Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> --- drivers/usb/gadget/Kconfig | 1 + drivers/usb/gadget/ether.c | 54 +++++++++++++++++++++++++------------------ 2 files changed, 32 insertions(+), 23 deletions(-) diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index a4a6416..a33a307 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -812,6 +812,7 @@ config USB_ETH_RNDIS bool "RNDIS support" depends on USB_ETH select USB_LIBCOMPOSITE + select USB_F_RNDIS default y help Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol, diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index 4d7290a..71fc52f 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -94,23 +94,12 @@ static inline bool has_rndis(void) #include <linux/module.h> -/*-------------------------------------------------------------------------*/ - -/* - * Kbuild is not very cooperative with respect to linking separately - * compiled library objects into one module. So for now we won't use - * separate compilation ... ensuring init/exit sections work to shrink - * the runtime footprint, and giving us at least some parts of what - * a "gcc --combine ... part1.c part2.c part3.c ... " build would. - */ #include "u_ecm.h" #include "u_gether.h" #ifdef USB_ETH_RNDIS -#define USB_FRNDIS_INCLUDED -#include "f_rndis.c" +#include "u_rndis.h" #include "rndis.h" #endif - #include "u_eem.h" /*-------------------------------------------------------------------------*/ @@ -212,9 +201,6 @@ static struct usb_gadget_strings *dev_strings[] = { NULL, }; -static u8 host_mac[ETH_ALEN]; -static struct eth_dev *the_dev; - static struct usb_function_instance *fi_ecm; static struct usb_function *f_ecm; @@ -224,6 +210,9 @@ static struct usb_function *f_eem; static struct usb_function_instance *fi_geth; static struct usb_function *f_geth; +static struct usb_function_instance *fi_rndis; +static struct usb_function *f_rndis; + /*-------------------------------------------------------------------------*/ /* @@ -233,6 +222,8 @@ static struct usb_function *f_geth; */ static int __init rndis_do_config(struct usb_configuration *c) { + int status; + /* FIXME alloc iConfiguration string, set it in c->strings */ if (gadget_is_otg(c->cdev->gadget)) { @@ -240,7 +231,15 @@ static int __init rndis_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - return rndis_bind_config(c, host_mac, the_dev); + f_rndis = usb_get_function(fi_rndis); + if (IS_ERR(f_rndis)) + return PTR_ERR(f_rndis); + + status = usb_add_function(c, f_rndis); + if (status < 0) + usb_put_function(f_rndis); + + return status; } static struct usb_configuration rndis_config_driver = { @@ -336,7 +335,6 @@ static int __init eth_bind(struct usb_composite_dev *cdev) eem_opts = container_of(fi_eem, struct f_eem_opts, func_inst); net = eem_opts->net; - the_dev = netdev_priv(net); eth_config_driver.label = "CDC Ethernet (EEM)"; device_desc.idVendor = cpu_to_le16(EEM_VENDOR_NUM); @@ -351,7 +349,6 @@ static int __init eth_bind(struct usb_composite_dev *cdev) ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst); net = ecm_opts->net; - the_dev = netdev_priv(net); eth_config_driver.label = "CDC Ethernet (ECM)"; } else { @@ -365,7 +362,6 @@ static int __init eth_bind(struct usb_composite_dev *cdev) func_inst); net = geth_opts->net; - the_dev = netdev_priv(net); eth_config_driver.label = "CDC Subset/SAFE"; @@ -387,7 +383,6 @@ static int __init eth_bind(struct usb_composite_dev *cdev) status = gether_register_netdev(net); if (status) goto fail; - gether_get_host_addr_u8(net, host_mac); if (use_eem) eem_opts->bound = true; @@ -396,6 +391,14 @@ static int __init eth_bind(struct usb_composite_dev *cdev) else geth_opts->bound = true; + fi_rndis = usb_get_function_instance("rndis"); + if (IS_ERR(fi_rndis)) { + status = PTR_ERR(fi_rndis); + goto fail; + } + + rndis_borrow_net(fi_rndis, net); + device_desc.idVendor = cpu_to_le16(RNDIS_VENDOR_NUM); device_desc.idProduct = cpu_to_le16(RNDIS_PRODUCT_NUM); device_desc.bNumConfigurations = 2; @@ -407,7 +410,7 @@ static int __init eth_bind(struct usb_composite_dev *cdev) status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) - goto fail; + goto fail1; device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; @@ -416,12 +419,12 @@ static int __init eth_bind(struct usb_composite_dev *cdev) status = usb_add_config(cdev, &rndis_config_driver, rndis_do_config); if (status < 0) - goto fail; + goto fail1; } status = usb_add_config(cdev, ð_config_driver, eth_do_config); if (status < 0) - goto fail; + goto fail1; usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n", @@ -429,6 +432,9 @@ static int __init eth_bind(struct usb_composite_dev *cdev) return 0; +fail1: + if (has_rndis()) + usb_put_function_instance(fi_rndis); fail: if (use_eem) usb_put_function_instance(fi_eem); @@ -441,6 +447,8 @@ fail: static int __exit eth_unbind(struct usb_composite_dev *cdev) { + if (has_rndis()) + usb_put_function_instance(fi_rndis); if (use_eem) usb_put_function_instance(fi_eem); else if (can_support_ecm(cdev->gadget)) -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html