# git rev-parse -q --verify e2b745f469ec0f3165ba5ffaee3ce40f98d77878^{commit}
e2b745f469ec0f3165ba5ffaee3ce40f98d77878
already have revision, skipping fetch
# git checkout -q -f -B kisskb e2b745f469ec0f3165ba5ffaee3ce40f98d77878
# git clean -qxdf
# < git log -1
# commit e2b745f469ec0f3165ba5ffaee3ce40f98d77878
# Merge: 12133258d7fe 8270f3a11cee
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Jan 6 11:47:26 2019 -0800
# 
#     Merge tag 'dma-mapping-4.21-1' of git://git.infradead.org/users/hch/dma-mapping
#     
#     Pull dma-mapping fixes from Christoph Hellwig:
#      "Fix various regressions introduced in this cycles:
#     
#        - fix dma-debug tracking for the map_page / map_single
#          consolidatation
#     
#        - properly stub out DMA mapping symbols for !HAS_DMA builds to avoid
#          link failures
#     
#        - fix AMD Gart direct mappings
#     
#        - setup the dma address for no kernel mappings using the remap
#          allocator"
#     
#     * tag 'dma-mapping-4.21-1' of git://git.infradead.org/users/hch/dma-mapping:
#       dma-direct: fix DMA_ATTR_NO_KERNEL_MAPPING for remapped allocations
#       x86/amd_gart: fix unmapping of non-GART mappings
#       dma-mapping: remove a few unused exports
#       dma-mapping: properly stub out the DMA API for !CONFIG_HAS_DMA
#       dma-mapping: remove dmam_{declare,release}_coherent_memory
#       dma-mapping: implement dmam_alloc_coherent using dmam_alloc_attrs
#       dma-mapping: implement dma_map_single_attrs using dma_map_page_attrs
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 e2b745f469ec0f3165ba5ffaee3ce40f98d77878
# < make -s -j 120 ARCH=x86 O=/kisskb/build/linus_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  x86_64_defconfig
# make -s -j 120 ARCH=x86 O=/kisskb/build/linus_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
Completed OK
# rm -rf /kisskb/build/linus_x86_64_defconfig_x86_64-gcc8
# Build took: 0:01:08.800699