On (18/09/07 13:20), Miles Lane didst pronounce: > LD .tmp_vmlinux1 > drivers/built-in.o: In function `acpi_ac_remove': > ac.c:(.text+0x3eeec): undefined reference to `power_supply_unregister' > drivers/built-in.o: In function `acpi_ac_add': > ac.c:(.text+0x3f10b): undefined reference to `power_supply_register' > make: *** [.tmp_vmlinux1] Error 1 > Hi Miles, The problem appears to be that ACPI_AC is compiled in but POWER_SUPPLY is a module. You could workaround it by making them both modules but I believe the root cause may be a dependency problem. I've included a patch below that when you apply and run make oldconfig should allow you to build your kernel. ACPI folks, is this a fix? If so, there may be other dependency issues that allow a compiled-in feature to depend on a module. Signed-off-by: Mel Gorman <mel@xxxxxxxxx> --- Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.23-rc6-mm1-015_fix_ia64_kgdb/drivers/acpi/Kconfig linux-2.6.23-rc6-mm1-020_fix_acpi/drivers/acpi/Kconfig --- linux-2.6.23-rc6-mm1-015_fix_ia64_kgdb/drivers/acpi/Kconfig 2007-09-11 03:50:29.000000000 +0100 +++ linux-2.6.23-rc6-mm1-020_fix_acpi/drivers/acpi/Kconfig 2007-09-18 19:03:32.000000000 +0100 @@ -88,7 +88,7 @@ config ACPI_PROC_EVENT config ACPI_AC tristate "AC Adapter" - depends on X86 + depends on X86 && POWER_SUPPLY default y help This driver adds support for the AC Adapter object, which indicates - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
