# git rev-parse -q --verify c3d8f220d01220a5b253e422be407d068dc65511^{commit}
c3d8f220d01220a5b253e422be407d068dc65511
already have revision, skipping fetch
# git checkout -q -f -B kisskb c3d8f220d01220a5b253e422be407d068dc65511
# git clean -qxdf
# < git log -1
# commit c3d8f220d01220a5b253e422be407d068dc65511
# Merge: dd105d64a0c6 510bc3cb1ddc
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Aug 22 10:22:44 2020 -0700
# 
#     Merge tag 'kbuild-fixes-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
#     
#     Pull Kbuild fixes from Masahiro Yamada:
#     
#      - move -Wsign-compare warning from W=2 to W=3
#     
#      - fix the keyword _restrict to __restrict in genksyms
#     
#      - fix more bugs in qconf
#     
#     * tag 'kbuild-fixes-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
#       kconfig: qconf: replace deprecated QString::sprintf() with QTextStream
#       kconfig: qconf: remove redundant help in the info view
#       kconfig: qconf: remove qInfo() to get back Qt4 support
#       kconfig: qconf: remove unused colNr
#       kconfig: qconf: fix the popup menu in the ConfigInfoView window
#       kconfig: qconf: fix signal connection to invalid slots
#       genksyms: keywords: Use __restrict not _restrict
#       kbuild: remove redundant patterns in filter/filter-out
#       extract-cert: add static to local data
#       Makefile.extrawarn: Move sign-compare from W=2 to W=3
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 c3d8f220d01220a5b253e422be407d068dc65511
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_bcm2835_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  bcm2835_defconfig
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_bcm2835_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  help
# make -s -j 48 ARCH=arm O=/kisskb/build/linus_bcm2835_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  olddefconfig
# make -s -j 48 ARCH=arm O=/kisskb/build/linus_bcm2835_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  
In file included from /kisskb/src/kernel/rcu/update.c:591:0:
/kisskb/src/kernel/rcu/tasks.h:593:13: warning: 'show_rcu_tasks_classic_gp_kthread' defined but not used [-Wunused-function]
 static void show_rcu_tasks_classic_gp_kthread(void) { }
             ^
Completed OK
# rm -rf /kisskb/build/linus_bcm2835_defconfig_arm-gcc4.9
# Build took: 0:01:51.444515