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Re: [PATCH] x86/head64: use pointer type in sizeof

From Ingo Molnar <mingo@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH] x86/head64: use pointer type in sizeof
Date 2016-02-09 15:00 +0100
Message-ID <r0gZL-4N6-55@gated-at.bofh.it> (permalink)
References <r0gQ2-4IO-13@gated-at.bofh.it>
Organization linux.* mail to news gateway

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* Alexander Kuleshov <kuleshovmail@gmail.com> wrote:

> We changed loops with memset in the 5e9ebbd87a99 commit (x86/boot:
> Micro-optimize reset_early_page_tables()). The base for size of
> memset was size of pud_p/pmd_p, but the they are actually
> represented as pointers, although they have the same sizes.

That's rather confused. Also the title is confused:

  x86/head64: use pointer type in sizeof

what the fix does it to _not_ use a pointer type.

I fixed the title and the changelog, but you really need to be more careful...

Thanks,

	Ingo

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Thread

[PATCH] x86/head64: use pointer type in sizeof Alexander Kuleshov <kuleshovmail@gmail.com> - 2016-02-09 14:50 +0100
  Re: [PATCH] x86/head64: use pointer type in sizeof Ingo Molnar <mingo@kernel.org> - 2016-02-09 15:00 +0100
  [tip:x86/boot] x86/boot: Use proper array element type in memset(  ) size calculation tip-bot for Alexander Kuleshov <tipbot@zytor.com> - 2016-02-09 17:20 +0100

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