From 37e8273cd30592d3a82bcb70cbb1bdc4eaeb6b71 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Wed, 4 Nov 2009 15:29:52 +0000 Subject: usbnet: Set link down initially for drivers that update link state Some usbnet drivers update link state while others do not due to hardware limitations. Add a flag to distinguish those that do, and set the link down initially for their devices. This is intended to fix this bug: http://bugs.debian.org/444043 Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/usb/asix.c | 12 ++++++------ drivers/net/usb/cdc_ether.c | 2 +- drivers/net/usb/dm9601.c | 2 +- drivers/net/usb/usbnet.c | 4 +++- include/linux/usb/usbnet.h | 1 + 5 files changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c index 6ce7f775bb74..1bef39a60a62 100644 --- a/drivers/net/usb/asix.c +++ b/drivers/net/usb/asix.c @@ -1327,7 +1327,7 @@ static const struct driver_info ax8817x_info = { .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x00130103, }; @@ -1337,7 +1337,7 @@ static const struct driver_info dlink_dub_e100_info = { .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x009f9d9f, }; @@ -1347,7 +1347,7 @@ static const struct driver_info netgear_fa120_info = { .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x00130103, }; @@ -1357,7 +1357,7 @@ static const struct driver_info hawking_uf200_info = { .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x001f1d1f, }; @@ -1367,7 +1367,7 @@ static const struct driver_info ax88772_info = { .status = asix_status, .link_reset = ax88772_link_reset, .reset = ax88772_link_reset, - .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR, .rx_fixup = asix_rx_fixup, .tx_fixup = asix_tx_fixup, }; @@ -1378,7 +1378,7 @@ static const struct driver_info ax88178_info = { .status = asix_status, .link_reset = ax88178_link_reset, .reset = ax88178_link_reset, - .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR, .rx_fixup = asix_rx_fixup, .tx_fixup = asix_tx_fixup, }; diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 71d7ff3de99f..7ec24c9b2535 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -413,7 +413,7 @@ static int cdc_bind(struct usbnet *dev, struct usb_interface *intf) static const struct driver_info cdc_info = { .description = "CDC Ethernet Device", - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, // .check_connect = cdc_check_connect, .bind = cdc_bind, .unbind = usbnet_cdc_unbind, diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c index a2b30a10064f..3d406f9b2f29 100644 --- a/drivers/net/usb/dm9601.c +++ b/drivers/net/usb/dm9601.c @@ -611,7 +611,7 @@ static int dm9601_link_reset(struct usbnet *dev) static const struct driver_info dm9601_info = { .description = "Davicom DM9601 USB Ethernet", - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, .bind = dm9601_bind, .rx_fixup = dm9601_rx_fixup, .tx_fixup = dm9601_tx_fixup, diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 378da8c938fe..04f3f289e87c 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1352,9 +1352,11 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) // ok, it's ready to go. usb_set_intfdata (udev, dev); - // start as if the link is up netif_device_attach (net); + if (dev->driver_info->flags & FLAG_LINK_INTR) + netif_carrier_off(net); + return 0; out3: diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h index 86c31b753266..8c84881f8478 100644 --- a/include/linux/usb/usbnet.h +++ b/include/linux/usb/usbnet.h @@ -92,6 +92,7 @@ struct driver_info { #define FLAG_SEND_ZLP 0x0200 /* hw requires ZLPs are sent */ #define FLAG_WWAN 0x0400 /* use "wwan%d" names */ +#define FLAG_LINK_INTR 0x0800 /* updates link (carrier) status */ /* init device ... can sleep, or cause probe() failure */ int (*bind)(struct usbnet *, struct usb_interface *); -- cgit v1.2.2