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Date:   Fri,  4 Dec 2020 00:20:37 +0100
From:   Arnd Bergmann <>
To:     Mark Einon <>,
        "David S. Miller" <>,
        Jakub Kicinski <>,
        Nicolas Ferre <>,
        Claudiu Beznea <>,
        Madalin Bucur <>,
        Saeed Mahameed <>,
        Leon Romanovsky <>,
        Simon Horman <>,
        Jiri Pirko <>
Cc:     Arnd Bergmann <>,,,,
Subject: [PATCH] ethernet: select CONFIG_CRC32 as needed

From: Arnd Bergmann <>

A number of ethernet drivers require crc32 functionality to be
avaialable in the kernel, causing a link error otherwise:

arm-linux-gnueabi-ld: drivers/net/ethernet/agere/et131x.o: in function `et1310_setup_device_for_multicast':
et131x.c:(.text+0x5918): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/net/ethernet/cadence/macb_main.o: in function `macb_start_xmit':
macb_main.c:(.text+0x4b88): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/net/ethernet/faraday/ftgmac100.o: in function `ftgmac100_set_rx_mode':
ftgmac100.c:(.text+0x2b38): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/net/ethernet/freescale/fec_main.o: in function `set_multicast_list':
fec_main.c:(.text+0x6120): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/net/ethernet/freescale/fman/fman_dtsec.o: in function `dtsec_add_hash_mac_address':
fman_dtsec.c:(.text+0x830): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/net/ethernet/freescale/fman/fman_dtsec.o:fman_dtsec.c:(.text+0xb68): more undefined references to `crc32_le' follow
arm-linux-gnueabi-ld: drivers/net/ethernet/netronome/nfp/nfpcore/nfp_hwinfo.o: in function `nfp_hwinfo_read':
nfp_hwinfo.c:(.text+0x250): undefined reference to `crc32_be'
arm-linux-gnueabi-ld: nfp_hwinfo.c:(.text+0x288): undefined reference to `crc32_be'
arm-linux-gnueabi-ld: drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.o: in function `nfp_resource_acquire':
nfp_resource.c:(.text+0x144): undefined reference to `crc32_be'
arm-linux-gnueabi-ld: nfp_resource.c:(.text+0x158): undefined reference to `crc32_be'
arm-linux-gnueabi-ld: drivers/net/ethernet/nxp/lpc_eth.o: in function `lpc_eth_set_multicast_list':
lpc_eth.c:(.text+0x1934): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/net/ethernet/rocker/rocker_ofdpa.o: in function `ofdpa_flow_tbl_do':
rocker_ofdpa.c:(.text+0x2e08): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/net/ethernet/rocker/rocker_ofdpa.o: in function `ofdpa_flow_tbl_del':
rocker_ofdpa.c:(.text+0x3074): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/net/ethernet/rocker/rocker_ofdpa.o: in function `ofdpa_port_fdb':
arm-linux-gnueabi-ld: drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.o: in function `mlx5dr_ste_calc_hash_index':
dr_ste.c:(.text+0x354): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/net/ethernet/microchip/lan743x_main.o: in function `lan743x_netdev_set_multicast':
lan743x_main.c:(.text+0x5dc4): undefined reference to `crc32_le'

Add the missing 'select CRC32' entries in Kconfig for each of them.

