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Date: Fri, 3 Nov 2017 18:19:48 +1100 From: Stephen Rothwell <sfr@...b.auug.org.au> To: Dan Williams <dan.j.williams@...el.com> Cc: Linux-Next Mailing List <linux-next@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Jan Kara <jack@...e.cz> Subject: linux-next: build failure after merge of the nvdimm tree Hi Dan, After merging the nvdimm tree, today's linux-next build (powerpc ppc64_defconfig) failed like this: In file included from arch/powerpc/kernel/asm-offsets.c:22:0: include/linux/mman.h: In function 'calc_vm_flag_bits': include/linux/mman.h:109:48: warning: division by zero [-Wdiv-by-zero] ((bit1) <= (bit2) ? ((x) & (bit1)) * ((bit2) / (bit1)) \ ^ include/linux/mman.h:133:9: note: in expansion of macro '_calc_vm_trans' _calc_vm_trans(flags, MAP_SYNC, VM_SYNC ); ^ cc1: all warnings being treated as errors and more like these ... Caused by commit ebd0722a382c ("mm: Define MAP_SYNC and VM_SYNC flags") Not all architectures use asm-generic/mman.h I have used the nvdimm tree from next-20171102 for today. -- Cheers, Stephen Rothwell
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