# git rev-parse -q --verify c5325f33d5f67f7bb5497b9f2faab0562b8c3fa2^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git next-test
error: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify c5325f33d5f67f7bb5497b9f2faab0562b8c3fa2^{commit}
c5325f33d5f67f7bb5497b9f2faab0562b8c3fa2
# git checkout -q -f -B kisskb c5325f33d5f67f7bb5497b9f2faab0562b8c3fa2
# git clean -qxdf
# < git log -1
# commit c5325f33d5f67f7bb5497b9f2faab0562b8c3fa2
# Author: Paul Mackerras <paulus@ozlabs.org>
# Date:   Sat Oct 20 20:54:55 2018 +1100
# 
#     KVM: PPC: Use exported tb_to_ns() function in decrementer emulation
#     
#     This changes the KVM code that emulates the decrementer function to do
#     the conversion of decrementer values to time intervals in nanoseconds
#     by calling the tb_to_ns() function exported by the powerpc timer code,
#     in preference to open-coded arithmetic using values from the
#     decrementer_clockevent struct.  Similarly, the HV-KVM code that did
#     the same conversion using arithmetic on tb_ticks_per_sec also now
#     uses tb_to_ns().
#     
#     Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < git log --format=%s --max-count=1 c5325f33d5f67f7bb5497b9f2faab0562b8c3fa2
# < make -s -j 48 ARCH=x86_64 O=/kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  allnoconfig
# make -s -j 48 ARCH=x86_64 O=/kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:185:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/x86/kernel/apic/io_apic.c: In function 'mp_map_pin_to_irq':
/kisskb/src/arch/x86/kernel/apic/io_apic.c:1034:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap':
/kisskb/src/arch/x86/kernel/e820.c:651:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64
# Build took: 0:00:18.237827