# git gc
# git rev-parse -q --verify ceb307474506f888e8f16dab183405ff01dffa08^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify ceb307474506f888e8f16dab183405ff01dffa08^{commit}
ceb307474506f888e8f16dab183405ff01dffa08
# git checkout -q -f -B kisskb ceb307474506f888e8f16dab183405ff01dffa08
# git clean -qxdf
# < git log -1
# commit ceb307474506f888e8f16dab183405ff01dffa08
# Merge: 0da522107e5d b111df8447ac
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Dec 1 14:00:59 2019 -0800
# 
#     Merge tag 'y2038-cleanups-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground
#     
#     Pull y2038 cleanups from Arnd Bergmann:
#      "y2038 syscall implementation cleanups
#     
#       This is a series of cleanups for the y2038 work, mostly intended for
#       namespace cleaning: the kernel defines the traditional time_t, timeval
#       and timespec types that often lead to y2038-unsafe code. Even though
#       the unsafe usage is mostly gone from the kernel, having the types and
#       associated functions around means that we can still grow new users,
#       and that we may be missing conversions to safe types that actually
#       matter.
#     
#       There are still a number of driver specific patches needed to get the
#       last users of these types removed, those have been submitted to the
#       respective maintainers"
#     
#     Link: https://lore.kernel.org/lkml/20191108210236.1296047-1-arnd@arndb.de/
#     
#     * tag 'y2038-cleanups-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (26 commits)
#       y2038: alarm: fix half-second cut-off
#       y2038: ipc: fix x32 ABI breakage
#       y2038: fix typo in powerpc vdso "LOPART"
#       y2038: allow disabling time32 system calls
#       y2038: itimer: change implementation to timespec64
#       y2038: move itimer reset into itimer.c
#       y2038: use compat_{get,set}_itimer on alpha
#       y2038: itimer: compat handling to itimer.c
#       y2038: time: avoid timespec usage in settimeofday()
#       y2038: timerfd: Use timespec64 internally
#       y2038: elfcore: Use __kernel_old_timeval for process times
#       y2038: make ns_to_compat_timeval use __kernel_old_timeval
#       y2038: socket: use __kernel_old_timespec instead of timespec
#       y2038: socket: remove timespec reference in timestamping
#       y2038: syscalls: change remaining timeval to __kernel_old_timeval
#       y2038: rusage: use __kernel_old_timeval
#       y2038: uapi: change __kernel_time_t to __kernel_old_time_t
#       y2038: stat: avoid 'time_t' in 'struct stat'
#       y2038: ipc: remove __kernel_time_t reference from headers
#       y2038: vdso: powerpc: avoid timespec references
#       ...
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version
# < git log --format=%s --max-count=1 ceb307474506f888e8f16dab183405ff01dffa08
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_pasemi_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  pasemi_defconfig
# make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_pasemi_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec':
/kisskb/src/fs/ext4/extents.c:5054:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write':
/kisskb/src/drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1496:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2076:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here
/kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char':
/kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq':
/kisskb/src/drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here
/kisskb/src/drivers/usb/core/devio.c: In function 'async_completed':
/kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/linus_pasemi_defconfig_powerpc-gcc4.6
# Build took: 0:07:27.293983