# git rev-parse -q --verify 4a3bb4200a5958d76cc26ebe4db4257efa56812b^{commit}
4a3bb4200a5958d76cc26ebe4db4257efa56812b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 4a3bb4200a5958d76cc26ebe4db4257efa56812b
# git clean -qxdf
# < git log -1
# commit 4a3bb4200a5958d76cc26ebe4db4257efa56812b
# Merge: eceae1e7acae c1dec343d7ab
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Sep 2 10:32:06 2021 -0700
# 
#     Merge tag 'dma-mapping-5.15' of git://git.infradead.org/users/hch/dma-mapping
#     
#     Pull dma-mapping updates from Christoph Hellwig:
#     
#      - fix debugfs initialization order (Anthony Iliopoulos)
#     
#      - use memory_intersects() directly (Kefeng Wang)
#     
#      - allow to return specific errors from ->map_sg (Logan Gunthorpe,
#        Martin Oliveira)
#     
#      - turn the dma_map_sg return value into an unsigned int (me)
#     
#      - provide a common global coherent pool іmplementation (me)
#     
#     * tag 'dma-mapping-5.15' of git://git.infradead.org/users/hch/dma-mapping: (31 commits)
#       hexagon: use the generic global coherent pool
#       dma-mapping: make the global coherent pool conditional
#       dma-mapping: add a dma_init_global_coherent helper
#       dma-mapping: simplify dma_init_coherent_memory
#       dma-mapping: allow using the global coherent pool for !ARM
#       ARM/nommu: use the generic dma-direct code for non-coherent devices
#       dma-direct: add support for dma_coherent_default_memory
#       dma-mapping: return an unsigned int from dma_map_sg{,_attrs}
#       dma-mapping: disallow .map_sg operations from returning zero on error
#       dma-mapping: return error code from dma_dummy_map_sg()
#       x86/amd_gart: don't set failed sg dma_address to DMA_MAPPING_ERROR
#       x86/amd_gart: return error code from gart_map_sg()
#       xen: swiotlb: return error code from xen_swiotlb_map_sg()
#       parisc: return error code from .map_sg() ops
#       sparc/iommu: don't set failed sg dma_address to DMA_MAPPING_ERROR
#       sparc/iommu: return error codes from .map_sg() ops
#       s390/pci: don't set failed sg dma_address to DMA_MAPPING_ERROR
#       s390/pci: return error code from s390_dma_map_sg()
#       powerpc/iommu: don't set failed sg dma_address to DMA_MAPPING_ERROR
#       powerpc/iommu: return error code from .map_sg() ops
#       ...
# < /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 4a3bb4200a5958d76cc26ebe4db4257efa56812b
# < make -s -j 24 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 24 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-  help
# make -s -j 24 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-  olddefconfig
# make -s -j 24 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: 0:03:07.192465