# git rev-parse -q --verify 9c2ef23e4dae122d2b18e834d90f8bd4dda48fe6^{commit}
9c2ef23e4dae122d2b18e834d90f8bd4dda48fe6
already have revision, skipping fetch
# git checkout -q -f -B kisskb 9c2ef23e4dae122d2b18e834d90f8bd4dda48fe6
# git clean -qxdf
# < git log -1
# commit 9c2ef23e4dae122d2b18e834d90f8bd4dda48fe6
# Merge: fa16199500c8 53f1d31708f6
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Apr 3 10:49:38 2021 -0700
# 
#     Merge tag 'powerpc-5.12-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
#     
#     Pull powerpc fixes from Michael Ellerman:
#      "Fix a bug on pseries where spurious wakeups from H_PROD would prevent
#       partition migration from succeeding.
#     
#       Fix oopses seen in pcpu_alloc(), caused by parallel faults of the
#       percpu mapping causing us to corrupt the protection key used for the
#       mapping, and cause a fatal key fault.
#     
#       Thanks to Aneesh Kumar K.V, Murilo Opsfelder Araujo, and Nathan Lynch"
#     
#     * tag 'powerpc-5.12-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
#       powerpc/mm/book3s64: Use the correct storage key value when calling H_PROTECT
#       powerpc/pseries/mobility: handle premature return from H_JOIN
#       powerpc/pseries/mobility: use struct for shared state
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 9c2ef23e4dae122d2b18e834d90f8bd4dda48fe6
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  randconfig
KCONFIG_SEED=0x43921A90
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  help
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  olddefconfig
.config:6849:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
libbpf.c:47:20: fatal error: libelf.h: No such file or directory
compilation terminated.
make[6]: *** [/kisskb/src/tools/build/Makefile.build:97: /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4/kernel/bpf/preload/staticobjs/libbpf.o] Error 1
make[5]: *** [Makefile:158: /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4/kernel/bpf/preload/staticobjs/libbpf-in.o] Error 2
make[4]: *** [/kisskb/src/kernel/bpf/preload/Makefile:11: kernel/bpf/preload/libbpf.a] Error 2
make[3]: *** [/kisskb/src/scripts/Makefile.build:514: kernel/bpf/preload] Error 2
make[2]: *** [/kisskb/src/scripts/Makefile.build:514: kernel/bpf] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1851: kernel] Error 2
make[1]: *** Waiting for unfinished jobs....
/kisskb/src/fs/io_uring.c: In function '__io_complete_rw':
/kisskb/src/fs/io_uring.c:2509:48: error: implicit declaration of function 'io_rw_should_reissue' [-Werror=implicit-function-declaration]
  if ((res == -EAGAIN || res == -EOPNOTSUPP) && io_rw_should_reissue(req)) {
                                                ^
cc1: some warnings being treated as errors
make[2]: *** [/kisskb/src/scripts/Makefile.build:271: fs/io_uring.o] Error 1
make[1]: *** [/kisskb/src/Makefile:1851: fs] Error 2
make: *** [Makefile:215: __sub-make] Error 2
Command 'make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4
# Build took: 0:05:22.629955