# git rev-parse -q --verify 80871482fd5cb1cb396ea232237a7d9c540854f9^{commit}
80871482fd5cb1cb396ea232237a7d9c540854f9
already have revision, skipping fetch
# git checkout -q -f -B kisskb 80871482fd5cb1cb396ea232237a7d9c540854f9
# git clean -qxdf
# < git log -1
# commit 80871482fd5cb1cb396ea232237a7d9c540854f9
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Apr 29 09:51:29 2019 -0700
# 
#     x86: make ZERO_PAGE() at least parse its argument
#     
#     This doesn't really do anything, but at least we now parse teh
#     ZERO_PAGE() address argument so that we'll catch the most obvious errors
#     in usage next time they'll happen.
#     
#     See commit 6a5c5d26c4c6 ("rdma: fix build errors on s390 and MIPS due to
#     bad ZERO_PAGE use") what happens when we don't have any use of the macro
#     argument at all.
#     
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/or1k-linux-5.4.0-20170218/or1k-linux/bin/or1k-linux-gcc --version
# < /opt/cross/kisskb/or1k-linux-5.4.0-20170218/or1k-linux/bin/or1k-linux-ld --version
# < git log --format=%s --max-count=1 80871482fd5cb1cb396ea232237a7d9c540854f9
# < make -s -j 120 ARCH=openrisc O=/kisskb/build/linus_or1ksim_defconfig_or32 CROSS_COMPILE=/opt/cross/kisskb/or1k-linux-5.4.0-20170218/or1k-linux/bin/or1k-linux-  or1ksim_defconfig
# make -s -j 120 ARCH=openrisc O=/kisskb/build/linus_or1ksim_defconfig_or32 CROSS_COMPILE=/opt/cross/kisskb/or1k-linux-5.4.0-20170218/or1k-linux/bin/or1k-linux-  
/kisskb/src/mm/mprotect.c: In function 'change_pte_range':
/kisskb/src/mm/mprotect.c:42:20: warning: unused variable 'mm' [-Wunused-variable]
  struct mm_struct *mm = vma->vm_mm;
                    ^
Completed OK
# rm -rf /kisskb/build/linus_or1ksim_defconfig_or32
# Build took: 0:00:14.332997