Re: [PATCH net v1] net: phy: micrel: Correct bit assignment for MICREL_KSZ8_P1_ERRATA flag

From: Russell King (Oracle)
Date: Thu Aug 31 2023 - 07:20:52 EST


On Thu, Aug 31, 2023 at 01:04:27PM +0200, Oleksij Rempel wrote:
> The previous assignment of the phy_device quirk for the
> MICREL_KSZ8_P1_ERRATA flag was incorrect, working only due to
> coincidental conditions. Specifically:
>
> - The flag MICREL_KSZ8_P1_ERRATA, intended for KSZ88xx switches, was
> mistakenly overlapping with the MICREL_PHY_FXEN and
> MICREL_PHY_50MHZ_CLK flags.
> - MICREL_PHY_FXEN is used by the KSZ8041 PHY, and its related code path
> wasn't executed for KSZ88xx PHYs and other way around.
> - Additionally, the code path associated with the MICREL_PHY_50MHZ_CLK
> flag wasn't executed for KSZ88xx either.
>
> Fixes: 49011e0c1555d ("net: phy: micrel: ksz886x/ksz8081: add cabletest support")
> Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
> ---
> include/linux/micrel_phy.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h
> index 8bef1ab62bba3..0cedbeb9167c3 100644
> --- a/include/linux/micrel_phy.h
> +++ b/include/linux/micrel_phy.h
> @@ -43,7 +43,7 @@
> /* struct phy_device dev_flags definitions */
> #define MICREL_PHY_50MHZ_CLK 0x00000001
> #define MICREL_PHY_FXEN 0x00000002
> -#define MICREL_KSZ8_P1_ERRATA 0x00000003
> +#define MICREL_KSZ8_P1_ERRATA BIT(3)

Please can you also convert the other two flags to use BIT() as well to
make the entire thing explicitly bit-orientated? Thanks.

--
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