linux-kernel - [lkp] [usb] 6ee844ac2e: WARNING: CPU: 0 PID: 0 at include/linux/usb/gadget.h:405 composite_ep0

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Date:	Fri, 18 Dec 2015 09:14:40 +0800
From:	kernel test robot <ying.huang@...ux.intel.com>
TO:	Du@...r.kernel.org, Changbin <changbin.du@...el.com>
CC:	0day robot <fengguang.wu@...el.com>
Subject: [lkp] [usb] 6ee844ac2e: WARNING: CPU: 0 PID: 0 at
 include/linux/usb/gadget.h:405 composite_ep0_queue+0x93/0xa4()

FYI, we noticed the below changes on

https://github.com/0day-ci/linux changbin-du-intel-com/usb-gadget-forbid-queuing-request-to-a-disabled-ep/20151217-180958
commit 6ee844ac2efe94605f8b630053739fdae8fd617c ("usb: gadget: forbid queuing request to a disabled ep")


+--------------------------------------------------------------+----------+------------+
|                                                              | v4.4-rc4 | 6ee844ac2e |
+--------------------------------------------------------------+----------+------------+
| boot_successes                                               | 42       | 0          |
| boot_failures                                                | 5        | 12         |
| IP-Config:Auto-configuration_of_network_failed               | 5        | 4          |
| WARNING:at_include/linux/usb/gadget.h:#composite_ep0_queue() | 0        | 12         |
| backtrace:cpu_startup_entry                                  | 0        | 6          |
| backtrace:power_supply_register                              | 0        | 1          |
| backtrace:test_power_init                                    | 0        | 1          |
| backtrace:kernel_init_freeable                               | 0        | 1          |
+--------------------------------------------------------------+----------+------------+



