From: Thomas Gleixner <redacted>
Date: Tue, 29 Sep 2020 22:25:09 +0200

in the discussion about preempt count consistency accross kernel configurations:

  https://lore.kernel.org/r/20200914204209.256266093@linutronix.de/ (local)

Linus clearly requested that code in drivers and libraries which changes
behaviour based on execution context should either be split up so that
e.g. task context invocations and BH invocations have different interfaces
or if that's not possible the context information has to be provided by the
caller which knows in which context it is executing.

This includes conditional locking, allocation mode (GFP_*) decisions and
avoidance of code paths which might sleep.

In the long run, usage of 'preemptible, in_*irq etc.' should be banned from
driver code completely.

This is the second version of the first batch of related changes. V1 can be
found here:

     https://lore.kernel.org/r/20200927194846.045411263@linutronix.de (local)

 ...

Series applied to net-next, thanks.