# git rev-parse -q --verify d2b2250c3e565038a746b5db1de2af20a6468f02^{commit}
d2b2250c3e565038a746b5db1de2af20a6468f02
already have revision, skipping fetch
# git checkout -q -f -B kisskb d2b2250c3e565038a746b5db1de2af20a6468f02
# git clean -qxdf
# < git log -1
# commit d2b2250c3e565038a746b5db1de2af20a6468f02
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Jun 11 11:55:04 2018 -0700
# 
#     ia64: disable CONFIG_PERFMON at least for now
#     
#     Al noted that the semantics of the ia64 perfmon mmap() is really wrong,
#     and can cause serious VM problems.  Before we look at whether it needs
#     to be fixed, let's see if anybody even uses it, and mark it broken.  It
#     may be that we can just remove the code entirely.
#     
#     Reported-by: Alexander Viro <viro@zeniv.linux.org.uk>
#     Acked-by: Matthew Wilcox <willy@infradead.org>
#     Acked-by: Stephane Eranian <eranian@google.com>
#     Cc: Tony Luck <tony.luck@intel.com>
#     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
# < git log --format=%s --max-count=1 d2b2250c3e565038a746b5db1de2af20a6468f02
# < 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/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
Completed OK
# rm -rf /kisskb/build/linus_or1ksim_defconfig_or32
# Build took: 0:00:11.556180