Hi Arnd, On Wed, Nov 11, 2015 at 09:42:00AM +0100, Arnd Bergmann wrote: > On Wednesday 11 November 2015 10:21:03 Fengguang Wu wrote: > > Hi Sinan, > > > > Sorry please ignore this warning -- it's actually a problem specific > > to the mn10300 arch. I'll disable such warning in mn10300 in future. > > I just tried to find what happened here. mn10300 appears to define > the type based on the gcc version: > > #if __GNUC__ == 4 > typedef unsigned int __kernel_size_t; > typedef signed int __kernel_ssize_t; > #else > typedef unsigned long __kernel_size_t; > typedef signed long __kernel_ssize_t; > #endif > > while gcc defines it based on whether you are using a Linux targetted > gcc or a bare-metal one: > > gcc/config/mn10300/linux.h:#undef SIZE_TYPE > gcc/config/mn10300/mn10300.h:#undef SIZE_TYPE > gcc/config/mn10300/mn10300.h:#define SIZE_TYPE "unsigned int" > > I can think of two reasons why it went wrong here: > > a) You are using gcc-5.x, and the check in the kernel should be ">=" > rather than "==". We should probably fix that regardless > > b) You are using a bare-metal gcc rather than a Linux version. > I couldn't find an mn10300 gcc on kernel.org, which one do you use? I used this mn10300 compiler: https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.9.0/x86_64-gcc-4.9.0-nolibc_am33_2.0-linux.tar.xz Thanks, Fengguang -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
