linux-kernel - Re: [PATCH] phy: fix build error in phy-bcm-nsp-usb3 with COMPILE

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Date:   Thu, 23 Mar 2017 17:02:50 -0400
From:   Jon Mason <jon.mason@...adcom.com>
To:     Tobias Regnery <tobias.regnery@...il.com>
Cc:     kishon@...com, rjui@...adcom.com, jonmason@...adcom.com,
        sbranden@...adcom.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] phy: fix build error in phy-bcm-nsp-usb3 with
 COMPILE_TEST

On Tue, Mar 07, 2017 at 12:43:52PM +0100, Tobias Regnery wrote:
> I see the following build error with COMPILE_TEST on randconfig builds:
> 
> divers/built-in.o: In function `nsp_usb3_phy_init':
> phy-bcm-nsp-usb3.c:(.text+0x4050): undefined reference to `mdiobus_write'
> phy-bcm-nsp-usb3.c:(.text+0x406c): undefined reference to `mdiobus_write'
> phy-bcm-nsp-usb3.c:(.text+0x4088): undefined reference to `mdiobus_write'
> phy-bcm-nsp-usb3.c:(.text+0x40a4): undefined reference to `mdiobus_write'
> phy-bcm-nsp-usb3.c:(.text+0x40c0): undefined reference to `mdiobus_write'
> drivers/built-in.o:phy-bcm-nsp-usb3.c:(.text+0x40f2): more undefined references to `mdiobus_write' follow
> drivers/built-in.o: In function `mdio_module_init':
> phy-bcm-nsp-usb3.c:(.init.text+0x134): undefined reference to `mdio_driver_register'
> drivers/built-in.o: In function `mdio_module_exit':
> phy-bcm-nsp-usb3.c:(.exit.text+0xcc): undefined reference to `mdio_driver_unregister'
> 
> Fix this by adding the correct Kconfig dependency.

This patch looks fine, but this driver is being reverted in Kishon's
"fixes" branch.  See
https://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy.git/commit/?h=fixes&id=9200c6f177638909dbbaded8aeeeccbd48744400

Thanks,
Jon 

> 
> Signed-off-by: Tobias Regnery <tobias.regnery@...il.com>
> ---
>  drivers/phy/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
> index dc5277ad1b5a..10e06f0f1dce 100644
> --- a/drivers/phy/Kconfig
> +++ b/drivers/phy/Kconfig
> @@ -512,7 +512,7 @@ config PHY_MESON8B_USB2
>  
>  config PHY_NSP_USB3
>  	tristate "Broadcom NorthStar plus USB3 PHY driver"
> -	depends on OF && (ARCH_BCM_NSP || COMPILE_TEST)
> +	depends on OF && OF_MDIO && (ARCH_BCM_NSP || COMPILE_TEST)
>  	select GENERIC_PHY
>  	default ARCH_BCM_NSP
>  	help
> -- 
> 2.11.0
>