# git rev-parse -q --verify 25d8d4eecace9de5a6a2193e4df1917afbdd3052^{commit}
25d8d4eecace9de5a6a2193e4df1917afbdd3052
already have revision, skipping fetch
# git checkout -q -f -B kisskb 25d8d4eecace9de5a6a2193e4df1917afbdd3052
# git clean -qxdf
# < git log -1
# commit 25d8d4eecace9de5a6a2193e4df1917afbdd3052
# Merge: 60e76bb8a4e4 a7aaa2f26bfd
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Aug 7 10:33:50 2020 -0700
# 
#     Merge tag 'powerpc-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
#     
#     Pull powerpc updates from Michael Ellerman:
#     
#      - Add support for (optionally) using queued spinlocks & rwlocks.
#     
#      - Support for a new faster system call ABI using the scv instruction on
#        Power9 or later.
#     
#      - Drop support for the PROT_SAO mmap/mprotect flag as it will be
#        unsupported on Power10 and future processors, leaving us with no way
#        to implement the functionality it requests. This risks breaking
#        userspace, though we believe it is unused in practice.
#     
#      - A bug fix for, and then the removal of, our custom stack expansion
#        checking. We now allow stack expansion up to the rlimit, like other
#        architectures.
#     
#      - Remove the remnants of our (previously disabled) topology update
#        code, which tried to react to NUMA layout changes on virtualised
#        systems, but was prone to crashes and other problems.
#     
#      - Add PMU support for Power10 CPUs.
#     
#      - A change to our signal trampoline so that we don't unbalance the link
#        stack (branch return predictor) in the signal delivery path.
#     
#      - Lots of other cleanups, refactorings, smaller features and so on as
#        usual.
#     
#     Thanks to: Abhishek Goel, Alastair D'Silva, Alexander A. Klimov, Alexey
#     Kardashevskiy, Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anju
#     T Sudhakar, Anton Blanchard, Arnd Bergmann, Athira Rajeev, Balamuruhan
#     S, Bharata B Rao, Bill Wendling, Bin Meng, Cédric Le Goater, Chris
#     Packham, Christophe Leroy, Christoph Hellwig, Daniel Axtens, Dan
#     Williams, David Lamparter, Desnes A. Nunes do Rosario, Erhard F., Finn
#     Thain, Frederic Barrat, Ganesh Goudar, Gautham R. Shenoy, Geoff Levand,
#     Greg Kurz, Gustavo A. R. Silva, Hari Bathini, Harish, Imre Kaloz, Joel
#     Stanley, Joe Perches, John Crispin, Jordan Niethe, Kajol Jain, Kamalesh
#     Babulal, Kees Cook, Laurent Dufour, Leonardo Bras, Li RongQing, Madhavan
#     Srinivasan, Mahesh Salgaonkar, Mark Cave-Ayland, Michal Suchanek, Milton
#     Miller, Mimi Zohar, Murilo Opsfelder Araujo, Nathan Chancellor, Nathan
#     Lynch, Naveen N. Rao, Nayna Jain, Nicholas Piggin, Oliver O'Halloran,
#     Palmer Dabbelt, Pedro Miraglia Franco de Carvalho, Philippe Bergheaud,
#     Pingfan Liu, Pratik Rajesh Sampat, Qian Cai, Qinglang Miao, Randy
#     Dunlap, Ravi Bangoria, Sachin Sant, Sam Bobroff, Sandipan Das, Santosh
#     Sivaraj, Satheesh Rajendran, Shirisha Ganta, Sourabh Jain, Srikar
#     Dronamraju, Stan Johnson, Stephen Rothwell, Thadeu Lima de Souza
#     Cascardo, Thiago Jung Bauermann, Tom Lane, Vaibhav Jain, Vladis Dronov,
#     Wei Yongjun, Wen Xiong, YueHaibing.
#     
#     * tag 'powerpc-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (337 commits)
#       selftests/powerpc: Fix pkey syscall redefinitions
#       powerpc: Fix circular dependency between percpu.h and mmu.h
#       powerpc/powernv/sriov: Fix use of uninitialised variable
#       selftests/powerpc: Skip vmx/vsx/tar/etc tests on older CPUs
#       powerpc/40x: Fix assembler warning about r0
#       powerpc/papr_scm: Add support for fetching nvdimm 'fuel-gauge' metric
#       powerpc/papr_scm: Fetch nvdimm performance stats from PHYP
#       cpuidle: pseries: Fixup exit latency for CEDE(0)
#       cpuidle: pseries: Add function to parse extended CEDE records
#       cpuidle: pseries: Set the latency-hint before entering CEDE
#       selftests/powerpc: Fix online CPU selection
#       powerpc/perf: Consolidate perf_callchain_user_[64|32]()
#       powerpc/pseries/hotplug-cpu: Remove double free in error path
#       powerpc/pseries/mobility: Add pr_debug() for device tree changes
#       powerpc/pseries/mobility: Set pr_fmt()
#       powerpc/cacheinfo: Warn if cache object chain becomes unordered
#       powerpc/cacheinfo: Improve diagnostics about malformed cache lists
#       powerpc/cacheinfo: Use name@unit instead of full DT path in debug messages
#       powerpc/cacheinfo: Set pr_fmt()
#       powerpc: fix function annotations to avoid section mismatch warnings with gcc-10
#       ...
# < /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 25d8d4eecace9de5a6a2193e4df1917afbdd3052
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pseries_le_defconfig+NO_NUMA_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_le_defconfig
# Added to kconfig CONFIG_NUMA=n
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pseries_le_defconfig+NO_NUMA_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pseries_le_defconfig+NO_NUMA_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pseries_le_defconfig+NO_NUMA_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/kernel/ptrace/ptrace-view.c: In function 'pkey_get':
/kisskb/src/arch/powerpc/kernel/ptrace/ptrace-view.c:473:6: error: unused variable 'ret' [-Werror=unused-variable]
  int ret;
      ^
cc1: all warnings being treated as errors
make[4]: *** [/kisskb/src/scripts/Makefile.build:281: arch/powerpc/kernel/ptrace/ptrace-view.o] Error 1
make[3]: *** [/kisskb/src/scripts/Makefile.build:497: arch/powerpc/kernel/ptrace] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:497: arch/powerpc/kernel] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1781: arch/powerpc] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:185: __sub-make] Error 2
Command 'make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pseries_le_defconfig+NO_NUMA_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_pseries_le_defconfig+NO_NUMA_powerpc-gcc5
# Build took: 0:02:44.782407