[RFC][PATCH] Allow change timing values to wait slow devices bring up before try register an interface to IP-Config (used on some drivers using Multi-purpose USB Networking Framework)

[Tiago Maluta]

I'd like to know if this patch could be considered an general use or
an particular case.

--tm

Signed-off-by: Tiago Maluta <mal...@unifei.edu.br>
---
 drivers/net/usb/Kconfig |   17 +++++++++++++++++
 net/ipv4/ipconfig.c     |    4 ++--
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 32d9356..5b84e57 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -127,6 +127,23 @@ config USB_USBNET
          To compile this driver as a module, choose M here: the
          module will be called usbnet.

+
+config USB_USBNETDEVICE_DELAY_PRE
+       int "Define the friendly delay before opening net devices "
+       depends on USB_USBNET
+       default 500
+       help
+           Some devices may not work due to a delay from hardware bring the 
interface
+           up. This value added a delay before search and register the 
interface.
+
+config USB_USBNETDEVICE_DELAY_POST
+       int "Define the friendly delay after opening net devices "
+       depends on USB_USBNET
+       default 1
+       help
+           Some devices may not work due to a delay from hardware bring the 
interface
+           up. This value added a delay before search and register the 
interface.
+
 config USB_NET_AX8817X
        tristate "ASIX AX88xxx Based USB 2.0 Ethernet Adapters"
        depends on USB_USBNET
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 10a6a60..3faac07 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -86,8 +86,8 @@
 #endif

 /* Define the friendly delay before and after opening net devices */
-#define CONF_PRE_OPEN          500     /* Before opening: 1/2 second */
-#define CONF_POST_OPEN         1       /* After opening: 1 second */
+#define CONF_PRE_OPEN          CONFIG_USB_USBNETDEVICE_DELAY_PRE       /* 
Before
opening. Default 1/2 second */
+#define CONF_POST_OPEN         CONFIG_USB_USBNETDEVICE_DELAY_POST      /* After
opening. Default 1 second */

 /* Define the timeout for waiting for a DHCP/BOOTP/RARP reply */
 #define CONF_OPEN_RETRIES      2       /* (Re)open devices twice */
-- 
1.6.4.2
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