# git rev-parse -q --verify 5468e7812866a03e6f9410104ef7661370ca804e^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-kbuild.git for-next
remote: warning: multi-pack bitmap is missing required reverse index        
# git rev-parse -q --verify 5468e7812866a03e6f9410104ef7661370ca804e^{commit}
5468e7812866a03e6f9410104ef7661370ca804e
# git checkout -q -f -B kisskb 5468e7812866a03e6f9410104ef7661370ca804e
# git clean -qxdf
# < git log -1
# commit 5468e7812866a03e6f9410104ef7661370ca804e
# Author: Masahiro Yamada <masahiroy@kernel.org>
# Date:   Thu Jul 18 03:28:19 2024 +0900
# 
#     Makefile: add comment to discourage tools/* addition for kernel builds
#     
#     Kbuild provides scripts/Makefile.host to build host programs used for
#     building the kernel. Unfortunately, there are two exceptions that opt
#     out of Kbuild. The build system under tools/ is a cheesy replica, and
#     cause issues. I was recently poked about a problem in the tools build
#     system, which I do not maintain (and nobody maintains). [1]
#     
#     Without a comment, people might believe this is the right location
#     because that is where objtool lives, even if a more robust Kbuild
#     syntax satisfies their needs. [2]
#     
#     [1]: https://lore.kernel.org/linux-kbuild/ZnIYWBgrJ-IJtqK8@google.com/T/#m8ece130dd0e23c6f2395ed89070161948dee8457
#     [2]: https://lore.kernel.org/all/20240618200501.GA1611012@google.com/
#     
#     Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
#     Acked-by: Nicolas Schier <nicolas@fjasle.eu>
#     Reviewed-by: Brian Norris <briannorris@chromium.org>
#     Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
# < /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 5468e7812866a03e6f9410104ef7661370ca804e
# make -s -j 40 ARCH=powerpc O=/kisskb/build/kbuild_pseries_le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_le_defconfig
Using /kisskb/src/arch/powerpc/configs/ppc64_defconfig as base
Merging /kisskb/src/arch/powerpc/configs/le.config
Merging /kisskb/src/arch/powerpc/configs/guest.config
Value of CONFIG_VIRTIO_BLK is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config:
Previous value: CONFIG_VIRTIO_BLK=m
New value: CONFIG_VIRTIO_BLK=y

Value of CONFIG_SCSI_VIRTIO is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config:
Previous value: CONFIG_SCSI_VIRTIO=m
New value: CONFIG_SCSI_VIRTIO=y

Value of CONFIG_VIRTIO_NET is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config:
Previous value: CONFIG_VIRTIO_NET=m
New value: CONFIG_VIRTIO_NET=y

Value of CONFIG_VIRTIO_CONSOLE is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config:
Previous value: CONFIG_VIRTIO_CONSOLE=m
New value: CONFIG_VIRTIO_CONSOLE=y

Value of CONFIG_VIRTIO_PCI is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config:
Previous value: CONFIG_VIRTIO_PCI=m
New value: CONFIG_VIRTIO_PCI=y

Value of CONFIG_VIRTIO_BALLOON is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config:
Previous value: CONFIG_VIRTIO_BALLOON=m
New value: CONFIG_VIRTIO_BALLOON=y

Value of CONFIG_VHOST_NET is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config:
Previous value: CONFIG_VHOST_NET=m
New value: CONFIG_VHOST_NET=y

Value of CONFIG_IBMVETH is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config:
Previous value: CONFIG_IBMVETH=m
New value: CONFIG_IBMVETH=y

Value of CONFIG_IBMVNIC is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config:
Previous value: CONFIG_IBMVNIC=m
New value: CONFIG_IBMVNIC=y

Merging /kisskb/src/arch/powerpc/configs/kvm_guest.config
#
# merged configuration written to .config (needs make)
#
# < make -s -j 40 ARCH=powerpc O=/kisskb/build/kbuild_pseries_le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 40 ARCH=powerpc O=/kisskb/build/kbuild_pseries_le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 40 ARCH=powerpc O=/kisskb/build/kbuild_pseries_le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Completed OK
# rm -rf /kisskb/build/kbuild_pseries_le_defconfig_powerpc-gcc5
# Build took: 0:02:00.083126