From: Masahiro Yamada yamada.masahiro@socionext.com
[ Upstream commit ccf4975dca233b1d6a74752d6ab35c239edc0d58 ]
<generated/ti-pm-asm-offsets.h> is only generated and included by arch/arm/mach-omap2/, so it does not need to reside in the globally visible include/generated/.
I renamed it to arch/arm/mach-omap2/pm-asm-offsets.h since the prefix 'ti-' is just redundant in mach-omap2/.
My main motivation of this change is to avoid the race condition for the parallel build (-j) when CONFIG_IKHEADERS is enabled.
When it is enabled, all the headers under include/ are archived into kernel/kheaders_data.tar.xz and exposed in the sysfs.
In the parallel build, we have no idea in which order files are built.
- If ti-pm-asm-offsets.h is built before kheaders_data.tar.xz, the header will be included in the archive. Probably nobody will use it, but it is harmless except that it will increase the archive size needlessly.
- If kheaders_data.tar.xz is built before ti-pm-asm-offsets.h, the header will not be included in the archive. However, in the next build, the archive will be re-generated to include the newly-found ti-pm-asm-offsets.h. This is not nice from the build system point of view.
- If ti-pm-asm-offsets.h and kheaders_data.tar.xz are built at the same time, the corrupted header might be included in the archive, which does not look nice either.
This commit fixes the race.
Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com Tested-by: Keerthy j-keerthy@ti.com Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/mach-omap2/.gitignore | 1 + arch/arm/mach-omap2/Makefile | 5 +++-- arch/arm/mach-omap2/sleep33xx.S | 2 +- arch/arm/mach-omap2/sleep43xx.S | 2 +- 4 files changed, 6 insertions(+), 4 deletions(-) create mode 100644 arch/arm/mach-omap2/.gitignore
diff --git a/arch/arm/mach-omap2/.gitignore b/arch/arm/mach-omap2/.gitignore new file mode 100644 index 0000000000000..79a8d6ea71520 --- /dev/null +++ b/arch/arm/mach-omap2/.gitignore @@ -0,0 +1 @@ +pm-asm-offsets.h diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 6006505516219..21c6d4bca3c0f 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -223,9 +223,10 @@ obj-y += omap_phy_internal.o
obj-$(CONFIG_MACH_OMAP2_TUSB6010) += usb-tusb6010.o
-include/generated/ti-pm-asm-offsets.h: arch/arm/mach-omap2/pm-asm-offsets.s FORCE +$(obj)/pm-asm-offsets.h: $(obj)/pm-asm-offsets.s FORCE $(call filechk,offsets,__TI_PM_ASM_OFFSETS_H__)
-$(obj)/sleep33xx.o $(obj)/sleep43xx.o: include/generated/ti-pm-asm-offsets.h +$(obj)/sleep33xx.o $(obj)/sleep43xx.o: $(obj)/pm-asm-offsets.h
targets += pm-asm-offsets.s +clean-files += pm-asm-offsets.h diff --git a/arch/arm/mach-omap2/sleep33xx.S b/arch/arm/mach-omap2/sleep33xx.S index 68fee339d3f12..dc221249bc22c 100644 --- a/arch/arm/mach-omap2/sleep33xx.S +++ b/arch/arm/mach-omap2/sleep33xx.S @@ -6,7 +6,6 @@ * Dave Gerlach, Vaibhav Bedia */
-#include <generated/ti-pm-asm-offsets.h> #include <linux/linkage.h> #include <linux/platform_data/pm33xx.h> #include <linux/ti-emif-sram.h> @@ -15,6 +14,7 @@
#include "iomap.h" #include "cm33xx.h" +#include "pm-asm-offsets.h"
#define AM33XX_CM_CLKCTRL_MODULESTATE_DISABLED 0x00030000 #define AM33XX_CM_CLKCTRL_MODULEMODE_DISABLE 0x0003 diff --git a/arch/arm/mach-omap2/sleep43xx.S b/arch/arm/mach-omap2/sleep43xx.S index c1f4e4852644e..90d2907a2eb27 100644 --- a/arch/arm/mach-omap2/sleep43xx.S +++ b/arch/arm/mach-omap2/sleep43xx.S @@ -6,7 +6,6 @@ * Dave Gerlach, Vaibhav Bedia */
-#include <generated/ti-pm-asm-offsets.h> #include <linux/linkage.h> #include <linux/ti-emif-sram.h> #include <linux/platform_data/pm33xx.h> @@ -19,6 +18,7 @@ #include "iomap.h" #include "omap-secure.h" #include "omap44xx.h" +#include "pm-asm-offsets.h" #include "prm33xx.h" #include "prcm43xx.h"