linux-kernel - [PATCH] net: ti: icss-iep: add dependency for PTP

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Message-ID: <8ba840a5-baec-733a-f538-a196f5421190@ti.com>
Date:   Tue, 19 Sep 2023 14:02:19 +0530
From:   MD Danish Anwar <danishanwar@...com>
To:     Randy Dunlap <rdunlap@...radead.org>,
        <linux-kernel@...r.kernel.org>
CC:     kernel test robot <lkp@...el.com>, Roger Quadros <rogerq@...com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, <netdev@...r.kernel.org>
Subject: [PATCH] net: ti: icss-iep: add dependency for PTP

On 16/09/23 10:37, Randy Dunlap wrote:
> When CONFIG_PTP_1588_CLOCK=m and CONFIG_TI_ICSS_IEP=y,
> there are build errors when referencing PTP functions.
> Fix this by making TI_ICSS_IEP depend on PTP_1588_CLOCK_OPTIONAL.
> Also, since TI_ICSSG_PRUETH selects TI_ICSS_IEP and selects don't
> follow dependencies, make the former also depend on
> PTP_1588_CLOCK_OPTIONAL.
> 
> Fixes these build errors:
> 
> aarch64-linux-ld: drivers/net/ethernet/ti/icssg/icss_iep.o: in function `icss_iep_get_ptp_clock_idx':
> icss_iep.c:(.text+0x234): undefined reference to `ptp_clock_index'
> aarch64-linux-ld: drivers/net/ethernet/ti/icssg/icss_iep.o: in function `icss_iep_exit':
> icss_iep.c:(.text+0x634): undefined reference to `ptp_clock_unregister'
> aarch64-linux-ld: drivers/net/ethernet/ti/icssg/icss_iep.o: in function `icss_iep_init':
> icss_iep.c:(.text+0x1848): undefined reference to `ptp_clock_register'
> 
> Fixes: c1e0230eeaab ("net: ti: icss-iep: Add IEP driver")
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> Reported-by: kernel test robot <lkp@...el.com>
> Closes: lore.kernel.org/r/202309151207.NPDMiINe-lkp@...el.com
> Cc: Roger Quadros <rogerq@...com>
> Cc: Md Danish Anwar <danishanwar@...com>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Eric Dumazet <edumazet@...gle.com>
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: Paolo Abeni <pabeni@...hat.com>
> Cc: netdev@...r.kernel.org
> ---
>  drivers/net/ethernet/ti/Kconfig |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff -- a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
> --- a/drivers/net/ethernet/ti/Kconfig
> +++ b/drivers/net/ethernet/ti/Kconfig
> @@ -189,6 +189,7 @@ config TI_ICSSG_PRUETH
>  	select TI_ICSS_IEP
>  	depends on PRU_REMOTEPROC
>  	depends on ARCH_K3 && OF && TI_K3_UDMA_GLUE_LAYER
> +	depends on PTP_1588_CLOCK_OPTIONAL
>  	help
>  	  Support dual Gigabit Ethernet ports over the ICSSG PRU Subsystem.
>  	  This subsystem is available starting with the AM65 platform.
> @@ -200,6 +201,7 @@ config TI_ICSSG_PRUETH
>  config TI_ICSS_IEP
>  	tristate "TI PRU ICSS IEP driver"
>  	depends on TI_PRUSS
> +	depends on PTP_1588_CLOCK_OPTIONAL
>  	default TI_PRUSS
>  	help
>  	  This driver enables support for the PRU-ICSS Industrial Ethernet

This doesn't apply cleanly on netdev/net (using git am) as the
dependency on PTP_1588_CLOCK_OPTIONAL in TI_ICSS_IEP is already added by
[1]. However the dependency on PTP_1588_CLOCK_OPTIONAL in
TI_ICSSG_PRUETH is not added yet and can be added by this patch.

With this,
Reviewed-by: MD Danish Anwar <danishanwar@...com>

[1]
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=a8f367f7e131

-- 
Thanks and Regards,
Danish