From: Richard Fitzgerald rf@opensource.cirrus.com
[ Upstream commit d1059c1b1146870c52f3dac12cb7b6cbf39ed27f ]
A custom DSDT file is mostly used during development or debugging, and in that case it is quite likely to want to rebuild the kernel after changing ONLY the content of the DSDT.
This patch adds the custom DSDT as a prerequisite to tables.o to ensure a rebuild if the DSDT file is updated. Make will merge the prerequisites from multiple rules for the same target.
Signed-off-by: Richard Fitzgerald rf@opensource.cirrus.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/acpi/Makefile | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index ef1ac4d127da..1c81504046d4 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -8,6 +8,11 @@ ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT # # ACPI Boot-Time Table Parsing # +ifeq ($(CONFIG_ACPI_CUSTOM_DSDT),y) +tables.o: $(src)/../../include/$(subst $",,$(CONFIG_ACPI_CUSTOM_DSDT_FILE)) ; + +endif + obj-$(CONFIG_ACPI) += tables.o obj-$(CONFIG_X86) += blacklist.o