netdev - Re: [PATCH 1/2] net: ethernet: ti: select PAGE

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Date:   Wed, 11 Dec 2019 15:05:58 +0200
From:   Ilias Apalodimas <ilias.apalodimas@...aro.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Murali Karicheri <m-karicheri2@...com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Andrew Lunn <andrew@...n.ch>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH 1/2] net: ethernet: ti: select PAGE_POOL for switchdev
 driver

On Wed, Dec 11, 2019 at 01:56:09PM +0100, Arnd Bergmann wrote:
> The new driver misses a dependency:
> 
> drivers/net/ethernet/ti/cpsw_new.o: In function `cpsw_rx_handler':
> cpsw_new.c:(.text+0x259c): undefined reference to `__page_pool_put_page'
> cpsw_new.c:(.text+0x25d0): undefined reference to `page_pool_alloc_pages'
> drivers/net/ethernet/ti/cpsw_priv.o: In function `cpsw_fill_rx_channels':
> cpsw_priv.c:(.text+0x22d8): undefined reference to `page_pool_alloc_pages'
> cpsw_priv.c:(.text+0x2420): undefined reference to `__page_pool_put_page'
> drivers/net/ethernet/ti/cpsw_priv.o: In function `cpsw_create_xdp_rxqs':
> cpsw_priv.c:(.text+0x2624): undefined reference to `page_pool_create'
> drivers/net/ethernet/ti/cpsw_priv.o: In function `cpsw_run_xdp':
> cpsw_priv.c:(.text+0x2dc8): undefined reference to `__page_pool_put_page'
> 
> Other drivers use 'select' for PAGE_POOL, so do the same here.
> 
> Fixes: ed3525eda4c4 ("net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  drivers/net/ethernet/ti/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
> index a46f4189fde3..bf98e0fa7d8b 100644
> --- a/drivers/net/ethernet/ti/Kconfig
> +++ b/drivers/net/ethernet/ti/Kconfig
> @@ -63,6 +63,7 @@ config TI_CPSW_SWITCHDEV
>  	tristate "TI CPSW Switch Support with switchdev"
>  	depends on ARCH_DAVINCI || ARCH_OMAP2PLUS || COMPILE_TEST
>  	depends on NET_SWITCHDEV
> +	select PAGE_POOL
>  	select TI_DAVINCI_MDIO
>  	select MFD_SYSCON
>  	select REGMAP
> -- 
> 2.20.0
> 

Acked-by: Ilias Apalodimas <ilias.apalodimas@...aro.org>