On Thu, Apr 23, 2015 at 08:47:15PM +0200, Geert Uytterhoeven wrote: > If NO_DMA=y: > > drivers/built-in.o: In function `fbtft_framebuffer_alloc': > (.text+0xb53cae): undefined reference to `dmam_alloc_coherent' > > As DMA support is already optional, make it depend on HAS_DMA. > > If !HAS_DMA, "dma" will always be false, and the compiler will optimize > away the call to dmam_alloc_coherent(). Oh that's "sneaky" and not good, let's just make this driver be dependant on DMA and be done with it. I don't like to rely on the optimizer to get things to work properly. thanks, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
