RE: [PATCH net-next 3/3] net: stmmac: "speed" passed to fix_mac_speed is an int

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Hi Russell,

> -----Original Message-----
> From: Russell King <rmk@xxxxxxxxxxxxxxx> On Behalf Of Russell King (Oracle)
> Sent: Tuesday, February 18, 2025 7:25 PM
> To: netdev@xxxxxxxxxxxxxxx
> Cc: Alexandre Torgue <alexandre.torgue@xxxxxxxxxxx>; Andrew Lunn
> <andrew+netdev@xxxxxxx>; Chen-Yu Tsai <wens@xxxxxxxx>; David S. Miller
> <davem@xxxxxxxxxxxxx>; Drew Fustini <drew@xxxxxxxx>; Emil Renner
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> Hilman <khilman@xxxxxxxxxxxx>; linux-amlogic@xxxxxxxxxxxxxxxxxxx;
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-arm-msm@xxxxxxxxxxxxxxx;
> linux-riscv@xxxxxxxxxxxxxxxxxxx; linux-stm32@xxxxxxxxxxxxxxxxxxxxxxxxxxxx;
> linux-sunxi@xxxxxxxxxxxxxxx; Martin Blumenstingl
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> <mcoquelin.stm32@xxxxxxxxx>; Minda Chen
> <minda.chen@xxxxxxxxxxxxxxxx>; Neil Armstrong
> <neil.armstrong@xxxxxxxxxx>; iwamatsu nobuhiro(岩松 信洋 ○DITC□D
> IT○OST) <nobuhiro1.iwamatsu@xxxxxxxxxxxxx>; NXP S32 Linux Team
> <s32@xxxxxxx>; Paolo Abeni <pabeni@xxxxxxxxxx>; Pengutronix Kernel
> Team <kernel@xxxxxxxxxxxxxx>; Samuel Holland <samuel@xxxxxxxxxxxx>;
> Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>; Shawn Guo
> <shawnguo@xxxxxxxxxx>; Vinod Koul <vkoul@xxxxxxxxxx>
> Subject: [PATCH net-next 3/3] net: stmmac: "speed" passed to fix_mac_speed
> is an int
> 
> priv->plat->fix_mac_speed() is called from stmmac_mac_link_up(), which
> is passed the speed as an "int". However, fix_mac_speed() implicitly casts this
> to an unsigned int. Some platform glue code print this value using %u, others
> with %d. Some implicitly cast it back to an int, and others to u32.
> 
> Good practice is to use one type and only one type to represent a value being
> passed around a driver.
> 
> Switch all of these over to consistently use "int" when dealing with a speed
> passed from stmmac_mac_link_up(), even though the speed will always be
> positive.
> 
> Signed-off-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
> ---

>  drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c    | 2 +-

Acked-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@xxxxxxxxxxxxx>

Best regards,
  Nobuhiro 







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