On Sun, Oct 28, 2018 at 10:13 PM Changbin Du <changbin.du@xxxxxxxxx> wrote: > > With '-Og' optimization level, GCC would not optimize a count for a loop > as a constant value. But BUILD_BUG_ON() only accept compile-time constant > values. Let's use __fix_to_virt() to avoid the error. > > arch/arm/mm/mmu.o: In function `fix_to_virt': > /home/changbin/work/linux/./include/asm-generic/fixmap.h:31: undefined reference to `__compiletime_assert_31' > Makefile:1051: recipe for target 'vmlinux' failed > make: *** [vmlinux] Error 1 > > Signed-off-by: Changbin Du <changbin.du@xxxxxxxxx> > Acked-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> > --- Applied to linux-kbuild -- Best Regards Masahiro Yamada
