Re: [net-next v4 5/5] ARM: mxs_defconfig: Enable CONFIG_FEC_MTIP_L2SW to support MTIP L2 switch

Lukasz Majewski
2025-04-10T07:38:36Z

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Hi Stefan,

> Hi Lukasz,
>
> Am 07.04.25 um 16:51 schrieb Lukasz Majewski:
> > This patch enables support for More Than IP switch available on some
> > imx28[7] devices.
> >
> > Signed-off-by: Lukasz Majewski <lukma@denx.de>
> thanks adding the driver to mxs_defconfig. Unfortunately it's not
> possible for reviewers to identify the relevant changes,

Could you be more specific here?
As fair as I see - there is only 14 LOCs changed for review.

Please also be aware that MTIP L2 switch driver has some dependencies -
on e.g. SWITCHDEV and BRIDGE, which had to be enabled to allow the
former one to be active.

> also the
> commit messages doesn't provide further information.
>

What kind of extra information shall I provide? IMHO the patch is
self-explaining.

> In general there are two approaches to solves this:
> 1) prepend an additional patch which synchronizes mxs_defconfig with
> current mainline
> 2) manually create the relevant changes against mxs_defconfig
>
> The decision about the approaches is up to the maintainer.

I took the linux-next's (or net-next) mxs defconfig (cp it to be
.config)

Then run CROSS_COMPILE= ... make ARCH=arm menuconfig
Enabled all the relevant Kconfig options and run

CROSS_COMPILE= ... make ARCH=arm savedefconfig
and copy defconfig to mxs_defconfig.
Then I used git to prepare the patch.

Isn't the above procedure correct?

>
> Btw driver review will follow ...
>
> Regards
> > ---
> > Changes for v4:
> > - New patch
> > ---
> > arch/arm/configs/mxs_defconfig | 14 +++-----------
> > 1 file changed, 3 insertions(+), 11 deletions(-)
> >
> > diff --git a/arch/arm/configs/mxs_defconfig
> > b/arch/arm/configs/mxs_defconfig index d8a6e43c401e..4dc4306c035f
> > 100644 --- a/arch/arm/configs/mxs_defconfig
> > +++ b/arch/arm/configs/mxs_defconfig
> > @@ -32,11 +32,10 @@ CONFIG_INET=y
> > CONFIG_IP_PNP=y
> > CONFIG_IP_PNP_DHCP=y
> > CONFIG_SYN_COOKIES=y
> > -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
> > -# CONFIG_INET_XFRM_MODE_TUNNEL is not set
> > -# CONFIG_INET_XFRM_MODE_BEET is not set
> > # CONFIG_INET_DIAG is not set
> > # CONFIG_IPV6 is not set
> > +CONFIG_BRIDGE=y
> > +CONFIG_NET_SWITCHDEV=y
> > CONFIG_CAN=m
> > # CONFIG_WIRELESS is not set
> > CONFIG_DEVTMPFS=y
> > @@ -45,7 +44,6 @@ CONFIG_MTD=y
> > CONFIG_MTD_CMDLINE_PARTS=y
> > CONFIG_MTD_BLOCK=y
> > CONFIG_MTD_DATAFLASH=y
> > -CONFIG_MTD_M25P80=y
> > CONFIG_MTD_SST25L=y
> > CONFIG_MTD_RAW_NAND=y
> > CONFIG_MTD_NAND_GPMI_NAND=y
> > @@ -56,11 +54,11 @@ CONFIG_EEPROM_AT24=y
> > CONFIG_SCSI=y
> > CONFIG_BLK_DEV_SD=y
> > CONFIG_NETDEVICES=y
> > +CONFIG_FEC_MTIP_L2SW=y
> > CONFIG_ENC28J60=y
> > CONFIG_ICPLUS_PHY=y
> > CONFIG_MICREL_PHY=y
> > CONFIG_REALTEK_PHY=y
> > -CONFIG_SMSC_PHY=y
> > CONFIG_CAN_FLEXCAN=m
> > CONFIG_USB_USBNET=y
> > CONFIG_USB_NET_SMSC95XX=y
> > @@ -77,13 +75,11 @@ CONFIG_SERIAL_AMBA_PL011=y
> > CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
> > CONFIG_SERIAL_MXS_AUART=y
> > # CONFIG_HW_RANDOM is not set
> > -# CONFIG_I2C_COMPAT is not set
> > CONFIG_I2C_CHARDEV=y
> > CONFIG_I2C_MXS=y
> > CONFIG_SPI=y
> > CONFIG_SPI_GPIO=m
> > CONFIG_SPI_MXS=y
> > -CONFIG_GPIO_SYSFS=y
> > # CONFIG_HWMON is not set
> > CONFIG_WATCHDOG=y
> > CONFIG_STMP3XXX_RTC_WATCHDOG=y
> > @@ -138,10 +134,6 @@ CONFIG_PWM_MXS=y
> > CONFIG_NVMEM_MXS_OCOTP=y
> > CONFIG_EXT4_FS=y
> > # CONFIG_DNOTIFY is not set
> > -CONFIG_NETFS_SUPPORT=m
> > -CONFIG_FSCACHE=y
> > -CONFIG_FSCACHE_STATS=y
> > -CONFIG_CACHEFILES=m
> > CONFIG_VFAT_FS=y
> > CONFIG_TMPFS=y
> > CONFIG_TMPFS_POSIX_ACL=y
>

Best regards,

Lukasz Majewski

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