# git rev-parse -q --verify 2c85ebc57b3e1817b6ce1a6b703928e113a90442^{commit}
2c85ebc57b3e1817b6ce1a6b703928e113a90442
already have revision, skipping fetch
# git checkout -q -f -B kisskb 2c85ebc57b3e1817b6ce1a6b703928e113a90442
# git clean -qxdf
# < git log -1
# commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Dec 13 14:41:30 2020 -0800
# 
#     Linux 5.10
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 2c85ebc57b3e1817b6ce1a6b703928e113a90442
# < make -s -j 8 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 allmodconfig

WARNING: unmet direct dependencies detected for MFD_CORE
  Depends on [n]: HAS_IOMEM [=n]
  Selected by [m]:
  - MFD_HI6421_SPMI [=m] && STAGING [=y] && OF [=y] && SPMI [=m]
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_KCOV=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n
# Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n
# Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n
# Added to kconfig CONFIG_GCC_PLUGIN_STRUCTLEAK=n
# Added to kconfig CONFIG_GCC_PLUGIN_RANDSTRUCT=n
# Added to kconfig CONFIG_UML_NET=n
# Added to kconfig CONFIG_UML_NET_ETHERTAP=n
# Added to kconfig CONFIG_UML_NET_TUNTAP=n
# Added to kconfig CONFIG_UML_NET_SLIP=n
# Added to kconfig CONFIG_UML_NET_DAEMON=n
# Added to kconfig CONFIG_UML_NET_VDE=n
# Added to kconfig CONFIG_UML_NET_MCAST=n
# Added to kconfig CONFIG_UML_NET_PCAP=n
# Added to kconfig CONFIG_UML_NET_SLIRP=n
# Added to kconfig CONFIG_GCOV_KERNEL=n
# Added to kconfig CONFIG_DEBUG_INFO_BTF=n
# < make -s -j 8 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 help
# make -s -j 8 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig
.config:4361:warning: override: reassigning to symbol UML_NET_ETHERTAP
.config:4363:warning: override: reassigning to symbol UML_NET_SLIP
.config:4366:warning: override: reassigning to symbol UML_NET_MCAST
.config:4368:warning: override: reassigning to symbol UML_NET_SLIRP

WARNING: unmet direct dependencies detected for MFD_CORE
  Depends on [n]: HAS_IOMEM [=n]
  Selected by [m]:
  - MFD_HI6421_SPMI [=m] && STAGING [=y] && OF [=y] && SPMI [=m]
# make -s -j 8 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 

WARNING: unmet direct dependencies detected for MFD_CORE
  Depends on [n]: HAS_IOMEM [=n]
  Selected by [m]:
  - MFD_HI6421_SPMI [=m] && STAGING [=y] && OF [=y] && SPMI [=m]

WARNING: unmet direct dependencies detected for MFD_CORE
  Depends on [n]: HAS_IOMEM [=n]
  Selected by [m]:
  - MFD_HI6421_SPMI [=m] && STAGING [=y] && OF [=y] && SPMI [=m]

WARNING: unmet direct dependencies detected for MFD_CORE
  Depends on [n]: HAS_IOMEM [=n]
  Selected by [m]:
  - MFD_HI6421_SPMI [=m] && STAGING [=y] && OF [=y] && SPMI [=m]
/kisskb/src/arch/um/os-Linux/signal.c: In function 'sig_handler_common':
/kisskb/src/arch/um/os-Linux/signal.c:51:1: warning: the frame size of 2976 bytes is larger than 2048 bytes [-Wframe-larger-than=]
 }
 ^
/kisskb/src/arch/um/os-Linux/signal.c: In function 'timer_real_alarm_handler':
/kisskb/src/arch/um/os-Linux/signal.c:95:1: warning: the frame size of 2960 bytes is larger than 2048 bytes [-Wframe-larger-than=]
 }
 ^

Auto-detecting system features:
...                        libelf: [ OFF ]
...                          zlib: [ OFF ]
...                           bpf: [ on  ]

No libelf found
make[5]: *** [Makefile:287: elfdep] Error 1
make[4]: *** [/kisskb/src/kernel/bpf/preload/Makefile:8: kernel/bpf/preload/libbpf.a] Error 2
make[3]: *** [/kisskb/src/scripts/Makefile.build:496: kernel/bpf/preload] Error 2
make[2]: *** [/kisskb/src/scripts/Makefile.build:496: kernel/bpf] Error 2
make[1]: *** [/kisskb/src/Makefile:1805: kernel] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:185: __sub-make] Error 2
Command 'make -s -j 8 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_um-allmodconfig_um-x86_64
# Build took: 0:06:12.859444