# git rev-parse -q --verify b2ad81363f12261f8b6a97ed7723960ea6450f31^{commit}
b2ad81363f12261f8b6a97ed7723960ea6450f31
already have revision, skipping fetch
# git checkout -q -f -B kisskb b2ad81363f12261f8b6a97ed7723960ea6450f31
# git clean -qxdf
# < git log -1
# commit b2ad81363f12261f8b6a97ed7723960ea6450f31
# Merge: a2c48d98fc07 52f476a323f9
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat May 25 10:11:23 2019 -0700
# 
#     Merge tag 'libnvdimm-fixes-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
#     
#     Pull libnvdimm fixes from Dan Williams:
#     
#      - Fix a regression that disabled device-mapper dax support
#     
#      - Remove unnecessary hardened-user-copy overhead (>30%) for dax
#        read(2)/write(2).
#     
#      - Fix some compilation warnings.
#     
#     * tag 'libnvdimm-fixes-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
#       libnvdimm/pmem: Bypass CONFIG_HARDENED_USERCOPY overhead
#       dax: Arrange for dax_supported check to span multiple devices
#       libnvdimm: Fix compilation warnings with W=1
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 b2ad81363f12261f8b6a97ed7723960ea6450f31
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_ppc64le_defconfig+NO_KVM_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64le_defconfig
# Added to kconfig CONFIG_KVM_BOOK3S_64=n
# Added to kconfig CONFIG_KVM=n
# yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_ppc64le_defconfig+NO_KVM_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_ppc64le_defconfig+NO_KVM_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1658:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   return oldval == cmparg;
                 ^
/kisskb/src/kernel/futex.c:1633:6: note: 'oldval' was declared here
  int oldval, ret;
      ^
WARNING: vmlinux.o(.text+0x3474): Section mismatch in reference from the variable __boot_from_prom to the function .init.text:prom_init()
The function __boot_from_prom() references
the function __init prom_init().
This is often because __boot_from_prom lacks a __init 
annotation or the annotation of prom_init is wrong.

WARNING: vmlinux.o(.text+0x3734): Section mismatch in reference from the variable start_here_multiplatform to the function .init.text:early_setup()
The function start_here_multiplatform() references
the function __init early_setup().
This is often because start_here_multiplatform lacks a __init 
annotation or the annotation of early_setup is wrong.

WARNING: vmlinux.o(.text+0x3770): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel()
The function start_here_common() references
the function __init start_kernel().
This is often because start_here_common lacks a __init 
annotation or the annotation of start_kernel is wrong.

Completed OK
# rm -rf /kisskb/build/linus_ppc64le_defconfig+NO_KVM_ppc64le-gcc5
# Build took: 0:02:37.433189