# git rev-parse -q --verify 8bc086899816214fbc6047c9c7e15fcab49552bf^{commit}
8bc086899816214fbc6047c9c7e15fcab49552bf
already have revision, skipping fetch
# git checkout -q -f -B kisskb 8bc086899816214fbc6047c9c7e15fcab49552bf
# git clean -qxdf
# < git log -1
# commit 8bc086899816214fbc6047c9c7e15fcab49552bf
# Author: Ben Hutchings <ben@decadent.org.uk>
# Date:   Sun Mar 17 01:17:56 2019 +0000
# 
#     powerpc/mm: Only define MAX_PHYSMEM_BITS in SPARSEMEM configurations
#     
#     MAX_PHYSMEM_BITS only needs to be defined if CONFIG_SPARSEMEM is
#     enabled, and that was the case before commit 4ffe713b7587
#     ("powerpc/mm: Increase the max addressable memory to 2PB").
#     
#     On 32-bit systems, where CONFIG_SPARSEMEM is not enabled, we now
#     define it as 46.  That is larger than the real number of physical
#     address bits, and breaks calculations in zsmalloc:
#     
#       mm/zsmalloc.c:130:49: warning: right shift count is negative
#         MAX(32, (ZS_MAX_PAGES_PER_ZSPAGE << PAGE_SHIFT >> OBJ_INDEX_BITS))
#                                                        ^~
#       ...
#       mm/zsmalloc.c:253:21: error: variably modified 'size_class' at file scope
#         struct size_class *size_class[ZS_SIZE_CLASSES];
#                            ^~~~~~~~~~
#     
#     Fixes: 4ffe713b7587 ("powerpc/mm: Increase the max addressable memory to 2PB")
#     Cc: stable@vger.kernel.org # v4.20+
#     Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
#     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 8bc086899816214fbc6047c9c7e15fcab49552bf
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allnoconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  allnoconfig
# make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allnoconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_powerpc-allnoconfig_powerpc-gcc5
# Build took: 0:00:15.956574