On Mon, Jan 28, 2008 at 01:17:10PM +0100, Jan Engelhardt wrote: > > On Jan 28 2008 01:05, Trent Piepho wrote: > > >Maybe the kernel headers should provide a couple macros for testing > >configs, since people get it wrong over and over again? > > > >#define CONFIG_ON(x) (defined(CONFIG_##x) || defined(CONFIG_##x##_MODULE)) > >#define CONFIG_AVAIABLE(x) (defined(CONFIG_##x) || (defined(MODULE) && > >defined(CONFIG_##x##_MODULE))) > ^AVAILABLE(x) > > What's the difference between these two? > > CONFIG_x_MODULE will never be defined if MODULE is not, so defined(MODULE) > seems redundant. >...
It's not redundant - x is the module you want to use something from, and MODULE is defined when the code you are working on gets compiled as a module. cu Adrian -- "Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/