[   11.146956] usbcore: registered new interface driver i2c-diolan-u2c
[   11.148476] ------------[ cut here ]------------
[   11.148476] ------------[ cut here ]------------
[   11.148484] WARNING: CPU: 0 PID: 0 at include/linux/usb/gadget.h:405 composite_ep0_queue+0x93/0xa4()
[   11.148484] WARNING: CPU: 0 PID: 0 at include/linux/usb/gadget.h:405 composite_ep0_queue+0x93/0xa4()
[   11.148486] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.0-rc4-00001-g6ee844a #1
[   11.148486] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.0-rc4-00001-g6ee844a #1
[   11.148487] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[   11.148487] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[   11.148490]  0000000000000000 ffff880013803ca0 ffffffff813ce682 0000000000000000
[   11.148490]  0000000000000000 ffff880013803ca0 ffffffff813ce682 0000000000000000
[   11.148492]  ffff880013803cd8 ffffffff810b0757 ffffffff815f7c44 ffff8800102d8500
[   11.148492]  ffff880013803cd8 ffffffff810b0757 ffffffff815f7c44 ffff8800102d8500
[   11.148495]  ffff8800102d85e8 00000000ffffff94 0000000000000000 ffff880013803ce8
[   11.148495]  ffff8800102d85e8 00000000ffffff94 0000000000000000 ffff880013803ce8
[   11.148495] Call Trace:
[   11.148495] Call Trace:
[   11.148499]  <IRQ>  [<ffffffff813ce682>] dump_stack+0x4b/0x6c
[   11.148499]  <IRQ>  [<ffffffff813ce682>] dump_stack+0x4b/0x6c
[   11.148503]  [<ffffffff810b0757>] warn_slowpath_common+0x8a/0xa3
[   11.148503]  [<ffffffff810b0757>] warn_slowpath_common+0x8a/0xa3
[   11.148505]  [<ffffffff815f7c44>] ? composite_ep0_queue+0x93/0xa4
[   11.148505]  [<ffffffff815f7c44>] ? composite_ep0_queue+0x93/0xa4
[   11.148506]  [<ffffffff810b082e>] warn_slowpath_null+0x15/0x17
[   11.148506]  [<ffffffff810b082e>] warn_slowpath_null+0x15/0x17
[   11.148508]  [<ffffffff815f7c44>] composite_ep0_queue+0x93/0xa4
[   11.148508]  [<ffffffff815f7c44>] composite_ep0_queue+0x93/0xa4
[   11.148510]  [<ffffffff815f8b40>] composite_setup+0xeeb/0x103c
[   11.148510]  [<ffffffff815f8b40>] composite_setup+0xeeb/0x103c
[   11.148514]  [<ffffffff810e45af>] ? lock_acquire+0x99/0xa8
[   11.148514]  [<ffffffff810e45af>] ? lock_acquire+0x99/0xa8
[   11.148517]  [<ffffffff815fecf7>] ? dummy_timer+0xa17/0xa6b
[   11.148517]  [<ffffffff815fecf7>] ? dummy_timer+0xa17/0xa6b
[   11.148519]  [<ffffffff815fed10>] dummy_timer+0xa30/0xa6b
[   11.148519]  [<ffffffff815fed10>] dummy_timer+0xa30/0xa6b
[   11.148520]  [<ffffffff810e4597>] ? lock_acquire+0x81/0xa8
[   11.148520]  [<ffffffff810e4597>] ? lock_acquire+0x81/0xa8
[   11.148522]  [<ffffffff810e4597>] ? lock_acquire+0x81/0xa8
[   11.148522]  [<ffffffff810e4597>] ? lock_acquire+0x81/0xa8
[   11.148524]  [<ffffffff815fe2e0>] ? dummy_udc_probe+0x17c/0x17c
[   11.148524]  [<ffffffff815fe2e0>] ? dummy_udc_probe+0x17c/0x17c
[   11.148525]  [<ffffffff815fe2e0>] ? dummy_udc_probe+0x17c/0x17c
[   11.148525]  [<ffffffff815fe2e0>] ? dummy_udc_probe+0x17c/0x17c
[   11.148529]  [<ffffffff810fa7e6>] call_timer_fn+0x63/0xcd
[   11.148529]  [<ffffffff810fa7e6>] call_timer_fn+0x63/0xcd
[   11.148530]  [<ffffffff810fa783>] ? process_timeout+0xb/0xb
[   11.148530]  [<ffffffff810fa783>] ? process_timeout+0xb/0xb
[   11.148532]  [<ffffffff810facb2>] run_timer_softirq+0x19f/0x1c8
[   11.148532]  [<ffffffff810facb2>] run_timer_softirq+0x19f/0x1c8
[   11.148534]  [<ffffffff810b3b5b>] __do_softirq+0x106/0x22b
[   11.148534]  [<ffffffff810b3b5b>] __do_softirq+0x106/0x22b
[   11.148536]  [<ffffffff810b3eb8>] irq_exit+0x58/0xd5
[   11.148536]  [<ffffffff810b3eb8>] irq_exit+0x58/0xd5
[   11.148539]  [<ffffffff8102a169>] smp_trace_apic_timer_interrupt+0x6c/0x79
[   11.148539]  [<ffffffff8102a169>] smp_trace_apic_timer_interrupt+0x6c/0x79
[   11.148541]  [<ffffffff8102a17f>] smp_apic_timer_interrupt+0x9/0xb
[   11.148541]  [<ffffffff8102a17f>] smp_apic_timer_interrupt+0x9/0xb
[   11.148545]  [<ffffffff817d8601>] apic_timer_interrupt+0x91/0xa0
[   11.148545]  [<ffffffff817d8601>] apic_timer_interrupt+0x91/0xa0
[   11.148549]  <EOI>  [<ffffffff81031f9e>] ? native_safe_halt+0x6/0x8
[   11.148549]  <EOI>  [<ffffffff81031f9e>] ? native_safe_halt+0x6/0x8
[   11.148551]  [<ffffffff8100aae2>] default_idle+0xe/0x12
[   11.148551]  [<ffffffff8100aae2>] default_idle+0xe/0x12
[   11.148552]  [<ffffffff8100afff>] arch_cpu_idle+0xa/0xc
[   11.148552]  [<ffffffff8100afff>] arch_cpu_idle+0xa/0xc
[   11.148554]  [<ffffffff810dc2fd>] default_idle_call+0x1e/0x20
[   11.148554]  [<ffffffff810dc2fd>] default_idle_call+0x1e/0x20
[   11.148555]  [<ffffffff810dc483>] cpu_startup_entry+0x13d/0x20f
[   11.148555]  [<ffffffff810dc483>] cpu_startup_entry+0x13d/0x20f
[   11.148558]  [<ffffffff817cd90a>] rest_init+0x131/0x137
[   11.148558]  [<ffffffff817cd90a>] rest_init+0x131/0x137
[   11.148560]  [<ffffffff82094f2d>] start_kernel+0x483/0x490
[   11.148560]  [<ffffffff82094f2d>] start_kernel+0x483/0x490
[   11.148562]  [<ffffffff82094120>] ? early_idt_handler_array+0x120/0x120
[   11.148562]  [<ffffffff82094120>] ? early_idt_handler_array+0x120/0x120
[   11.148563]  [<ffffffff82094315>] x86_64_start_reservations+0x2a/0x2c
[   11.148563]  [<ffffffff82094315>] x86_64_start_reservations+0x2a/0x2c
[   11.148565]  [<ffffffff82094402>] x86_64_start_kernel+0xeb/0xf8
[   11.148565]  [<ffffffff82094402>] x86_64_start_kernel+0xeb/0xf8
[   11.148588] ---[ end trace 240f0cab842b707a ]---
[   11.148588] ---[ end trace 240f0cab842b707a ]---





Thanks,
Ying Huang

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