linux-kernel - Re: [PATCH -next] sfc: siena: Fix Kconfig dependencies

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Date:   Fri, 13 May 2022 13:50:00 +0100
From:   Martin Habets <habetsm.xilinx@...il.com>
To:     Ren Zhijie <renzhijie2@...wei.com>
Cc:     ecree.xilinx@...il.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] sfc: siena: Fix Kconfig dependencies

Nit: the subject should have net-next in stead of -next.

On Fri, May 13, 2022 at 09:27:21AM +0800, Ren Zhijie wrote:
> If CONFIG_PTP_1588_CLOCK=m and CONFIG_SFC_SIENA=y, the siena driver will fail to link:
> 
> drivers/net/ethernet/sfc/siena/ptp.o: In function `efx_ptp_remove_channel':
> ptp.c:(.text+0xa28): undefined reference to `ptp_clock_unregister'
> drivers/net/ethernet/sfc/siena/ptp.o: In function `efx_ptp_probe_channel':
> ptp.c:(.text+0x13a0): undefined reference to `ptp_clock_register'
> ptp.c:(.text+0x1470): undefined reference to `ptp_clock_unregister'
> drivers/net/ethernet/sfc/siena/ptp.o: In function `efx_ptp_pps_worker':
> ptp.c:(.text+0x1d29): undefined reference to `ptp_clock_event'
> drivers/net/ethernet/sfc/siena/ptp.o: In function `efx_siena_ptp_get_ts_info':
> ptp.c:(.text+0x301b): undefined reference to `ptp_clock_index'
> 
> To fix this build error, make SFC_SIENA depends on PTP_1588_CLOCK.
> 
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Fixes: d48523cb88e0("sfc: Copy shared files needed for Siena (part 2)")
> Signed-off-by: Ren Zhijie <renzhijie2@...wei.com>

Acked-by: Martin Habets <habetsm.xilinx@...il.com>

> ---
>  drivers/net/ethernet/sfc/siena/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/sfc/siena/Kconfig b/drivers/net/ethernet/sfc/siena/Kconfig
> index 3d52aee50d5a..3675233e963a 100644
> --- a/drivers/net/ethernet/sfc/siena/Kconfig
> +++ b/drivers/net/ethernet/sfc/siena/Kconfig
> @@ -2,6 +2,7 @@
>  config SFC_SIENA
>  	tristate "Solarflare SFC9000 support"
>  	depends on PCI
> +	depends on PTP_1588_CLOCK
>  	select MDIO
>  	select CRC32
>  	help
> -- 
> 2.17.1