Hi Aneesh, Thank you for the patch! Yet something to improve:
[auto build test ERROR on powerpc/next] [also build test ERROR on v4.16-rc3 next-20180228] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Aneesh-Kumar-K-V/Add-support-for-4PB-virtual-address-space-on-hash/20180301-032452 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-defconfig (attached as .config) compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=powerpc All errors (new ones prefixed by >>): arch/powerpc/mm/slice.c: In function 'slice_get_unmapped_area': >> arch/powerpc/mm/slice.c:616:1: error: the frame size of 2080 bytes is larger >> than 2048 bytes [-Werror=frame-larger-than=] } ^ arch/powerpc/mm/slice.c: In function 'is_hugepage_only_range': arch/powerpc/mm/slice.c:790:1: error: the frame size of 2080 bytes is larger than 2048 bytes [-Werror=frame-larger-than=] } ^ cc1: all warnings being treated as errors vim +616 arch/powerpc/mm/slice.c 3a8247cc2 Paul Mackerras 2008-06-18 597 d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 598 if (addr == -ENOMEM) d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 599 return -ENOMEM; d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 600 a4d362150 Aneesh Kumar K.V 2017-03-22 601 slice_range_to_mask(addr, len, &mask); d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 602 slice_dbg(" found potential area at 0x%lx\n", addr); d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 603 slice_print_mask(" mask", mask); d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 604 d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 605 convert: 4500a5c6a Aneesh Kumar K.V 2018-02-26 606 slice_mask_for_size(mm, MMU_PAGE_4K, &tmp_mask, high_limit); f3207c124 Aneesh Kumar K.V 2017-03-22 607 slice_andnot_mask(&mask, &good_mask); 4500a5c6a Aneesh Kumar K.V 2018-02-26 608 slice_andnot_mask(&mask, &tmp_mask); f3207c124 Aneesh Kumar K.V 2017-03-22 609 if (mask.low_slices || !bitmap_empty(mask.high_slices, SLICE_NUM_HIGH)) { d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 610 slice_convert(mm, mask, psize); 3a8247cc2 Paul Mackerras 2008-06-18 611 if (psize > MMU_PAGE_BASE) 84c3d4aae Benjamin Herrenschmidt 2008-07-16 612 on_each_cpu(slice_flush_segments, mm, 1); 3a8247cc2 Paul Mackerras 2008-06-18 613 } d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 614 return addr; d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 615 d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 @616 } d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 617 EXPORT_SYMBOL_GPL(slice_get_unmapped_area); d0f13e3c2 Benjamin Herrenschmidt 2007-05-08 618 :::::: The code at line 616 was first introduced by commit :::::: d0f13e3c20b6fb73ccb467bdca97fa7cf5a574cd [POWERPC] Introduce address space "slices" :::::: TO: Benjamin Herrenschmidt <b...@kernel.crashing.org> :::::: CC: Paul Mackerras <pau...@samba.org> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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