On 18.12.2015 23:46, Arnd Bergmann wrote: > I got one randconfig build that failed to compile plat-samsung/pm-debug.c > on s3c64xx: > > In file included from arch/arm/plat-samsung/pm-debug.c:27:0: > arch/arm/mach-s3c64xx/include/mach/pm-core.h: In function 's3c_pm_debug_init_uart': > arch/arm/mach-s3c64xx/include/mach/pm-core.h:25:25: error: 'S3C_VA_SYS' undeclared (first use in this function) > u32 tmp = __raw_readl(S3C_PCLK_GATE); > arch/arm/mach-s3c64xx/include/mach/pm-core.h:25:25: note: each undeclared identifier is reported only once for each function it appears in > arch/arm/mach-s3c64xx/include/mach/pm-core.h:39:2: error: implicit declaration of function 'udelay' [-Werror=implicit-function-declaration] > udelay(10); > > I have not investigated why this does not show up much more often, I > guess the headers are usually included from elsewhere, but adding > explicit #include statements is an obvious fix. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> > --- > I suspect this has been broken for a long time, so no rush, but please > apply this to a cleanup branch. > The dependencies for plat-samsung/SAMSUNG_PM_* symbols are little bit mixed up: 1. pm-common.o depends on PM_SLEEP, 2. pm.o and pm-debug.o depend on PM and sometimes they use stuff from pm-common. It is possible to create a config with PM_SLEEP=n and PM=y so this is confusing (pm-common won't be linked). I think this still compiles fine because of various #ifdefs but it would be nice to clean it up. Anyway your patch looks correct: Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx> Best regards, Krzysztof -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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