On Tue, 2015-06-30 at 20:16 +0000, Fujinaka, Todd wrote:
> Sorry for the top-posting, but I'm provided with the tools they give me
> and bottom posting from Outlook just confuses email threads. Plus, this
> was crossposted all over creation and cc-ed to anyone with an intel
> address.

Not quite.  It was posted to the names listed under the
MAINTAINERS entry.

INTEL ETHERNET DRIVERS
M:      Jeff Kirsher <[email protected]>
R:      Jesse Brandeburg <[email protected]>
R:      Shannon Nelson <[email protected]>
R:      Carolyn Wyborny <[email protected]>
R:      Don Skidmore <[email protected]>
R:      Matthew Vick <[email protected]>
R:      John Ronciak <[email protected]>
R:      Mitch Williams <[email protected]>
L:      [email protected]

btw: You aren't listed there Todd.  Should you be?

> I still would say no if I'm allowed, because to guarantee that this
> change - that I don't think fixes anything

Simplicity for the reader is generally a good thing.
Removing the macros altogether is likely better.

>  - works in all cases, we
> need to do an incredible amount of regression testing.

Compilers should not produce different object code.
Verification of no object changes should be good enough.

> Every variant of
> every Intel part that uses this driver (and there are many) should be
> tested and will end up being used by the community.
> 
> Plus, you have no idea the number of obscure bugs I have to deal with
> as the guy answering customer questions. If this triggers some odd
> embedded compiler bug, I'm going to have to dig it out. Unless there is
> an actual bug, I'd like to leave it as it is.

If any compiler miscompiles the ARRAY_SIZE macro, there are bound to
be real issues with using that compiler in a production environment.


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