linux-kernel - Re: [PATCH 00/29] x86/boot/e820: Assorted E820 table handling features and cleanups

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Message-Id: <f647bbd0-254f-42b7-be2a-54ddfa5679db@app.fastmail.com>
Date: Tue, 22 Apr 2025 08:58:32 +0200
From: "Arnd Bergmann" <arnd@...nel.org>
To: "Ingo Molnar" <mingo@...nel.org>, linux-kernel@...r.kernel.org
Cc: "Andy Shevchenko" <andy@...nel.org>, "Borislav Petkov" <bp@...en8.de>,
 "Juergen Gross" <jgross@...e.com>, "H. Peter Anvin" <hpa@...or.com>,
 "Kees Cook" <keescook@...omium.org>,
 "Linus Torvalds" <torvalds@...ux-foundation.org>,
 "Mike Rapoport" <rppt@...nel.org>, "Paul Menzel" <pmenzel@...gen.mpg.de>,
 "Peter Zijlstra" <peterz@...radead.org>,
 "Thomas Gleixner" <tglx@...utronix.de>
Subject: Re: [PATCH 00/29] x86/boot/e820: Assorted E820 table handling features and
 cleanups

On Mon, Apr 21, 2025, at 20:51, Ingo Molnar wrote:
>
>  - Assorted cleanups: type cleanups, simplifications, standardization
>    of coding patterns, etc.

Since you are already looking at cleaning up the types and testing
a lot, I wonder if you could make sure this also works for a 32-bit
phys_addr_t when booting a 32-bit kernel with and without
CONFIG_X86_PAE. In my recent cleanup series I originally
changed phys_addr_t to 32 bit after removing CONFIG_HIGHMEM_64G,
but this caused regressions, so it's still left as u64 even
though it should not be needed any more.

     Arnd