Re: [PATCH] usb: dwc3: gadget: Fix BUG in RT config

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 21 Sep 2015 15:48:53 -0400 (EDT)
Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:

> It should say something more along the lines of:
> 
> 	Top-half handlers for threaded interrupts are not supposed to 
> 	acquire any locks.  None are needed because the top half is 
> 	guaranteed to be mutually exclusive with the bottom-half 
> 	thread handler.  Furthermore, spin_lock() in a top-half handler
> 	causes a BUG() in RT-enabled kernels.
> 
> 	Remove the unnecessary spin_lock() in dwc3_interrupt().

Ack!

-- Steve

> 
> Alan Stern

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux