[Intel-wired-lan] [PATCH] ixgbe: fix Kconfig when driver is not a module
Jeff Kirsher
jeffrey.t.kirsher at intel.com
Thu Jan 3 21:42:20 UTC 2019
On Thu, 2019-01-03 at 13:35 -0800, Jeff Kirsher wrote:
> The new ability added to the driver to use mii_bus to handle MII
> related
> ioctls is causing compile issues when the driver is compiled into the
> kernel (i.e. not a module).
>
> The simple solution of requiring the driver to be compiled as a
> module when
> MDIO_BUS is a module, causes a recursion Kconfig issue due to IPSec
> dependencies.
>
> So created another Kconfig option for ixgbe, to enable mdio_bus
> support for
> DSA devices. This solution solves the problem when the ixgbe driver
> is
> compiled into the kernel and MDIO_BUS is compiled as a module. In
> this
> case, the IXGBE_MDIO option is disabled and the code is not compiled
> into the driver.
>
> CC: Dave Jones <davej at codemonkey.org.uk>
> CC: Steve Douthit <stephend at silicom-usa.com>
> CC: Florian Fainelli <f.fainelli at gmail.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher at intel.com>
> ---
> drivers/net/ethernet/intel/Kconfig | 11 ++++++++++-
> drivers/net/ethernet/intel/ixgbe/ixgbe.h | 4 ++++
> drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 12 ++++++++++--
> drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c | 4 ++++
> drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h | 3 ++-
> 5 files changed, 30 insertions(+), 4 deletions(-)
I have done the following compile tests to comfirm this resolves the
issue:
Kconfig: 1 2 3 4
-------- --- --- --- ---
ixgbe m m y y
ixgbe_mdio y n y y
mdio_bus m m m y
phylib m m m y
Test #3 resulted in ixgbe_mdio being disabled and code not compiled
into the driver.
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