Re: [PATCH v3] hyperv: simplify and rename generate_guest_id

[Olaf Hering]

Sat, 24 Sep 2022 05:31:34 +0000 "Michael Kelley (LINUX)" <mikelley@xxxxxxxxxxxxx>:

> From: Olaf Hering <olaf@xxxxxxxxx> Sent: Friday, September 23, 2022 2:09 PM

> > A very long time ago I removed most usage of version.h AFAIR,
> Could you elaborate?

It is the cost of 'make LOCALVERSION=x' vs. 'make LOCALVERSION=y'.

Too many drivers will be recompiled for no good reason as of today.
I claim no consumer below drivers/ and sound/ has a valid usecase for version.h.
But, someone else has to take the energy and argue them out of the tree.

With the proposed change every consumer of asm-generic/mshyperv.h will be dirty,
see 'touch include/asm-generic/mshyperv.h' for the impact. Therefore I think
only the two existing c files should include this header, in case the provided
information has a true value for the consumer.


Olaf

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