On Wed, Jul 24, 2013 at 05:57:52AM +0100, Ben Hutchings wrote: > On Wed, 2013-07-24 at 00:36 -0400, Zhouping Liu wrote: > > Hi all, > > > > I hit the following compiling error on latest stable tree with linux-3.4.y branch on s390x machine: > > > > ---------------- snip --------------- > > CHK include/linux/version.h > > CHK include/generated/utsrelease.h > > CALL scripts/checksyscalls.sh > > CHK include/generated/compile.h > > CC mm/memory.o > > mm/memory.c: In function ‘vm_iomap_memory’: > > mm/memory.c:2375:2: error: implicit declaration of function ‘io_remap_pfn_range’ [-Werror=implicit-function-declaration] > > return io_remap_pfn_range(vma, vma->vm_start, pfn, vm_len, vma->vm_page_prot); > > ^ > > cc1: some warnings being treated as errors > > make[1]: *** [mm/memory.o] Error 1 > > make: *** [mm] Error 2 > > > > I checked codes, and find the function 'io_remap_pfn_range' in s390x was introduced by commit cd24834130a since 3.8-rc1, > > but it didn't be backported to 3.4-stable yet, how to deal with this? > > This is what I used in 3.2; it might work for 3.4 as well. <snip> Zhouping, can you test this patch from Ben and let me know if it solves the problem for you or not? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html