linux-hardening - Re: [PATCH v2 07/14] mfd: zl3073x: Add components versions register defs

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Message-ID: <e80b24f2-a936-4f7a-a86b-af3bc9b6a380@redhat.com>
Date: Fri, 11 Apr 2025 15:19:20 +0200
From: Ivan Vecera <ivecera@...hat.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: Andy Shevchenko <andy.shevchenko@...il.com>, netdev@...r.kernel.org,
 Vadim Fedorenko <vadim.fedorenko@...ux.dev>,
 Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>,
 Jiri Pirko <jiri@...nulli.us>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Prathosh Satish <Prathosh.Satish@...rochip.com>,
 Lee Jones <lee@...nel.org>, Kees Cook <kees@...nel.org>,
 Andy Shevchenko <andy@...nel.org>, Andrew Morton
 <akpm@...ux-foundation.org>, Michal Schmidt <mschmidt@...hat.com>,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2 07/14] mfd: zl3073x: Add components versions register
 defs



On 11. 04. 25 2:31 odp., Andrew Lunn wrote:
>> 2nd regmap for indirect registers (mailboxes) (pages 10-15) with disabled
>> locking:
>>
>> regmap_config {
>> 	...
>> 	.disable_lock = true,
>> 	...
>> };
> 
> Do all registers in pages 10-15 need special locking? Or just a
> subset?
> 
> 	Andrew
> 
All of them... 1 page (>=10) == 1 mailbox.

I.