I got below build error if CONFIG_I2C_STU300=m. ERROR: "i2c_register_board_info" [arch/arm/mach-u300/i2c.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2
Fix it by adding proper ifdef guard in i2c.h and Makefile. So arch/arm/mach-u300/i2c.c will be compiled when CONFIG_I2C_STU300 is configured as built-in or as a module. Signed-off-by: Axel Lin <axel....@ingics.com> --- arch/arm/mach-u300/Makefile | 4 +++- arch/arm/mach-u300/i2c.h | 2 +- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-u300/Makefile b/arch/arm/mach-u300/Makefile index 5a86c58..f612d17 100644 --- a/arch/arm/mach-u300/Makefile +++ b/arch/arm/mach-u300/Makefile @@ -9,5 +9,7 @@ obj- := obj-$(CONFIG_SPI_PL022) += spi.o obj-$(CONFIG_MACH_U300_SPIDUMMY) += dummyspichip.o -obj-$(CONFIG_I2C_STU300) += i2c.o +ifneq ($(CONFIG_I2C_STU300),) +obj-y += i2c.o +endif obj-$(CONFIG_REGULATOR_AB3100) += regulator.o diff --git a/arch/arm/mach-u300/i2c.h b/arch/arm/mach-u300/i2c.h index 485c02e..9eec276 100644 --- a/arch/arm/mach-u300/i2c.h +++ b/arch/arm/mach-u300/i2c.h @@ -11,7 +11,7 @@ #ifndef MACH_U300_I2C_H #define MACH_U300_I2C_H -#ifdef CONFIG_I2C_STU300 +#if IS_ENABLED(ISCONFIG_I2C_STU300) void __init u300_i2c_register_board_devices(void); #else /* Compile out this stuff if no I2C adapter is available */ -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
