Re: [Xen-devel] [PATCH 09/10] xen/swiotlb: Fix compile warnings when using plain integer instead of NULL pointer.

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Ian Jackson writes ("Re: [Xen-devel] [PATCH 09/10] xen/swiotlb: Fix compile 
warnings when using plain integer instead of NULL pointer."):
> Oh wait this is Linux kernel code, not in Xen?  Still,
> Documentation/CodingStyle doesn't say that NULL is required.

Someone on irc found me this rant from Linus:
  https://lkml.org/lkml/2004/7/8/7
That suggests that perhaps someone should patch CodingStyle to
document this style requirement.

That someone shouldn't be me because I don't agree with the
requirement and a rationale I'd write for it would come out sounding
sarcastic.

Ian.

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