linux-kernel - Re: [PATCH v1 RFC 0/7] Modify KSZ9477 DSA driver in preparation to add other KSZ switch drivers

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Message-ID: <37fdf098-1002-2932-0b31-c28db8ede833@gmail.com>
Date:   Mon, 9 Oct 2017 12:58:49 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Tristram.Ha@...rochip.com, Andrew Lunn <andrew@...n.ch>,
        Pavel Machek <pavel@....cz>,
        Ruediger Schmitt <ruediger.schmitt@...lips.com>
Cc:     muvarov@...il.com, nathan.leigh.conrad@...il.com,
        vivien.didelot@...oirfairelinux.com, UNGLinuxDriver@...rochip.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 RFC 0/7] Modify KSZ9477 DSA driver in preparation to
 add other KSZ switch drivers

On 10/06/2017 01:32 PM, Tristram.Ha@...rochip.com wrote:
> From: Tristram Ha <Tristram.Ha@...rochip.com>
> 
> This series of patches is to modify the original KSZ9477 DSA driver so
> that other KSZ switch drivers can be added and use the common code.
> 
> There are several steps to accomplish this achievement.  First is to
> rename some function names with a prefix to indicate chip specific
> function.  Second is to move common code into header that can be shared.
> Last is to modify tag_ksz.c so that it can handle many tail tag formats
> used by different KSZ switch drivers.
> 
> ksz_common.c will contain the common code used by all KSZ switch drivers.
> ksz9477.c will contain KSZ9477 code from the original ksz_common.c.
> ksz9477_spi.c is renamed from ksz_spi.c.
> ksz9477_reg.h is renamed from ksz_9477_reg.h.
> ksz_common.h is added to provide common code access to KSZ switch
> drivers.
> ksz_spi.h is added to provide common SPI access functions to KSZ SPI
> drivers.

Most of this looks fine, and it is probably time to move away from the
RFC state and do a formal patch submission with the Reviewed-by and
Acked-by tags you just collected.

Can you also make sure you prefix your patches with: net: dsa: to be
consistent with other submissions done to that subsystem, e.g:

net: dsa: microchip: Replace license with GPL

Thank you!

> 
> v1
> - Each patch in the set is self-contained
> - Use ksz9477 prefix to indicate KSZ9477 specific code
> - Simplify MIB counter reading code
> - Switch driver code is not accessed from tag_ksz.c
> 
> Tristram Ha (7):
>   Replace license with GPL.
>   Clean up code according to patch check suggestions.
>   Rename some functions with ksz9477 prefix to separate chip specific
>     code from common code.
>   Rename ksz_spi.c to ksz9477_spi.c and update Kconfig in preparation to
>     add more KSZ switch drivers.
>   Break KSZ9477 DSA driver into two files in preparation to add more KSZ
>     switch drivers.  Add common functions in ksz_common.h so that other
>     KSZ switch drivers can access code in ksz_common.c.  Add ksz_spi.h
>     for common functions used by KSZ switch SPI drivers.
>   Add MIB counter reading support.  Rename ksz_9477_reg.h to
>     ksz9477_reg.h for consistency as the product name is always KSZ####.
>     Header file ksz_priv.h no longer contains any chip specific data.
>   Modify tag_ksz.c so that tail tag code can be used by other KSZ switch
>     drivers.
> 
>  drivers/net/dsa/microchip/Kconfig                  |   14 +-
>  drivers/net/dsa/microchip/Makefile                 |    4 +-
>  drivers/net/dsa/microchip/ksz9477.c                | 1376 ++++++++++++++++++++
>  .../microchip/{ksz_9477_reg.h => ksz9477_reg.h}    |   23 +-
>  drivers/net/dsa/microchip/ksz9477_spi.c            |  188 +++
>  drivers/net/dsa/microchip/ksz_common.c             | 1210 ++++-------------
>  drivers/net/dsa/microchip/ksz_common.h             |  234 ++++
>  drivers/net/dsa/microchip/ksz_priv.h               |  258 ++--
>  drivers/net/dsa/microchip/ksz_spi.c                |  216 ---
>  drivers/net/dsa/microchip/ksz_spi.h                |   82 ++
>  include/net/dsa.h                                  |    2 +-
>  net/dsa/Kconfig                                    |    4 +
>  net/dsa/dsa.c                                      |    4 +-
>  net/dsa/dsa_priv.h                                 |    2 +-
>  net/dsa/tag_ksz.c                                  |  107 +-
>  15 files changed, 2331 insertions(+), 1393 deletions(-)
>  create mode 100644 drivers/net/dsa/microchip/ksz9477.c
>  rename drivers/net/dsa/microchip/{ksz_9477_reg.h => ksz9477_reg.h} (98%)
>  create mode 100644 drivers/net/dsa/microchip/ksz9477_spi.c
>  create mode 100644 drivers/net/dsa/microchip/ksz_common.h
>  delete mode 100644 drivers/net/dsa/microchip/ksz_spi.c
>  create mode 100644 drivers/net/dsa/microchip/ksz_spi.h
> 


-- 
Florian