netdev - Re: [PATCH net-next 1/4] net: stmmac: rk: replace HIWORD_UPDATE() with GRF

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Message-ID: <fbfd62b5-d584-4e00-a666-fad0438709e8@bootlin.com>
Date: Fri, 14 Nov 2025 09:19:25 +0100
From: Maxime Chevallier <maxime.chevallier@...tlin.com>
To: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
 Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>,
 Andrew Lunn <andrew+netdev@...n.ch>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Heiko Stuebner <heiko@...ech.de>, Jakub Kicinski <kuba@...nel.org>,
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 linux-stm32@...md-mailman.stormreply.com,
 Maxime Coquelin <mcoquelin.stm32@...il.com>, netdev@...r.kernel.org,
 Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH net-next 1/4] net: stmmac: rk: replace HIWORD_UPDATE()
 with GRF_FIELD()

Hi,

On 13/11/2025 18:46, Russell King (Oracle) wrote:
> Provide GRF_FIELD() which takes the high/low bit numbers of the field
> and field value, generates the mask and passes it to FIELD_PREP_WM16.
> Replace all HIWORD_UPDATE() instances with this.
> 
> No change to produced code on aarch64.
> 
> Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>

Reviewed-by: Maxime Chevallier <maxime.chevallier@...tlin.com>

Maxime