# git rev-parse -q --verify a123b2f4737a9f4e34e92e502972b6388f90133f^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/stable linux-4.4.y
# git rev-parse -q --verify a123b2f4737a9f4e34e92e502972b6388f90133f^{commit}
a123b2f4737a9f4e34e92e502972b6388f90133f
# git checkout -q -f -B kisskb a123b2f4737a9f4e34e92e502972b6388f90133f
# git clean -qxdf
# < git log -1
# commit a123b2f4737a9f4e34e92e502972b6388f90133f
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Thu Oct 7 08:30:44 2021 +0200
# 
#     Linux 4.4.287
#     
#     Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 a123b2f4737a9f4e34e92e502972b6388f90133f
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/stable-4.4_pseries_le_defconfig_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_le_defconfig
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/stable-4.4_pseries_le_defconfig_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 10 ARCH=powerpc O=/kisskb/build/stable-4.4_pseries_le_defconfig_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 10 ARCH=powerpc O=/kisskb/build/stable-4.4_pseries_le_defconfig_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/lib/copyuser_power7.S: Assembler messages:
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:330: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:331: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:333: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:334: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:336: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:391: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:393: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:397: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:400: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:405: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:410: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:436: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:445: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:466: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:471: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:478: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:481: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:486: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:488: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:568: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:571: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:576: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:581: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:586: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:595: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:621: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:638: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:659: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:668: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:675: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:680: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:685: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copyuser_power7.S:688: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/string_64.S: Assembler messages:
/kisskb/src/arch/powerpc/lib/string_64.S:194: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copypage_power7.S: Assembler messages:
/kisskb/src/arch/powerpc/lib/copypage_power7.S:48: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copypage_power7.S:49: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copypage_power7.S:51: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copypage_power7.S:52: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copypage_power7.S:54: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copypage_power7.S:86: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/copypage_power7.S:95: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S: Assembler messages:
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:264: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:265: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:266: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:267: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:269: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:324: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:326: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:330: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:333: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:338: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:343: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:369: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:378: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:399: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:404: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:411: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:414: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:419: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:421: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:502: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:505: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:510: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:515: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:520: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:529: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:555: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:572: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:593: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:602: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:609: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:614: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:619: Warning: invalid register expression
/kisskb/src/arch/powerpc/lib/memcpy_power7.S:622: Warning: invalid register expression
/kisskb/src/arch/powerpc/mm/hugetlbpage.c: In function '__find_linux_pte_or_hugepte':
cc1: error: function may return address of local variable [-Werror=return-local-addr]
/kisskb/src/arch/powerpc/mm/hugetlbpage.c:981:15: note: declared here
  981 |         pgd_t pgd, *pgdp;
      |               ^~~
cc1: all warnings being treated as errors
make[2]: *** [/kisskb/src/scripts/Makefile.build:280: arch/powerpc/mm/hugetlbpage.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1006: arch/powerpc/mm] Error 2
make[1]: *** Waiting for unfinished jobs....
/kisskb/src/arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
/kisskb/src/arch/powerpc/kernel/exceptions-64s.S:1672: Warning: invalid register expression
/kisskb/src/arch/powerpc/kernel/exceptions-64s.S:1688: Warning: invalid register expression
/kisskb/src/arch/powerpc/kernel/entry_64.S: Assembler messages:
/kisskb/src/arch/powerpc/kernel/entry_64.S:604: Warning: invalid register expression
/kisskb/src/arch/powerpc/kernel/exceptions-64s.S:1702: Warning: invalid register expression
/kisskb/src/arch/powerpc/kernel/exceptions-64s.S:1876: Warning: invalid register expression
make: *** [Makefile:152: sub-make] Error 2
Command 'make -s -j 10 ARCH=powerpc O=/kisskb/build/stable-4.4_pseries_le_defconfig_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/stable-4.4_pseries_le_defconfig_powerpc-gcc11
# Build took: 0:01:40.347403