linux-kernel - Re: [PATCH v2 04/20] can: netlink: refactor can_validate

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Message-ID: <20250910-outrageous-liberal-falcon-9215d3-mkl@pengutronix.de>
Date: Wed, 10 Sep 2025 08:13:29 +0200
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: Vincent Mailhol <mailhol@...nel.org>
Cc: Oliver Hartkopp <socketcan@...tkopp.net>, 
	Stéphane Grosjean <stephane.grosjean@...-networks.com>, Robert Nawrath <mbro1689@...il.com>, 
	Minh Le <minh.le.aj@...esas.com>, Duy Nguyen <duy.nguyen.rh@...esas.com>, 
	linux-can@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 04/20] can: netlink: refactor can_validate_bittiming()

On 10.09.2025 15:03:29, Vincent Mailhol wrote:
> Whenever can_validate_bittiming() is called, it is always preceded by
> some boilerplate code which was copy pasted all over the place. Move
> that repeated code directly inside can_validate_bittiming().
> 
> Finally, the mempcy() is not needed. Just use the pointer returned by
> nla_data() as-is.

The memcpy()'ed struct is guaranteed to be properly aligned, is this
also the case for the casted nla_data() pointer?

regards,
Marc

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