usb: gadget: Provide a default implementation of default manufacturer string

Some gadgets provide custom entry here. Some may override it with an
etntry that is also created by composite if there was no value sumbitted
at all.
This patch removes all "custom manufacturer" strings which are the same
as these which are created by composite. Then it moves the creation of
the default manufacturer string to usb_composite_overwrite_options() in
case no command line argument has been used and the entry is still an
empty string.
By doing this we get rid of the global variable "composite_manufacturer"
in composite.

Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 1 insertions, 11 deletions

diff --git a/drivers/usb/gadget/ncm.c b/drivers/usb/gadget/ncm.c
index 1a26452ce4ca..343f3d364ef8 100644
--- a/drivers/usb/gadget/ncm.c
+++ b/drivers/usb/gadget/ncm.c
@@ -20,8 +20,6 @@
 /* #define VERBOSE_DEBUG */
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
-
 
 #include "u_ether.h"
 
@@ -95,12 +93,9 @@ static const struct usb_descriptor_header *otg_desc[] = {
         NULL,
 };
 
-
 /* string IDs are assigned dynamically */
-static char manufacturer[50];
-
 static struct usb_string strings_dev[] = {
-        [USB_GADGET_MANUFACTURER_IDX].s = manufacturer,
+        [USB_GADGET_MANUFACTURER_IDX].s = "",
         [USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC,
         [USB_GADGET_SERIAL_IDX].s = "",
         {  } /* end of list */
@@ -169,15 +164,10 @@ static int __init gncm_bind(struct usb_composite_dev *cdev)
                         cpu_to_le16(0x0300 | 0x0099);
         }
 
-
         /* Allocate string descriptor numbers ... note that string
          * contents can be overridden by the composite_dev glue.
          */
 
-        /* device descriptor strings: manufacturer, product */
-        snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
-                init_utsname()->sysname, init_utsname()->release,
-                gadget->name);
         status = usb_string_ids_tab(cdev, strings_dev);
         if (status < 0)
                 goto fail;