If the header soc.h is included more than once in a source (for example once directly by the source file and once indirectly by another header file), then the compiler will generate redefintion errors for the macros in soc.h. Prevent this by only allowing the content in soc.h to be included once.
Signed-off-by: Jon Hunter <jon-hun...@ti.com> --- Please note that I ran into this problem when rebasing my dmtimer fixes series [1] on Tony's Linux-OMAP master branch. I am including plat/cpu.h in dmtimer.h and I found several other files including dmtimer.h are also including soc.h and so generate a lot of errors. [1] http://marc.info/?l=linux-omap&m=135231490218361&w=2 arch/arm/mach-omap2/soc.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h index 0700964..6b270a0 100644 --- a/arch/arm/mach-omap2/soc.h +++ b/arch/arm/mach-omap2/soc.h @@ -25,6 +25,9 @@ * */ +#ifndef __ARCH_ARM_MACH_OMAP2_SOC_H +#define __ARCH_ARM_MACH_OMAP2_SOC_H + #include "omap24xx.h" #include "omap34xx.h" #include "omap44xx.h" @@ -471,3 +474,4 @@ OMAP4_HAS_FEATURE(mpu_1_5ghz, MPU_1_5GHZ) #endif /* __ASSEMBLY__ */ +#endif /* __ARCH_ARM_MACH_OMAP2_SOC_H */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
