562c65486c
When NET_DSA_MICROCHIP_KSZ_COMMON is built-in but PTP is a loadable
module, the ksz_ptp support still causes a link failure:
ld.lld-16: error: undefined symbol: ptp_clock_index
>>> referenced by ksz_ptp.c
>>> drivers/net/dsa/microchip/ksz_ptp.o:(ksz_get_ts_info) in archive vmlinux.a
This can happen if NET_DSA_MICROCHIP_KSZ8863_SMI is enabled, or
even if none of the KSZ9477_I2C/KSZ_SPI/KSZ8863_SMI ones are active
but only the common module is.
The most straightforward way to address this is to move the
dependency to NET_DSA_MICROCHIP_KSZ_PTP itself, which can now
only be enabled if both PTP_1588_CLOCK support is reachable
from NET_DSA_MICROCHIP_KSZ_COMMON. Alternatively, one could make
NET_DSA_MICROCHIP_KSZ_COMMON a hidden Kconfig symbol and extend the
PTP_1588_CLOCK_OPTIONAL dependency to NET_DSA_MICROCHIP_KSZ8863_SMI as
well, but that is a little more fragile.
Fixes: eac1ea20261e ("net: dsa: microchip: ptp: add the posix clock support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230130131808.1084796-1-arnd@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
42 lines
1.5 KiB
Plaintext
42 lines
1.5 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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menuconfig NET_DSA_MICROCHIP_KSZ_COMMON
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tristate "Microchip KSZ8795/KSZ9477/LAN937x series switch support"
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depends on NET_DSA
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select NET_DSA_TAG_KSZ
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select NET_DSA_TAG_NONE
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help
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This driver adds support for Microchip KSZ9477 series switch and
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KSZ8795/KSZ88x3 switch chips.
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config NET_DSA_MICROCHIP_KSZ9477_I2C
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tristate "KSZ series I2C connected switch driver"
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depends on NET_DSA_MICROCHIP_KSZ_COMMON && I2C
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select REGMAP_I2C
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help
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Select to enable support for registering switches configured through I2C.
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config NET_DSA_MICROCHIP_KSZ_SPI
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tristate "KSZ series SPI connected switch driver"
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depends on NET_DSA_MICROCHIP_KSZ_COMMON && SPI
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select REGMAP_SPI
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help
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Select to enable support for registering switches configured through SPI.
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config NET_DSA_MICROCHIP_KSZ_PTP
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bool "Support for the PTP clock on the KSZ9563/LAN937x Ethernet Switch"
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depends on NET_DSA_MICROCHIP_KSZ_COMMON && PTP_1588_CLOCK
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depends on NET_DSA_MICROCHIP_KSZ_COMMON=m || PTP_1588_CLOCK=y
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help
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Select to enable support for timestamping & PTP clock manipulation in
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KSZ8563/KSZ9563/LAN937x series of switches. KSZ9563/KSZ8563 supports
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only one step timestamping. LAN937x switch supports both one step and
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two step timestamping.
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config NET_DSA_MICROCHIP_KSZ8863_SMI
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tristate "KSZ series SMI connected switch driver"
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depends on NET_DSA_MICROCHIP_KSZ_COMMON
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select MDIO_BITBANG
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help
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Select to enable support for registering switches configured through
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Microchip SMI. It supports the KSZ8863 and KSZ8873 switch.
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