# git rev-parse -q --verify e7140639b1de65bba435a6bd772d134901141f86^{commit}
e7140639b1de65bba435a6bd772d134901141f86
already have revision, skipping fetch
# git checkout -q -f -B kisskb e7140639b1de65bba435a6bd772d134901141f86
# git clean -qxdf
# < git log -1
# commit e7140639b1de65bba435a6bd772d134901141f86
# Author: Nathan Chancellor <natechancellor@gmail.com>
# Date:   Mon Feb 25 22:38:55 2019 -0700
# 
#     powerpc/xmon: Fix opcode being uninitialized in print_insn_powerpc
#     
#     When building with -Wsometimes-uninitialized, Clang warns:
#     
#       arch/powerpc/xmon/ppc-dis.c:157:7: warning: variable 'opcode' is used
#       uninitialized whenever 'if' condition is false
#       [-Wsometimes-uninitialized]
#         if (cpu_has_feature(CPU_FTRS_POWER9))
#             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#       arch/powerpc/xmon/ppc-dis.c:167:7: note: uninitialized use occurs here
#         if (opcode == NULL)
#             ^~~~~~
#       arch/powerpc/xmon/ppc-dis.c:157:3: note: remove the 'if' if its
#       condition is always true
#         if (cpu_has_feature(CPU_FTRS_POWER9))
#         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#       arch/powerpc/xmon/ppc-dis.c:132:38: note: initialize the variable
#       'opcode' to silence this warning
#         const struct powerpc_opcode *opcode;
#                                            ^
#                                             = NULL
#       1 warning generated.
#     
#     This warning seems to make no sense on the surface because opcode is set
#     to NULL right below this statement. However, there is a comma instead of
#     semicolon to end the dialect assignment, meaning that the opcode
#     assignment only happens in the if statement. Properly terminate that
#     line so that Clang no longer warns.
#     
#     Fixes: 5b102782c7f4 ("powerpc/xmon: Enable disassembly files (compilation changes)")
#     Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
#     Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /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 e7140639b1de65bba435a6bd772d134901141f86
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-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-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-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 0x8e0330) 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-gcc5
# Build took: 0:01:40.352042