Revert "usb:gadget Simplify usb_decode_get_set_descriptor function."

This reverts commit c2af6b07803ebd099950cd608f404a7bff9037b2.

It's broken.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/gadget/debug.c b/drivers/usb/gadget/debug.c
index 92a986a..60a9f70 100644 (file)
--- a/drivers/usb/gadget/debug.c
+++ b/drivers/usb/gadget/debug.c
@@ -105,65 +105,62 @@ static void usb_decode_get_set_descriptor(__u8 bRequestType, __u8 bRequest,
                                          __u16 wValue, __u16 wIndex,
                                          __u16 wLength, char *str, size_t size)
 {
-       char *s;
-
-       switch (wValue >> 8) {
-       case USB_DT_DEVICE:
-               s = "Device";
-               break;
-       case USB_DT_CONFIG:
-               s = "Configuration";
-               break;
-       case USB_DT_STRING:
-               s = "String";
-               break;
-       case USB_DT_INTERFACE:
-               s = "Interface";
-               break;
-       case USB_DT_ENDPOINT:
-               s = "Endpoint";
-               break;
-       case USB_DT_DEVICE_QUALIFIER:
-               s = "Device Qualifier";
-               break;
-       case USB_DT_OTHER_SPEED_CONFIG:
-               s = "Other Speed Config";
-               break;
-       case USB_DT_INTERFACE_POWER:
-               s = "Interface Power";
-               break;
-       case USB_DT_OTG:
-               s = "OTG";
-               break;
-       case USB_DT_DEBUG:
-               s = "Debug";
-               break;
-       case USB_DT_INTERFACE_ASSOCIATION:
-               s = "Interface Association";
-               break;
-       case USB_DT_BOS:
-               s = "BOS";
-               break;
-       case USB_DT_DEVICE_CAPABILITY:
-               s = "Device Capability";
-               break;
-       case USB_DT_PIPE_USAGE:
-               s = "Pipe Usage";
-               break;
-       case USB_DT_SS_ENDPOINT_COMP:
-               s = "SS Endpoint Companion";
-               break;
-       case USB_DT_SSP_ISOC_ENDPOINT_COMP:
-               s = "SSP Isochronous Endpoint Companion";
-               break;
-       default:
-               s = "UNKNOWN";
-               break;
-       }
-
        snprintf(str, size, "%s %s Descriptor(Index = %d, Length = %d)",
-               bRequest == USB_REQ_GET_DESCRIPTOR ? "Get" : "Set",
-               s, wValue & 0xff, wLength);
+                bRequest == USB_REQ_GET_DESCRIPTOR ? "Get" : "Set",
+                ({ char *s;
+                       switch (wValue >> 8) {
+                       case USB_DT_DEVICE:
+                               s = "Device";
+                               break;
+                       case USB_DT_CONFIG:
+                               s = "Configuration";
+                               break;
+                       case USB_DT_STRING:
+                               s = "String";
+                               break;
+                       case USB_DT_INTERFACE:
+                               s = "Interface";
+                               break;
+                       case USB_DT_ENDPOINT:
+                               s = "Endpoint";
+                               break;
+                       case USB_DT_DEVICE_QUALIFIER:
+                               s = "Device Qualifier";
+                               break;
+                       case USB_DT_OTHER_SPEED_CONFIG:
+                               s = "Other Speed Config";
+                               break;
+                       case USB_DT_INTERFACE_POWER:
+                               s = "Interface Power";
+                               break;
+                       case USB_DT_OTG:
+                               s = "OTG";
+                               break;
+                       case USB_DT_DEBUG:
+                               s = "Debug";
+                               break;
+                       case USB_DT_INTERFACE_ASSOCIATION:
+                               s = "Interface Association";
+                               break;
+                       case USB_DT_BOS:
+                               s = "BOS";
+                               break;
+                       case USB_DT_DEVICE_CAPABILITY:
+                               s = "Device Capability";
+                               break;
+                       case USB_DT_PIPE_USAGE:
+                               s = "Pipe Usage";
+                               break;
+                       case USB_DT_SS_ENDPOINT_COMP:
+                               s = "SS Endpoint Companion";
+                               break;
+                       case USB_DT_SSP_ISOC_ENDPOINT_COMP:
+                               s = "SSP Isochronous Endpoint Companion";
+                               break;
+                       default:
+                               s = "UNKNOWN";
+                               break;
+                       } s; }), wValue & 0xff, wLength);
 }
 
 static void usb_decode_get_configuration(__u16 wLength, char *str, size_t size)