linux

History

Shuah Khan 918b8ac55b usbip: fix warning in vhci_hcd_probe/lockdep_init_map vhci_hcd calls sysfs_create_group() with dynamically allocated sysfs attributes triggering the lock-class key not persistent warning. Call sysfs_attr_init() for dynamically allocated sysfs attributes to fix it. vhci_hcd vhci_hcd: USB/IP Virtual Host Controller vhci_hcd vhci_hcd: new USB bus registered, assigned bus number 2 BUG: key ffff88006a7e8d18 not in .data! ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:3131 lockdep_init_map+0x60c/0x770 DEBUG_LOCKS_WARN_ON(1)[ 1.567044] Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-rc7+ #58 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 ffff88006bce6eb8 ffffffff81f96c8a ffffffff00000a02 1ffff1000d79cd6a ffffed000d79cd62 000000046bce6ed8 0000000041b58ab3 ffffffff8598af40 ffffffff81f969f8 0000000000000000 0000000041b58ab3 0000000000000200 Call Trace: [< inline >] __dump_stack lib/dump_stack.c:15 [<ffffffff81f96c8a>] dump_stack+0x292/0x398 lib/dump_stack.c:51 [<ffffffff812b808f>] __warn+0x19f/0x1e0 kernel/panic.c:550 [<ffffffff812b8195>] warn_slowpath_fmt+0xc5/0x110 kernel/panic.c:565 [<ffffffff813f3efc>] lockdep_init_map+0x60c/0x770 kernel/locking/lockdep.c:3131 [<ffffffff819e43d4>] __kernfs_create_file+0x114/0x2a0 fs/kernfs/file.c:954 [<ffffffff819e68f5>] sysfs_add_file_mode_ns+0x225/0x520 fs/sysfs/file.c:305 [< inline >] create_files fs/sysfs/group.c:64 [<ffffffff819e8a89>] internal_create_group+0x239/0x8f0 fs/sysfs/group.c:134 [<ffffffff819e915f>] sysfs_create_group+0x1f/0x30 fs/sysfs/group.c:156 [<ffffffff8323de24>] vhci_start+0x5b4/0x7a0 drivers/usb/usbip/vhci_hcd.c:978 [<ffffffff82c907ca>] usb_add_hcd+0x8da/0x1c60 drivers/usb/core/hcd.c:2867 [<ffffffff8323bc57>] vhci_hcd_probe+0x97/0x130 drivers/usb/usbip/vhci_hcd.c:1103 --- --- ---[ end trace c33c7b202cf3aac8 ]--- Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Reported-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-12-06 08:37:41 +01:00
..
Kconfig	usb: Kconfig: using select for USB_COMMON dependency	2016-09-27 12:20:17 +02:00
Makefile	usbip: vudc: Add vudc to Kconfig	2016-04-26 15:19:50 -07:00
README
stub_dev.c	usbip: fix NULL pointer dereference on errors	2016-04-28 12:28:08 -07:00
stub_main.c
stub_rx.c	usb: usbip: stub_rx: don't print error when allocating urb fails	2016-08-15 15:54:27 +02:00
stub_tx.c	usbip: safe completion against unbind operation	2016-04-28 12:28:08 -07:00
stub.h	usbip: fix NULL pointer dereference on errors	2016-04-28 12:28:08 -07:00
usbip_common.c	usbip: vudc: Make usbip_common vudc-aware	2016-04-26 15:19:50 -07:00
usbip_common.h	usbip: don't call stub_device_reset() during stub_disconnect()	2016-06-07 22:18:39 -07:00
usbip_event.c	usbip: event handler as one thread	2016-04-19 04:33:15 +09:00
vhci_hcd.c	usbip: fix possibility of dereference by NULLL pointer in vhci_hcd.c	2016-11-07 10:19:49 +01:00
vhci_rx.c	usbip: vhci extension: modifications to vhci driver	2016-08-09 16:21:05 +02:00
vhci_sysfs.c	usbip: fix warning in vhci_hcd_probe/lockdep_init_map	2016-12-06 08:37:41 +01:00
vhci_tx.c	usb: usbip: Fix possible deadlocks reported by lockdep	2016-02-03 13:52:10 -08:00
vhci.h	usbip: vhci extension: modifications to vhci driver	2016-08-09 16:21:05 +02:00
vudc_dev.c	usbip: vudc: Refactor init_vudc_hw() to be more obvious	2016-12-05 15:08:45 +01:00
vudc_main.c	usbip: vudc: Add VUDC main file	2016-04-26 15:19:50 -07:00
vudc_rx.c	usb: usbip: vudc: fix left shift overflow	2016-08-30 22:28:52 +02:00
vudc_sysfs.c	usb: usbip: remove null check	2016-06-07 22:18:39 -07:00
vudc_transfer.c	usbip: vudc: fix: Clear already_seen flag also for ep0	2016-12-05 15:08:45 +01:00
vudc_tx.c	usbip: vudc: Add vudc_tx	2016-04-26 15:19:50 -07:00
vudc.h	usb: usbip: vudc: Rename find_endpoint() to vudc_find_endpoint()	2016-04-28 12:28:08 -07:00

README

TODO:
	- more discussion about the protocol
	- testing
	- review of the userspace interface
	- document the protocol

Please send patches for this code to Greg Kroah-Hartman <greg@kroah.com>