linux-kernel - Re: [PATCH v2 1/2] err.h: Add ERR_PTR_PCPU(), PTR_ERR_PCPU() and IS_ERR

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Message-ID: <Zsb4PAOjlOeD1l6K@arm.com>
Date: Thu, 22 Aug 2024 09:35:08 +0100
From: Catalin Marinas <catalin.marinas@....com>
To: Uros Bizjak <ubizjak@...il.com>
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v2 1/2] err.h: Add ERR_PTR_PCPU(), PTR_ERR_PCPU() and
 IS_ERR_PCPU() macros

On Sun, Aug 18, 2024 at 11:01:51PM +0200, Uros Bizjak wrote:
> Add ERR_PTR_PCPU(), PTR_ERR_PCPU() and IS_ERR_PCPU() macros that
> operate on pointers in the percpu address space.
> 
> These macros remove the need for (__force void *) function
> argument casts (to avoid sparse -Wcast-from-as warnings).
> 
> The patch will also avoid future build errors due to pointer address
> space mismatch with enabled strict percpu address space checks.
> 
> Signed-off-by: Uros Bizjak <ubizjak@...il.com>
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Andrew Morton <akpm@...ux-foundation.org>

Acked-by: Catalin Marinas <catalin.marinas@....com>