netdev - Re: [PATCH net-next v2 03/17] net: stmmac: use correct type for tx_lpi

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Message-ID: <Z31XhoshqSd-a6pS@shell.armlinux.org.uk>
Date: Tue, 7 Jan 2025 16:34:14 +0000
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>
Cc: Heiner Kallweit <hkallweit1@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Jose Abreu <joabreu@...opsys.com>,
	linux-arm-kernel@...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 v2 03/17] net: stmmac: use correct type for
 tx_lpi_timer

On Mon, Jan 06, 2025 at 05:45:37PM +0100, Andrew Lunn wrote:
> On Mon, Jan 06, 2025 at 12:24:58PM +0000, Russell King (Oracle) wrote:
> > The ethtool interface uses u32 for tx_lpi_timer, and so does phylib.
> > Use u32 to store this internally within stmmac rather than "int"
> > which could misinterpret large values.
> > 
> > Since eee_timer is used to initialise priv->tx_lpi_timer, this also
> > should be unsigned to avoid a negative number being interpreted as a
> > very large positive number.
> > 
> > Also correct "value" in dwmac4_set_eee_lpi_entry_timer() to use u32
> > rather than int, which is derived from tx_lpi_timer, even though
> > masking with STMMAC_ET_MAX will truncate the sign bits. u32 is the
> > value argument type for writel().
> > 
> > Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> 
> Reviewed-by: Andrew Lunn <andrew@...n.ch>

FYI, because of splitting this patch, I've dropped your r-b when
posting v3.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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