linux-kernel - Re: [PATCH] x86/mm: Remove unnecessary casts in init

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Message-ID: <b1abc6a9-91f4-48a3-b096-239ea65f3256@p183>
Date: Sun, 7 Jan 2024 19:46:08 +0300
From: Alexey Dobriyan <adobriyan@...il.com>
To: Yukai Wu <wuyukai0403@...com>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>,
	Andy Lutomirski <luto@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/mm: Remove unnecessary casts in init_64.c

> - pgd = (pgd_t *)page_address(page) + pgd_index(addr);
> + pgd = page_address(page) + pgd_index(addr);

Please learn C operator precedence rules before touching this code.

> - pgd = (pgd_t *)page_address(page) + pgd_index(addr);
> + pgd = page_address(page) + pgd_index(addr);