On Monday 04 January 2016 16:50:25 Mark Brown wrote: > On Mon, Jan 04, 2016 at 12:12:20PM +0000, Build bot for Mark Brown wrote: > > Today's linux-next fails to build an arm allmodconfig (and probably also > at least arm64 though other errors prevent that getting to linking > currently) due to: > > | drivers/built-in.o: In function `dtsec_restart_autoneg': > | :(.text+0x30f86c): undefined reference to `mdiobus_read' > | :(.text+0x30f89c): undefined reference to `mdiobus_write' > | drivers/built-in.o: In function `dtsec_init': > | :(.text+0x31008c): undefined reference to `mdiobus_write' > | :(.text+0x3100b4): undefined reference to `mdiobus_write' > | :(.text+0x3100dc): undefined reference to `mdiobus_write' > | :(.text+0x310128): undefined reference to `mdiobus_write' > | drivers/built-in.o::(.text+0x310150): more undefined references to `mdiobus_write' follow > | drivers/built-in.o: In function `dtsec_config': > | :(.text+0x310804): undefined reference to `of_phy_find_device' > > and various other linker errors caused by the fact that the new fman > driver uses PHYLIB but does not depend on or select it. This is the patch I submitted for the problem. I don't think that simply adding the 'select' would be a good idea because that would force PHYLIB builtin for allmodconfig. Arnd commit 609a5b98a4b703a4fba8becb7ffb2aa1859c4164 Author: Arnd Bergmann <arnd@xxxxxxxx> Date: Fri Jan 1 13:24:03 2016 +0100 [SUBMITTED] fsl/fman: allow modular build ARM allmodconfig fails because of the addition of the FMAN driver: drivers/built-in.o: In function `dtsec_restart_autoneg': binder.c:(.text+0x173328): undefined reference to `mdiobus_read' binder.c:(.text+0x173348): undefined reference to `mdiobus_write' drivers/built-in.o: In function `dtsec_config': binder.c:(.text+0x173d24): undefined reference to `of_phy_find_device' drivers/built-in.o: In function `init_phy': binder.c:(.text+0x1763b0): undefined reference to `of_phy_connect' drivers/built-in.o: In function `stop': binder.c:(.text+0x176014): undefined reference to `phy_stop' drivers/built-in.o: In function `start': binder.c:(.text+0x176078): undefined reference to `phy_start' The reason is that the driver uses PHYLIB, but that is a loadable module here, and fman itself is built-in. This patch makes it possible to configure fman as a module as well so we don't change the status of PHYLIB in an allmodconfig kernel, and it adds a 'select PHYLIB' statement to ensure that phylib is always built-in when fman is. The driver uses "builtin_platform_driver(fman_driver);", which means it cannot be unloaded, but it's still possible to have it as a loadable module that gets loaded once and never removed. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Fixes: 5adae51a64b8 ("fsl/fman: Add FMan MURAM support") diff --git a/drivers/net/ethernet/freescale/fman/Kconfig b/drivers/net/ethernet/freescale/fman/Kconfig index 66b729692b48..79b7c84b7869 100644 --- a/drivers/net/ethernet/freescale/fman/Kconfig +++ b/drivers/net/ethernet/freescale/fman/Kconfig @@ -1,7 +1,8 @@ config FSL_FMAN - bool "FMan support" + tristate "FMan support" depends on FSL_SOC || COMPILE_TEST select GENERIC_ALLOCATOR + select PHYLIB default n help Freescale Data-Path Acceleration Architecture Frame Manager -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html