Re: Requirements for a shutdown function?

[Timur Tabi <timur@codeaurora.org>]

On 05/10/2017 04:47 PM, Florian Fainelli wrote:
> AFAIR kexec takes care of shutting down network devices explicitly
> (unless instructed otherwise with -x/--no-ifdown) so this may be where
> this is coming from.
> 
> Reading through drivers/base/core.c it does not appear that ->remove()
> is called and then ->shutdown() gets called, only ->shutdown() gets
> called from device_shutdown() called from kernel/reboot.c. It seems to
> me like if you want to be on the safe side you would want to implement a
> shutdown function that is identical to what your remove function does.

I finally found a testcase where the shutdown function is useful.  If you do
a "reboot -f", it will call shutdown but not close.

-- 
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm
Technologies, Inc.  Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.