# git rev-parse -q --verify 50560ce6a0bdab2fc37384c52aa02c7043909d2c^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify 50560ce6a0bdab2fc37384c52aa02c7043909d2c^{commit}
50560ce6a0bdab2fc37384c52aa02c7043909d2c
# git checkout -q -f -B kisskb 50560ce6a0bdab2fc37384c52aa02c7043909d2c
# git clean -qxdf
# < git log -1
# commit 50560ce6a0bdab2fc37384c52aa02c7043909d2c
# Merge: 29c8c18363ee 1e24078113ae
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Mar 25 11:48:01 2022 -0700
# 
#     Merge tag 'kbuild-gnu11-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
#     
#     Pull Kbuild update for C11 language base from Masahiro Yamada:
#      "Kbuild -std=gnu11 updates for v5.18
#     
#       Linus pointed out the benefits of C99 some years ago, especially
#       variable declarations in loops [1]. At that time, we were not ready
#       for the migration due to old compilers.
#     
#       Recently, Jakob Koschel reported a bug in list_for_each_entry(), which
#       leaks the invalid pointer out of the loop [2]. In the discussion, we
#       agreed that the time had come. Now that GCC 5.1 is the minimum
#       compiler version, there is nothing to prevent us from going to
#       -std=gnu99, or even straight to -std=gnu11.
#     
#       Discussions for a better list iterator implementation are ongoing, but
#       this patch set must land first"
#     
#     [1] https://lore.kernel.org/all/CAHk-=wgr12JkKmRd21qh-se-_Gs69kbPgR9x4C+Es-yJV2GLkA@mail.gmail.com/
#     [2] https://lore.kernel.org/lkml/86C4CE7D-6D93-456B-AA82-F8ADEACA40B7@gmail.com/
#     
#     * tag 'kbuild-gnu11-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
#       Kbuild: use -std=gnu11 for KBUILD_USERCFLAGS
#       Kbuild: move to -std=gnu11
#       Kbuild: use -Wdeclaration-after-statement
#       Kbuild: add -Wno-shift-negative-value where -Wextra is used
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 50560ce6a0bdab2fc37384c52aa02c7043909d2c
# < make -s -j 120 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# < make -s -j 120 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 120 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
# make -s -j 120 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-objdump: mm/kfence/kfence_test.o: unable to initialize decompress status for section .debug_info
/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-objdump: mm/kfence/kfence_test.o: unable to initialize decompress status for section .debug_info
/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-objdump: mm/kfence/kfence_test.o: File format not recognized
/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld: mm/kfence/kfence_test.o: unable to initialize decompress status for section .debug_info
/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld: mm/kfence/kfence_test.o: unable to initialize decompress status for section .debug_info
/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld: mm/kfence/kfence_test.o: unable to initialize decompress status for section .debug_info
/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld: mm/kfence/kfence_test.o: unable to initialize decompress status for section .debug_info
mm/kfence/kfence_test.o: file not recognized: File format not recognized
make[3]: *** [/kisskb/src/scripts/Makefile.modfinal:60: mm/kfence/kfence_test.ko] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.modpost:140: __modpost] Error 2
make[1]: *** [/kisskb/src/Makefile:1747: modules] Error 2
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 120 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_x86-allmodconfig_x86_64-gcc8
# Build took: 0:08:37.991389