From 3cf1fc80655d3af7083ea4b3615e5f8532543be7 Mon Sep 17 00:00:00 2001 From: Stefan Koch Date: Sat, 8 Aug 2015 11:32:56 +0200 Subject: usb: interface authorization: Use a flag for the default device authorization With this patch a flag instead of a variable is used for the default device authorization. Signed-off-by: Stefan Koch Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hcd.c | 31 +++++++++++++++++++++---------- drivers/usb/core/usb.c | 2 +- 2 files changed, 22 insertions(+), 11 deletions(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 83df1dde9c08..86b3d1190500 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -854,10 +854,10 @@ static ssize_t authorized_default_show(struct device *dev, { struct usb_device *rh_usb_dev = to_usb_device(dev); struct usb_bus *usb_bus = rh_usb_dev->bus; - struct usb_hcd *usb_hcd; + struct usb_hcd *hcd; - usb_hcd = bus_to_hcd(usb_bus); - return snprintf(buf, PAGE_SIZE, "%u\n", usb_hcd->authorized_default); + hcd = bus_to_hcd(usb_bus); + return snprintf(buf, PAGE_SIZE, "%u\n", !!HCD_DEV_AUTHORIZED(hcd)); } static ssize_t authorized_default_store(struct device *dev, @@ -868,12 +868,16 @@ static ssize_t authorized_default_store(struct device *dev, unsigned val; struct usb_device *rh_usb_dev = to_usb_device(dev); struct usb_bus *usb_bus = rh_usb_dev->bus; - struct usb_hcd *usb_hcd; + struct usb_hcd *hcd; - usb_hcd = bus_to_hcd(usb_bus); + hcd = bus_to_hcd(usb_bus); result = sscanf(buf, "%u\n", &val); if (result == 1) { - usb_hcd->authorized_default = val ? 1 : 0; + if (val) + set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); + else + clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); + result = size; } else { result = -EINVAL; @@ -2720,10 +2724,17 @@ int usb_add_hcd(struct usb_hcd *hcd, dev_info(hcd->self.controller, "%s\n", hcd->product_desc); /* Keep old behaviour if authorized_default is not in [0, 1]. */ - if (authorized_default < 0 || authorized_default > 1) - hcd->authorized_default = hcd->wireless ? 0 : 1; - else - hcd->authorized_default = authorized_default; + if (authorized_default < 0 || authorized_default > 1) { + if (hcd->wireless) + clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); + else + set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); + } else { + if (authorized_default) + set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); + else + clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); + } set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); /* per default all interfaces are authorized */ diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 8d5b2f4113cd..f8bbd0b6d9fe 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -510,7 +510,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent, if (root_hub) /* Root hub always ok [and always wired] */ dev->authorized = 1; else { - dev->authorized = usb_hcd->authorized_default; + dev->authorized = !!HCD_DEV_AUTHORIZED(usb_hcd); dev->wusb = usb_bus_is_wusb(bus) ? 1 : 0; } return dev; -- cgit v1.2.3