# git rev-parse -q --verify cff229491af5df946781edfbeafd43e9cf66a3b4^{commit}
cff229491af5df946781edfbeafd43e9cf66a3b4
already have revision, skipping fetch
# git checkout -q -f -B kisskb cff229491af5df946781edfbeafd43e9cf66a3b4
# git clean -qxdf
# < git log -1
# commit cff229491af5df946781edfbeafd43e9cf66a3b4
# Merge: 13775dacca5c b9fd04262a8a
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Oct 22 18:16:03 2018 +0100
# 
#     Merge tag 'dma-mapping-4.20' of git://git.infradead.org/users/hch/dma-mapping
#     
#     Pull dma mapping updates from Christoph Hellwig:
#      "First batch of dma-mapping changes for 4.20.
#     
#       There will be a second PR as some big changes were only applied just
#       before the end of the merge window, and I want to give them a few more
#       days in linux-next.
#     
#       Summary:
#     
#        - mostly more consolidation of the direct mapping code, including
#          converting over hexagon, and merging the coherent and non-coherent
#          code into a single dma_map_ops instance (me)
#     
#        - cleanups for the dma_configure/dma_unconfigure callchains (me)
#     
#        - better handling of dma_masks in odd setups (me, Alexander Duyck)
#     
#        - better debugging of passing vmalloc address to the DMA API (Stephen
#          Boyd)
#     
#        - CMA command line parsing fix (He Zhe)"
#     
#     * tag 'dma-mapping-4.20' of git://git.infradead.org/users/hch/dma-mapping: (27 commits)
#       dma-direct: respect DMA_ATTR_NO_WARN
#       dma-mapping: translate __GFP_NOFAIL to DMA_ATTR_NO_WARN
#       dma-direct: document the zone selection logic
#       dma-debug: Check for drivers mapping invalid addresses in dma_map_single()
#       dma-direct: fix return value of dma_direct_supported
#       dma-mapping: move dma_default_get_required_mask under ifdef
#       dma-direct: always allow dma mask <= physiscal memory size
#       dma-direct: implement complete bus_dma_mask handling
#       dma-direct: refine dma_direct_alloc zone selection
#       dma-direct: add an explicit dma_direct_get_required_mask
#       dma-mapping: make the get_required_mask method available unconditionally
#       unicore32: remove swiotlb support
#       Revert "dma-mapping: clear dev->dma_ops in arch_teardown_dma_ops"
#       dma-mapping: support non-coherent devices in dma_common_get_sgtable
#       dma-mapping: consolidate the dma mmap implementations
#       dma-mapping: merge direct and noncoherent ops
#       dma-mapping: move the dma_coherent flag to struct device
#       MIPS: don't select DMA_MAYBE_COHERENT from DMA_PERDEV_COHERENT
#       dma-mapping: add the missing ARCH_HAS_SYNC_DMA_FOR_CPU_ALL declaration
#       dma-mapping: fix panic caused by passing empty cma command line argument
#       ...
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version
# < git log --format=%s --max-count=1 cff229491af5df946781edfbeafd43e9cf66a3b4
# < make -s -j 10 ARCH=arm O=/kisskb/build/linus_pxa3xx_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  pxa3xx_defconfig
# make -s -j 10 ARCH=arm O=/kisskb/build/linus_pxa3xx_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:185:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:129:33: warning: 'levelspread[<Uc000>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:96:6: note: 'levelspread[<Uc000>]' was declared here
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:341:21: note: 'pdeo' was declared here
/kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/linus_pxa3xx_defconfig_arm
# Build took: 0:01:11.281821