# git rev-parse -q --verify ce77a983b603b21b1b4b209fd264011f09064af5^{commit}
ce77a983b603b21b1b4b209fd264011f09064af5
already have revision, skipping fetch
# git checkout -q -f -B kisskb ce77a983b603b21b1b4b209fd264011f09064af5
# git clean -qxdf
# < git log -1
# commit ce77a983b603b21b1b4b209fd264011f09064af5
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Fri May 11 03:20:05 2018 +1000
# 
#     powerpc/powernv: process all OPAL event interrupts with kopald
#     
#     Using irq_work for processing OPAL event interrupts is not necessary.
#     irq_work is typically used to schedule work from NMI context, a
#     softirq may be more appropriate. However OPAL events are not
#     particularly performance or latency critical, so they can all be
#     invoked by kopald.
#     
#     This patch removes the irq_work queueing, and instead wakes up
#     kopald when there is an event to be processed. kopald processes
#     interrupts individually, enabling irqs and calling cond_resched
#     between each one to minimise latencies.
#     
#     Event handlers themselves should still use threaded handlers,
#     workqueues, etc. as necessary to avoid high interrupts-off latencies
#     within any single interrupt.
#     
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < git log --format=%s --max-count=1 ce77a983b603b21b1b4b209fd264011f09064af5
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+KVM_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pmac32_defconfig
# Added to kconfig CONFIG_VIRTUALIZATION=y
# Added to kconfig CONFIG_KVM=y
# Added to kconfig CONFIG_KVM_BOOK3S_32=m
# Added to kconfig 
# yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+KVM_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+KVM_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
In file included from /kisskb/src/sound/ppc/pmac.h:25:0,
                 from /kisskb/src/sound/ppc/awacs.c:29:
/kisskb/src/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init':
/kisskb/src/include/sound/control.h:223:9: warning: 'speaker_vol' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return _snd_ctl_add_slave(master, slave, 0);
         ^
/kisskb/src/sound/ppc/awacs.c:886:36: note: 'speaker_vol' was declared here
  struct snd_kcontrol *master_vol, *speaker_vol;
                                    ^
INFO: Uncompressed kernel (size 0x89e450) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x900000)
Completed OK
# rm -rf /kisskb/build/powerpc-next_pmac32_defconfig+KVM_powerpc-5.3
# Build took: 0:01:48.396173