Merge tag 'usb-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull usb/phy/extcon updates from Greg KH:
 "Here is the big USB, and PHY, and extcon, patchsets for 4.9-rc1.

  Full details are in the shortlog, but generally a lot of new hardware
  support, usb gadget updates, and Wolfram's great cleanup of USB error
  message handling, making the kernel image a tad bit smaller.

  All of this has been in linux-next with no reported issues"

* tag 'usb-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (343 commits)
  Revert "usbtmc: convert to devm_kzalloc"
  USB: serial: cp210x: Add ID for a Juniper console
  usb: Kconfig: using select for USB_COMMON dependency
  bluetooth: bcm203x: don't print error when allocating urb fails
  mmc: host: vub300: don't print error when allocating urb fails
  usb: hub: change CLEAR_FEATURE to SET_FEATURE
  usb: core: Introduce a USB port LED trigger
  USB: bcma: drop Northstar PHY 2.0 initialization code
  usb: core: hcd: add missing header dependencies
  usb: musb: da8xx: fix error handling message in probe
  usb: musb: Fix session based PM for first invalid VBUS
  usb: musb: Fix PM runtime for disconnect after unconfigure
  musb: Export musb_root_disconnect for use in modules
  usb: misc: legousbtower: Fix NULL pointer deference
  cdc-acm: hardening against malicious devices
  Revert "usb: gadget: NCM: Protect dev->port_usb using dev->lock"
  include: extcon: Fix compilation error caused because of incomplete merge
  MAINTAINERS: add tree entry for USB Serial
  phy-twl4030-usb: initialize charging-related stuff via pm_runtime
  phy-twl4030-usb: better handle musb_mailbox() failure
  ...

1 files changed, 22 insertions, 6 deletions

diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index 2505117e88e8..8f3659b65f53 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -311,11 +311,7 @@ struct fsg_common {
 	/* Gadget's private data. */
 	void			*private_data;
 
-	/*
-	 * Vendor (8 chars), product (16 chars), release (4
-	 * hexadecimal digits) and NUL byte
-	 */
-	char inquiry_string[8 + 16 + 4 + 1];
+	char inquiry_string[INQUIRY_STRING_LEN];
 
 	struct kref		ref;
 };
@@ -1107,7 +1103,12 @@ static int do_inquiry(struct fsg_common *common, struct fsg_buffhd *bh)
 	buf[5] = 0;		/* No special options */
 	buf[6] = 0;
 	buf[7] = 0;
-	memcpy(buf + 8, common->inquiry_string, sizeof common->inquiry_string);
+	if (curlun->inquiry_string[0])
+		memcpy(buf + 8, curlun->inquiry_string,
+		       sizeof(curlun->inquiry_string));
+	else
+		memcpy(buf + 8, common->inquiry_string,
+		       sizeof(common->inquiry_string));
 	return 36;
 }
 
@@ -3209,12 +3210,27 @@ static ssize_t fsg_lun_opts_nofua_store(struct config_item *item,
 
 CONFIGFS_ATTR(fsg_lun_opts_, nofua);
 
+static ssize_t fsg_lun_opts_inquiry_string_show(struct config_item *item,
+						char *page)
+{
+	return fsg_show_inquiry_string(to_fsg_lun_opts(item)->lun, page);
+}
+
+static ssize_t fsg_lun_opts_inquiry_string_store(struct config_item *item,
+						 const char *page, size_t len)
+{
+	return fsg_store_inquiry_string(to_fsg_lun_opts(item)->lun, page, len);
+}
+
+CONFIGFS_ATTR(fsg_lun_opts_, inquiry_string);
+
 static struct configfs_attribute *fsg_lun_attrs[] = {
 	&fsg_lun_opts_attr_file,
 	&fsg_lun_opts_attr_ro,
 	&fsg_lun_opts_attr_removable,
 	&fsg_lun_opts_attr_cdrom,
 	&fsg_lun_opts_attr_nofua,
+	&fsg_lun_opts_attr_inquiry_string,
 	NULL,
 };