On Thu, 1 Aug 2013, boris brezillon wrote: > > What happens if uclk isn't found but it is needed? > It will not fail but I guess the usb host won't work as the clock won't > be correctly > configured. > > I agree with you: this is not a good solution. > > Another option is to keep the previous version of this patch and put > uclk handling > in "#ifdef CONFIG_COMMON_CLK #endif" sections. > > Would this be acceptable ? Yes. However, a more elegant approach is to protect the relevant statements with: if (defined(CONFIG_COMMON_CLK)). This preprocessor evaluates this to a 0 or 1, so the compiler will not generate output for the protected source code if the symbol isn't defined. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
