After commit 171a9bae68c7 ("staging/octeon: Allow test build on !MIPS"), the following combination of configs cause a few Kconfig warnings and build errors (distilled from arm allyesconfig and Randy's randconfig builds):
CONFIG_NETDEVICES=y CONFIG_STAGING=y CONFIG_COMPILE_TEST=y
and CONFIG_OCTEON_ETHERNET as either a module or built-in.
WARNING: unmet direct dependencies detected for MDIO_OCTEON Depends on [n]: NETDEVICES [=y] && MDIO_DEVICE [=y] && MDIO_BUS [=y] && 64BIT [=n] && HAS_IOMEM [=y] && OF_MDIO [=n] Selected by [y]: - OCTEON_ETHERNET [=y] && STAGING [=y] && (CAVIUM_OCTEON_SOC || COMPILE_TEST [=y]) && NETDEVICES [=y]
In file included from ../drivers/net/phy/mdio-octeon.c:14: ../drivers/net/phy/mdio-cavium.h:111:36: error: implicit declaration of function ‘writeq’; did you mean ‘writel’? [-Werror=implicit-function-declaration] 111 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr) | ^~~~~~
CONFIG_64BIT is not strictly necessary if the proper readq/writeq definitions are included from io-64-nonatomic-lo-hi.h.
CONFIG_OF_MDIO is not needed when CONFIG_COMPILE_TEST is enabled because of commit f9dc9ac51610 ("of/mdio: Add dummy functions in of_mdio.h.").
Fixes: 171a9bae68c7 ("staging/octeon: Allow test build on !MIPS") Reported-by: kbuild test robot lkp@intel.com Reported-by: Mark Brown broonie@kernel.org Reported-by: Randy Dunlap rdunlap@infradead.org Signed-off-by: Nathan Chancellor natechancellor@gmail.com ---
v1 -> v2:
* Address Randy's reported failure here: https://lore.kernel.org/netdev/b3444283-7a77-ece8-7ac6-41756aa7dc60@infradea... by not requiring CONFIG_OF_MDIO when CONFIG_COMPILE_TEST is set.
* Improve commit message
drivers/net/phy/Kconfig | 4 ++-- drivers/net/phy/mdio-cavium.h | 2 ++ 2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 20f14c5fbb7e..0e3d9e3d3533 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -159,8 +159,8 @@ config MDIO_MSCC_MIIM
config MDIO_OCTEON tristate "Octeon and some ThunderX SOCs MDIO buses" - depends on 64BIT - depends on HAS_IOMEM && OF_MDIO + depends on (64BIT && OF_MDIO) || COMPILE_TEST + depends on HAS_IOMEM select MDIO_CAVIUM help This module provides a driver for the Octeon and ThunderX MDIO diff --git a/drivers/net/phy/mdio-cavium.h b/drivers/net/phy/mdio-cavium.h index ed5f9bb5448d..b7f89ad27465 100644 --- a/drivers/net/phy/mdio-cavium.h +++ b/drivers/net/phy/mdio-cavium.h @@ -108,6 +108,8 @@ static inline u64 oct_mdio_readq(u64 addr) return cvmx_read_csr(addr); } #else +#include <linux/io-64-nonatomic-lo-hi.h> + #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr) #define oct_mdio_readq(addr) readq((void *)addr) #endif