Signed-off-by: Arnd Bergmann <>
 drivers/net/ethernet/agere/Kconfig              | 1 +
 drivers/net/ethernet/cadence/Kconfig            | 1 +
 drivers/net/ethernet/faraday/Kconfig            | 1 +
 drivers/net/ethernet/freescale/Kconfig          | 1 +
 drivers/net/ethernet/freescale/fman/Kconfig     | 1 +
 drivers/net/ethernet/mellanox/mlx5/core/Kconfig | 1 +
 drivers/net/ethernet/microchip/Kconfig          | 1 +
 drivers/net/ethernet/netronome/Kconfig          | 1 +
 drivers/net/ethernet/nxp/Kconfig                | 1 +
 drivers/net/ethernet/rocker/Kconfig             | 1 +
 10 files changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/agere/Kconfig b/drivers/net/ethernet/agere/Kconfig
index d92516ae59cc..9cd750184947 100644
--- a/drivers/net/ethernet/agere/Kconfig
+++ b/drivers/net/ethernet/agere/Kconfig
@@ -21,6 +21,7 @@ config ET131X
 	tristate "Agere ET-1310 Gigabit Ethernet support"
 	depends on PCI
 	select PHYLIB
+	select CRC32
 	  This driver supports Agere ET-1310 ethernet adapters.
diff --git a/drivers/net/ethernet/cadence/Kconfig b/drivers/net/ethernet/cadence/Kconfig
index 85858163bac5..e432a68ac520 100644
--- a/drivers/net/ethernet/cadence/Kconfig
+++ b/drivers/net/ethernet/cadence/Kconfig
@@ -23,6 +23,7 @@ config MACB
 	tristate "Cadence MACB/GEM support"
 	depends on HAS_DMA && COMMON_CLK
 	select PHYLINK
+	select CRC32
 	  The Cadence MACB ethernet interface is found on many Atmel AT32 and
 	  AT91 parts.  This driver also supports the Cadence GEM (Gigabit
diff --git a/drivers/net/ethernet/faraday/Kconfig b/drivers/net/ethernet/faraday/Kconfig
index c2677ec0564d..3d1e9a302148 100644
--- a/drivers/net/ethernet/faraday/Kconfig
+++ b/drivers/net/ethernet/faraday/Kconfig
@@ -33,6 +33,7 @@ config FTGMAC100
 	depends on !64BIT || BROKEN
 	select PHYLIB
+	select CRC32
 	  This driver supports the FTGMAC100 Gigabit Ethernet controller
 	  from Faraday. It is used on Faraday A369, Andes AG102 and some
diff --git a/drivers/net/ethernet/freescale/Kconfig b/drivers/net/ethernet/freescale/Kconfig
index a1d53ddf1593..3f9175bdce77 100644
--- a/drivers/net/ethernet/freescale/Kconfig
+++ b/drivers/net/ethernet/freescale/Kconfig
@@ -25,6 +25,7 @@ config FEC
 	depends on (M523x || M527x || M5272 || M528x || M520x || M532x || \
 	default ARCH_MXC || SOC_IMX28 if ARM
+	select CRC32
 	select PHYLIB
 	imply PTP_1588_CLOCK
diff --git a/drivers/net/ethernet/freescale/fman/Kconfig b/drivers/net/ethernet/freescale/fman/Kconfig
index 34150182cc35..48bf8088795d 100644
--- a/drivers/net/ethernet/freescale/fman/Kconfig
+++ b/drivers/net/ethernet/freescale/fman/Kconfig
@@ -4,6 +4,7 @@ config FSL_FMAN
 	select PHYLIB
+	select CRC32
 	default n
 		Freescale Data-Path Acceleration Architecture Frame Manager
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
index 99f1ec3b2575..3e371d24c462 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
@@ -198,6 +198,7 @@ config MLX5_EN_TLS
 	bool "Mellanox Technologies software-managed steering"
 	depends on MLX5_CORE_EN && MLX5_ESWITCH
+	select CRC32
 	default y
 	Build support for software-managed steering in the NIC.
diff --git a/drivers/net/ethernet/microchip/Kconfig b/drivers/net/ethernet/microchip/Kconfig
index 31f9a82dc113..d0f6dfe0dcf3 100644
--- a/drivers/net/ethernet/microchip/Kconfig
+++ b/drivers/net/ethernet/microchip/Kconfig
@@ -47,6 +47,7 @@ config LAN743X
 	depends on PCI
 	select PHYLIB
 	select CRC16
+	select CRC32
 	  Support for the Microchip LAN743x PCI Express Gigabit Ethernet chip
diff --git a/drivers/net/ethernet/netronome/Kconfig b/drivers/net/ethernet/netronome/Kconfig
index d8b99d6a0356..b82758d5beed 100644
--- a/drivers/net/ethernet/netronome/Kconfig
+++ b/drivers/net/ethernet/netronome/Kconfig
@@ -22,6 +22,7 @@ config NFP
 	depends on VXLAN || VXLAN=n
 	depends on TLS && TLS_DEVICE || TLS_DEVICE=n
 	select NET_DEVLINK
+	select CRC32
 	  This driver supports the Netronome(R) NFP4000/NFP6000 based
 	  cards working as a advanced Ethernet NIC.  It works with both
diff --git a/drivers/net/ethernet/nxp/Kconfig b/drivers/net/ethernet/nxp/Kconfig
index ee83a71c2509..c84997db828c 100644
--- a/drivers/net/ethernet/nxp/Kconfig
+++ b/drivers/net/ethernet/nxp/Kconfig
@@ -3,6 +3,7 @@ config LPC_ENET
 	tristate "NXP ethernet MAC on LPC devices"
 	depends on ARCH_LPC32XX || COMPILE_TEST
 	select PHYLIB
+	select CRC32
 	  Say Y or M here if you want to use the NXP ethernet MAC included on
 	  some NXP LPC devices. You can safely enable this option for LPC32xx
diff --git a/drivers/net/ethernet/rocker/Kconfig b/drivers/net/ethernet/rocker/Kconfig
index 99e1290e0307..2318811ff75a 100644
--- a/drivers/net/ethernet/rocker/Kconfig
+++ b/drivers/net/ethernet/rocker/Kconfig
@@ -19,6 +19,7 @@ if NET_VENDOR_ROCKER
 config ROCKER
 	tristate "Rocker switch driver (EXPERIMENTAL)"
 	depends on PCI && NET_SWITCHDEV && BRIDGE
+	select CRC32
 	  This driver supports Rocker switch device.

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