netdev - Re: [PATCH net-next 1/4] net: phy: remove fixup-related definitions from phy.h which are not used outside phylib

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Message-ID: <be779825-b17c-4f72-a442-9371fdf05c2a@gmail.com>
Date: Fri, 14 Feb 2025 12:11:09 +0100
From: Heiner Kallweit <hkallweit1@...il.com>
To: Mateusz Polchlopek <mateusz.polchlopek@...el.com>,
 Andrew Lunn <andrew@...n.ch>,
 Russell King - ARM Linux <linux@...linux.org.uk>,
 Paolo Abeni <pabeni@...hat.com>, Jakub Kicinski <kuba@...nel.org>,
 David Miller <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 1/4] net: phy: remove fixup-related definitions
 from phy.h which are not used outside phylib

On 14.02.2025 11:59, Mateusz Polchlopek wrote:
> 
> 
> On 2/13/2025 10:48 PM, Heiner Kallweit wrote:
>> Certain fixup-related definitions aren't used outside phy_device.c.
>> So make them private and remove them from phy.h.
>>
>> Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
>> ---
>>   drivers/net/phy/phy_device.c | 16 +++++++++++++---
>>   include/linux/phy.h          | 14 --------------
>>   2 files changed, 13 insertions(+), 17 deletions(-)
>>
>> diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
>> index 9b06ba92f..14c312ad2 100644
>> --- a/drivers/net/phy/phy_device.c
>> +++ b/drivers/net/phy/phy_device.c
>> @@ -45,6 +45,17 @@ MODULE_DESCRIPTION("PHY library");
>>   MODULE_AUTHOR("Andy Fleming");
>>   MODULE_LICENSE("GPL");
>>   +#define    PHY_ANY_ID    "MATCH ANY PHY"
>> +#define    PHY_ANY_UID    0xffffffff
>> +
> 
> Overall looks like a nice cleanup but I am not sure about this space
> between #define and PHY_ANY_ID or PHY_ANY_UID...
> 
There's a tab, which effectively equals a space. Maybe it's just the
diff which is misleading. At least checkpatch didn't complain.

>> +struct phy_fixup {
>> +    struct list_head list;
>> +    char bus_id[MII_BUS_ID_SIZE + 3];
>> +    u32 phy_uid;
>> +    u32 phy_uid_mask;
>> +    int (*run)(struct phy_device *phydev);
>> +};
>> +
>>   __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_features) __ro_after_init;
>>   EXPORT_SYMBOL_GPL(phy_basic_features);
>>   @@ -378,8 +389,8 @@ static SIMPLE_DEV_PM_OPS(mdio_bus_phy_pm_ops, mdio_bus_phy_suspend,
>>    *    comparison
>>    * @run: The actual code to be run when a matching PHY is found
>>    */
>> -int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
>> -               int (*run)(struct phy_device *))
>> +static int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
>> +                  int (*run)(struct phy_device *))
>>   {
>>       struct phy_fixup *fixup = kzalloc(sizeof(*fixup), GFP_KERNEL);
>>   @@ -397,7 +408,6 @@ int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
>>         return 0;
>>   }
>> -EXPORT_SYMBOL(phy_register_fixup);
>>     /* Registers a fixup to be run on any PHY with the UID in phy_uid */
>>   int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
>> diff --git a/include/linux/phy.h b/include/linux/phy.h
>> index 29df4c602..96e427c2c 100644
>> --- a/include/linux/phy.h
>> +++ b/include/linux/phy.h
>> @@ -1277,9 +1277,6 @@ struct phy_driver {
>>   #define to_phy_driver(d) container_of_const(to_mdio_common_driver(d),        \
>>                         struct phy_driver, mdiodrv)
>>   -#define PHY_ANY_ID "MATCH ANY PHY"
>> -#define PHY_ANY_UID 0xffffffff
>> -
>>   #define PHY_ID_MATCH_EXACT(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 0)
>>   #define PHY_ID_MATCH_MODEL(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 4)
>>   #define PHY_ID_MATCH_VENDOR(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 10)
>> @@ -1312,15 +1309,6 @@ static inline bool phydev_id_compare(struct phy_device *phydev, u32 id)
>>       return phy_id_compare(id, phydev->phy_id, phydev->drv->phy_id_mask);
>>   }
>>   -/* A Structure for boards to register fixups with the PHY Lib */
>> -struct phy_fixup {
>> -    struct list_head list;
>> -    char bus_id[MII_BUS_ID_SIZE + 3];
>> -    u32 phy_uid;
>> -    u32 phy_uid_mask;
>> -    int (*run)(struct phy_device *phydev);
>> -};
>> -
>>   const char *phy_speed_to_str(int speed);
>>   const char *phy_duplex_to_str(unsigned int duplex);
>>   const char *phy_rate_matching_to_str(int rate_matching);
>> @@ -2117,8 +2105,6 @@ s32 phy_get_internal_delay(struct phy_device *phydev, struct device *dev,
>>   void phy_resolve_pause(unsigned long *local_adv, unsigned long *partner_adv,
>>                  bool *tx_pause, bool *rx_pause);
>>   -int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
>> -               int (*run)(struct phy_device *));
>>   int phy_register_fixup_for_id(const char *bus_id,
>>                     int (*run)(struct phy_device *));
>>   int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
>