Re: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware

[Andrew Morton]

Linus Torvalds wrote:
> 
> I'm also nervous about the complete lack of locking in vortex_timer():
> disabling interrupts doesn't mean that transmits couldn't be
> pending. But maybe the hardware is ok with changing status concurrently.
> 

mm..  It's a little racy wrt vortex_ioctl(), but otherwise OK.
del_timer_sync() in vortex_ioctl() seems to be needed.

disable_irq() is very useful in functions such as this.  It
would be a shame to have to stop using it.