linux-kernel - Re: [PATCH v1 3/6] driver: Google EFI SMI

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Date:	Thu, 27 Jan 2011 11:22:55 -0800
From:	Mike Waychison <mikew@...gle.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Greg KH <greg@...ah.com>, torvalds@...ux-foundation.org,
	San Mehat <san@...gle.com>, Aaron Durbin <adurbin@...gle.com>,
	Duncan Laurie <dlaurie@...gle.com>,
	linux-kernel@...r.kernel.org, Tim Hockin <thockin@...gle.com>
Subject: Re: [PATCH v1 3/6] driver: Google EFI SMI

On Thu, Jan 27, 2011 at 2:43 AM, Alan Cox <alan@...rguk.ukuu.org.uk> wrote:
>> I understand that type widths change in a compat setting.  So what?
>> Code in each environment is written to it's own namespace anyhow.
>
> So you ned up with a pile of extra crap in the kernel to handle 32bit
> userspace on 64bit and the like. If instead the structs are carefully
> laid out this doesn't occur.
>
>> Here's what *I* think *you* think about __u32 vs u32 vs uint32_t.
>> Correct me if I'm totally off-base here:
>
> And the __aligned_ ones for things like u64 in ioctls and structs...
>
> It's also a style and consistency thing, its trivialto use the same style
> as the rest of the kernel, it's trivial to tweak and it helps keep
> coherency of style, even if you are sitting at the keyboard mumbling
> "bunch of morons if you ask me" while doing it ;)

I'm always mumbling and cursing at my desk :p

I've already changed the series to not use C99 types.  I understand
the value in style consistency :)

I'm still trying to understand if there is any actual technical merit
to avoid standard types though, of which there doesn't seem to be any.

Anyhow, I've attached a patch that fixes the style documentation.

Download attachment "patch" of type "application/octet-stream" (788 bytes)