USB: gadget: file_storage: serial parameter even if not test mode

Moved the serial parameter handling code out of "#ifdef
CONFIG_USB_FILE_STORAGE_TEST".

This modifies Yann Cantin's commit "USB: Add a serial number
parameter to g_file_storage" module as per Alan Stern's request.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Anand Gadiyar <gadiyar@ti.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Yann Cantin <yann.cantin@laposte.net>

diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index 88e5ad2..a857b7a 100644 (file)
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -321,7 +321,7 @@ static struct {
        unsigned short  vendor;
        unsigned short  product;
        unsigned short  release;
-       char            *serial_parm;
+       char            *serial;
        unsigned int    buflen;
 
        int             transport_type;
@@ -365,6 +365,8 @@ MODULE_PARM_DESC(stall, "false to prevent bulk stalls");
 module_param_named(cdrom, mod_data.cdrom, bool, S_IRUGO);
 MODULE_PARM_DESC(cdrom, "true to emulate cdrom instead of disk");
 
+module_param_named(serial, mod_data.serial, charp, S_IRUGO);
+MODULE_PARM_DESC(serial, "USB serial number");
 
 /* In the non-TEST version, only the module parameters listed above
  * are available. */
@@ -386,9 +388,6 @@ MODULE_PARM_DESC(product, "USB Product ID");
 module_param_named(release, mod_data.release, ushort, S_IRUGO);
 MODULE_PARM_DESC(release, "USB release number");
 
-module_param_named(serial, mod_data.serial_parm, charp, S_IRUGO);
-MODULE_PARM_DESC(serial, "USB serial number");
-
 module_param_named(buflen, mod_data.buflen, uint, S_IRUGO);
 MODULE_PARM_DESC(buflen, "I/O buffer size");
 
@@ -3291,10 +3290,12 @@ static int __init check_parameters(struct fsg_dev *fsg)
                return -ETOOSMALL;
        }
 
+#endif /* CONFIG_USB_FILE_STORAGE_TEST */
+
        /* Serial string handling.
         * On a real device, the serial string would be loaded
         * from permanent storage. */
-       if (mod_data.serial_parm) {
+       if (mod_data.serial) {
                const char *ch;
                unsigned len = 0;
 
@@ -3303,7 +3304,7 @@ static int __init check_parameters(struct fsg_dev *fsg)
                 * 12 uppercase hexadecimal characters.
                 * BBB need at least 12 uppercase hexadecimal characters,
                 * with a maximum of 126. */
-               for (ch = mod_data.serial_parm; *ch; ++ch) {
+               for (ch = mod_data.serial; *ch; ++ch) {
                        ++len;
                        if ((*ch < '0' || *ch > '9') &&
                            (*ch < 'A' || *ch > 'F')) { /* not uppercase hex */
@@ -3322,8 +3323,11 @@ static int __init check_parameters(struct fsg_dev *fsg)
                                "Failing back to default\n");
                        goto fill_serial;
                }
-               fsg_strings[FSG_STRING_SERIAL - 1].s = mod_data.serial_parm;
+               fsg_strings[FSG_STRING_SERIAL - 1].s = mod_data.serial;
        } else {
+               WARNING(fsg,
+                       "Userspace failed to provide serial number; "
+                       "Failing back to default\n");
 fill_serial:
                /* Serial number not specified or invalid, make our own.
                 * We just encode it from the driver version string,
@@ -3339,8 +3343,6 @@ fill_serial:
                }
        }
 
-#endif /* CONFIG_USB_FILE_STORAGE_TEST */
-
        return 0;
 }