Re: [PATCH net] net: cavium: Fix build errors due to 'imply CAVIUM_PTP'

[David Miller]

From: YueHaibing <yuehaibing@xxxxxxxxxx>
Date: Thu, 2 Apr 2020 21:23:44 +0800

> If CAVIUM_PTP is m and THUNDER_NIC_VF is y, build fails:
> 
> drivers/net/ethernet/cavium/thunder/nicvf_main.o: In function 'nicvf_remove':
> nicvf_main.c:(.text+0x1f0): undefined reference to 'cavium_ptp_put'
> drivers/net/ethernet/cavium/thunder/nicvf_main.o: In function `nicvf_probe':
> nicvf_main.c:(.text+0x557c): undefined reference to 'cavium_ptp_get'
> 
> THUNDER_NIC_VF imply CAVIUM_PTP, which allow the config now,
> Use IS_REACHABLE() to avoid the vmlinux link error for this case.
> 
> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
> Fixes: def2fbffe62c ("kconfig: allow symbols implied by y to become m")
> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>

Applied, thanks.