# git rev-parse -q --verify 0e40da3efeb02ab0333d01abae20d421841db30a^{commit}
0e40da3efeb02ab0333d01abae20d421841db30a
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0e40da3efeb02ab0333d01abae20d421841db30a
# git clean -qxdf
# < git log -1
# commit 0e40da3efeb02ab0333d01abae20d421841db30a
# Merge: ffb8e45cf33e 9c38f1f04408
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Mar 29 14:46:00 2019 -0700
# 
#     Merge tag 'kbuild-fixes-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
#     
#     Pull Kbuild fixes from Masahiro Yamada:
#     
#      - Remove harmful -Oz option of Clang
#     
#      - Get back the original behavior (no recursion for in-tree build) for
#        GNU Make 4.x
#     
#      - Some minor fixes for coccinelle patches
#     
#      - Do not overwrite .gitignore in the output directory in case it is
#        version-controlled
#     
#      - Fix missed record-mcount bug for dynamic ftrace
#     
#      - Fix endianness bug in modversions for relative CRC
#     
#      - Cater to '^H' key code in Kconfig ncurses programs
#     
#     * tag 'kbuild-fixes-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
#       kconfig/[mn]conf: handle backspace (^H) key
#       kbuild: modversions: Fix relative CRC byte order interpretation
#       scripts: coccinelle: Fix description of badty.cocci
#       kbuild: strip whitespace in cmd_record_mcount findstring
#       kbuild: do not overwrite .gitignore in output directory
#       kbuild: skip parsing pre sub-make code for recursion
#       coccinelle: put_device: reduce false positives
#       kbuild: skip sub-make for in-tree build with GNU Make 4.x
#       Revert "kbuild: use -Oz instead of -Os when using clang"
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/alpha-linux/bin/alpha-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/alpha-linux/bin/alpha-linux-ld --version
# < git log --format=%s --max-count=1 0e40da3efeb02ab0333d01abae20d421841db30a
# < make -s -j 48 ARCH=alpha O=/kisskb/build/linus_alpha-defconfig_alpha CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/alpha-linux/bin/alpha-linux-  defconfig
# make -s -j 48 ARCH=alpha O=/kisskb/build/linus_alpha-defconfig_alpha CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/alpha-linux/bin/alpha-linux-  
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:187:16: warning: 'old' 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:337:21: note: 'pdeo' was declared here
/kisskb/src/net/ipv4/ip_output.c: In function '__ip_append_data':
/kisskb/src/include/linux/skbuff.h:1397:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ipv4/ip_output.c:885:14: note: 'extra_uref' was declared here
/kisskb/src/mm/mprotect.c: In function 'change_pte_range':
/kisskb/src/mm/mprotect.c:42:20: warning: unused variable 'mm' [-Wunused-variable]
WARNING: "saved_config" [vmlinux] is COMMON symbol
  Kernel arch/alpha/boot/vmlinux.gz is ready
Completed OK
# rm -rf /kisskb/build/linus_alpha-defconfig_alpha
# Build took: 0:00:46.236788