion in many USB host
controller drivers between port features and port statuses.  In mosty
cases it's true that the status bit is in the position given by the
corresponding feature value, but that's not always true and it's not
guaranteed in the USB spec.

There's no functional change, just replacing expressions of the form
(1 << USB_PORT_FEAT_x) with USB_PORT_STAT_x, which has the same value.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 9 insertions, 9 deletions

diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index cfdac6da955..13f7d1200bc 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -1923,7 +1923,7 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
                  * Even if OWNER is set, so the port is owned by the
                  * companion controller, khubd needs to be able to clear
                  * the port-change status bits (especially
-                 * USB_PORT_FEAT_C_CONNECTION).
+                 * USB_PORT_STAT_C_CONNECTION).
                  */
 
                 switch (wValue) {
@@ -1987,7 +1987,7 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
 
                 /* wPortChange bits */
                 if (temp & PORT_CSC)
-                        status |= 1 << USB_PORT_FEAT_C_CONNECTION;
+                        status |= USB_PORT_STAT_C_CONNECTION << 16;
 
 
                 /* whoever resumes must GetPortStatus to complete it!! */
@@ -2007,7 +2007,7 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
                         /* resume completed? */
                         else if (time_after_eq(jiffies,
                                         priv->reset_done)) {
-                                status |= 1 << USB_PORT_FEAT_C_SUSPEND;
+                                status |= USB_PORT_STAT_C_SUSPEND << 16;
                                 priv->reset_done = 0;
 
                                 /* stop resume signaling */
@@ -2031,7 +2031,7 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
                 if ((temp & PORT_RESET)
                                 && time_after_eq(jiffies,
                                         priv->reset_done)) {
-                        status |= 1 << USB_PORT_FEAT_C_RESET;
+                        status |= USB_PORT_STAT_C_RESET << 16;
                         priv->reset_done = 0;
 
                         /* force reset to complete */
@@ -2062,18 +2062,18 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
                         printk(KERN_ERR "Warning: PORT_OWNER is set\n");
 
                 if (temp & PORT_CONNECT) {
-                        status |= 1 << USB_PORT_FEAT_CONNECTION;
+                        status |= USB_PORT_STAT_CONNECTION;
                         /* status may be from integrated TT */
                         status |= ehci_port_speed(priv, temp);
                 }
                 if (temp & PORT_PE)
-                        status |= 1 << USB_PORT_FEAT_ENABLE;
+                        status |= USB_PORT_STAT_ENABLE;
                 if (temp & (PORT_SUSPEND|PORT_RESUME))
-                        status |= 1 << USB_PORT_FEAT_SUSPEND;
+                        status |= USB_PORT_STAT_SUSPEND;
                 if (temp & PORT_RESET)
-                        status |= 1 << USB_PORT_FEAT_RESET;
+                        status |= USB_PORT_STAT_RESET;
                 if (temp & PORT_POWER)
-                        status |= 1 << USB_PORT_FEAT_POWER;
+                        status |= USB_PORT_STAT_POWER;
 
                 put_unaligned(cpu_to_le32(status), (__le32 *) buf);
                 break;