Configurations with CONFIG_EDAC_SKX and CONFIG_EDAC_I10NM both enabled, but only one of them built-in and the other being a loadable module fail to link because the common file is built the wrong way:
skx_common.c:672: undefined reference to `__this_module' This overrides the way the modules are built, building both into the zImage file if that happens. Signed-off-by: Arnd Bergmann <[email protected]> --- drivers/edac/Kconfig | 9 +++++++++ drivers/edac/Makefile | 8 ++++++-- 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig index 47eb4d13ed5f..70080926329f 100644 --- a/drivers/edac/Kconfig +++ b/drivers/edac/Kconfig @@ -235,6 +235,7 @@ config EDAC_SKX depends on ACPI_NFIT || !ACPI_NFIT # if ACPI_NFIT=m, EDAC_SKX can't be y select DMI select ACPI_ADXL + select EDAC_SKX_COMMON help Support for error detection and correction the Intel Skylake server Integrated Memory Controllers. If your @@ -247,12 +248,20 @@ config EDAC_I10NM depends on ACPI_NFIT || !ACPI_NFIT # if ACPI_NFIT=m, EDAC_I10NM can't be y select DMI select ACPI_ADXL + select EDAC_SKX_COMMON help Support for error detection and correction the Intel 10nm server Integrated Memory Controllers. If your system has non-volatile DIMMs you should also manually select CONFIG_ACPI_NFIT. +config EDAC_SKX_COMMON + tristate + help + This is an internal helper symbol to ensure that all variants + of the EDAC_SKX driver are either built-in or modular, as mixing + the two causes link time problems. + config EDAC_PND2 tristate "Intel Pondicherry2" depends on PCI && X86_64 && X86_MCE_INTEL diff --git a/drivers/edac/Makefile b/drivers/edac/Makefile index 89ad4a84a0f6..0f363309f662 100644 --- a/drivers/edac/Makefile +++ b/drivers/edac/Makefile @@ -58,10 +58,14 @@ layerscape_edac_mod-y := fsl_ddr_edac.o layerscape_edac.o obj-$(CONFIG_EDAC_LAYERSCAPE) += layerscape_edac_mod.o skx_edac-y := skx_common.o skx_base.o -obj-$(CONFIG_EDAC_SKX) += skx_edac.o +ifdef CONFIG_EDAC_SKX +obj-$(CONFIG_EDAC_SKX_COMMON) += skx_edac.o +endif i10nm_edac-y := skx_common.o i10nm_base.o -obj-$(CONFIG_EDAC_I10NM) += i10nm_edac.o +ifdef CONFIG_EDAC_I10NM +obj-$(CONFIG_EDAC_SKX_COMMON)) += i10nm_edac.o +endif obj-$(CONFIG_EDAC_MV64X60) += mv64x60_edac.o obj-$(CONFIG_EDAC_CELL) += cell_edac.o -- 2.20.0
