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Date:   Fri, 04 Dec 2020 09:43:32 +0000
From:   Mark Einon <mark.einon@...il.com>
To:     Arnd Bergmann <arnd@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Madalin Bucur <madalin.bucur@....com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        Simon Horman <simon.horman@...ronome.com>,
        Jiri Pirko <jiri@...nulli.us>
Cc:     Arnd Bergmann <arnd@...db.de>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
        oss-drivers@...ronome.com
Subject: Re: [PATCH] ethernet: select CONFIG_CRC32 as needed

On Fri, 2020-12-04 at 00:20 +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> 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+0
> xb68): 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 <arnd@...db.de>
> ---
>  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(+)

For the Agere et131x driver:

Acked-by: Mark Einon <mark.einon@...il.com>

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