linux-kernel - Re: [PATCH] RAS/AMD/ATL: Remove bitwise_xor

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Message-ID: <20251120154153.GBaR82wW8qjDQA8eoV@fat_crate.local>
Date: Thu, 20 Nov 2025 16:41:53 +0100
From: Borislav Petkov <bp@...en8.de>
To: Nikolay Borisov <nik.borisov@...e.com>
Cc: Yazen.Ghannam@....com, linux-edac@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] RAS/AMD/ATL: Remove bitwise_xor_bits

On Tue, Nov 18, 2025 at 02:36:08PM +0200, Nikolay Borisov wrote:
> Fair point, but bitwise xor is the lowest possible operation, I guess we
> care about the higher-level effect, which is calculating parity.

... in a function which "Calculate hash for each Bank bit."?

I don't think it matters either way. This is converting the DRAM addressing
scheme into normalized addresses so as long as it is clear what happens
there...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette