# 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/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 b2ad81363f12261f8b6a97ed7723960ea6450f31
# < make -s -j 48 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-  randconfig
KCONFIG_SEED=0xA529ACF2
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n
# Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n
# Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n
# yes \n | make -s -j 48 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 48 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-  
/kisskb/src/kernel/locking/lockdep.c:2821:13: warning: 'print_lock_trace' defined but not used [-Wunused-function]
 static void print_lock_trace(struct lock_trace *trace, unsigned int spaces)
             ^
/kisskb/src/mm/hmm.c: In function 'hmm_vma_walk_pud':
/kisskb/src/mm/hmm.c:782:28: warning: unused variable 'pfn' [-Wunused-variable]
   unsigned long i, npages, pfn;
                            ^
/kisskb/src/mm/hmm.c: In function 'hmm_range_snapshot':
/kisskb/src/mm/hmm.c:1027:19: warning: unused variable 'h' [-Wunused-variable]
    struct hstate *h = hstate_vma(vma);
                   ^
Completed OK
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_um-x86_64
# Build took: 0:05:13.617680