Re: [PATCH] qlcnic: Fix a sleep-in-atomic bug in qlcnic_82xx_hw_write_wx_2M and qlcnic_82xx_hw_read_wx_2M

2017-06-01 Thread David Miller
From: Jia-Ju Bai Date: Thu, 1 Jun 2017 16:18:10 +0800 > The driver may sleep under a write spin lock, and the function > call path is: > qlcnic_82xx_hw_write_wx_2M (acquire the lock by write_lock_irqsave) > crb_win_lock > qlcnic_pcie_sem_lock > usleep_range >

[PATCH] qlcnic: Fix a sleep-in-atomic bug in qlcnic_82xx_hw_write_wx_2M and qlcnic_82xx_hw_read_wx_2M

2017-06-01 Thread Jia-Ju Bai
The driver may sleep under a write spin lock, and the function call path is: qlcnic_82xx_hw_write_wx_2M (acquire the lock by write_lock_irqsave) crb_win_lock qlcnic_pcie_sem_lock usleep_range qlcnic_82xx_hw_read_wx_2M (acquire the lock by write_lock_irqsave) crb_win_lock