# 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/mips-linux/bin/mips-linux-gcc --version
# < git log --format=%s --max-count=1 cff229491af5df946781edfbeafd43e9cf66a3b4
# < make -s -j 8 ARCH=mips O=/kisskb/build/linus_mips-defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-  defconfig
# make -s -j 8 ARCH=mips O=/kisskb/build/linus_mips-defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-  
/kisskb/src/arch/mips/vdso/Makefile:38: MIPS VDSO requires binutils >= 2.25
/kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/kisskb/src/kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/mips/vdso/Makefile:38: MIPS VDSO requires binutils >= 2.25
/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:148:32: warning: 'levelspread[<Uf960>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:96:6: note: 'levelspread[<Uf960>]' was declared here
/kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write':
/kisskb/src/drivers/base/regmap/regmap.c:1833:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2511:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/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]
/kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq':
/kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here
/kisskb/src/arch/mips/vdso/Makefile:38: MIPS VDSO requires binutils >= 2.25
/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]
FIT description: Linux 4.19.0-gcff229491af5
Created:         Tue Oct 23 14:49:05 2018
 Image 0 (kernel@0)
  Description:  Linux 4.19.0-gcff229491af5
  Created:      Tue Oct 23 14:49:05 2018
  Type:         Kernel Image
  Compression:  gzip compressed
  Data Size:    4276508 Bytes = 4176.28 KiB = 4.08 MiB
  Architecture: MIPS
  OS:           Linux
  Load Address: 0x80100000
  Entry Point:  0x807f9030
  Hash algo:    sha1
  Hash value:   0d07d443b4c5844bd698af994c4894f57a30ea1b
 Image 1 (fdt@boston)
  Description:  img,boston Device Tree
  Created:      Tue Oct 23 14:49:05 2018
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    3668 Bytes = 3.58 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   569c37cc891ce1e1f3a193cb41cc691a5d2debb5
 Image 2 (fdt@ni169445)
  Description:  NI 169445 device tree
  Created:      Tue Oct 23 14:49:05 2018
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    1871 Bytes = 1.83 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   51b89b31605ee62038c8468c429af091dfc75ec7
 Image 3 (fdt@xilfpga)
  Description:  MIPSfpga (xilfpga) Device Tree
  Created:      Tue Oct 23 14:49:05 2018
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    2708 Bytes = 2.64 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   509ce58e44c561d54539e64e9d4b47054e696fc6
 Default Configuration: 'conf@default'
 Configuration 0 (conf@default)
  Description:  Generic Linux kernel
  Kernel:       kernel@0
 Configuration 1 (conf@boston)
  Description:  Boston Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@boston
 Configuration 2 (conf@ni169445)
  Description:  NI 169445 Linux Kernel
  Kernel:       kernel@0
  FDT:          fdt@ni169445
 Configuration 3 (conf@xilfpga)
  Description:  MIPSfpga Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@xilfpga
Completed OK
# rm -rf /kisskb/build/linus_mips-defconfig_mips
# Build took: 0:02:27.618275