# git rev-parse -q --verify ffd602eb4693bbb49b301fa059b109bbdebf9524^{commit}
ffd602eb4693bbb49b301fa059b109bbdebf9524
already have revision, skipping fetch
# git checkout -q -f -B kisskb ffd602eb4693bbb49b301fa059b109bbdebf9524
# git clean -qxdf
# < git log -1
# commit ffd602eb4693bbb49b301fa059b109bbdebf9524
# Merge: 5af7f115886f 9250d20e9ece
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Mar 10 17:48:21 2019 -0700
# 
#     Merge tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
#     
#     Pull Kbuild updates from Masahiro Yamada:
#     
#      - do not generate unneeded top-level built-in.a
#     
#      - let git ignore O= directory entirely
#     
#      - optimize scripts/kallsyms slightly
#     
#      - exclude DWARF info from *.s regardless of config options
#     
#      - fix GCC toolchain search path for Clang to prepare ld.lld support
#     
#      - do not generate modules.order when CONFIG_MODULES is disabled
#     
#      - simplify single target rules and remove VPATH for external module
#        build
#     
#      - allow to add optional flags to dpkg-buildpackage when building
#        deb-pkg
#     
#      - move some compiler option tests from Makefile to Kconfig
#     
#      - various Makefile cleanups
#     
#     * tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (40 commits)
#       kbuild: remove scripts/basic/% build target
#       kbuild: use -Werror=implicit-... instead of -Werror-implicit-...
#       kbuild: clean up scripts/gcc-version.sh
#       kbuild: remove cc-version macro
#       kbuild: update comment block of scripts/clang-version.sh
#       kbuild: remove commented-out INITRD_COMPRESS
#       kbuild: move -gsplit-dwarf, -gdwarf-4 option tests to Kconfig
#       kbuild: [bin]deb-pkg: add DPKG_FLAGS variable
#       kbuild: move ".config not found!" message from Kconfig to Makefile
#       kbuild: invoke syncconfig if include/config/auto.conf.cmd is missing
#       kbuild: simplify single target rules
#       kbuild: remove empty rules for makefiles
#       kbuild: make -r/-R effective in top Makefile for old Make versions
#       kbuild: move tools_silent to a more relevant place
#       kbuild: compute false-positive -Wmaybe-uninitialized cases in Kconfig
#       kbuild: refactor cc-cross-prefix implementation
#       kbuild: hardcode genksyms path and remove GENKSYMS variable
#       scripts/gdb: refactor rules for symlink creation
#       kbuild: create symlink to vmlinux-gdb.py in scripts_gdb target
#       scripts/gdb: do not descend into scripts/gdb from scripts
#       ...
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-ld --version
# < git log --format=%s --max-count=1 ffd602eb4693bbb49b301fa059b109bbdebf9524
# < make -s -j 80 ARCH=mips O=/kisskb/build/linus_ip22_defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-  ip22_defconfig
# make -s -j 80 ARCH=mips O=/kisskb/build/linus_ip22_defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-  
/kisskb/src/arch/mips/vdso/Makefile:39: MIPS VDSO requires binutils >= 2.25
<stdin>:1478:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
/kisskb/src/arch/mips/vdso/Makefile:39: MIPS VDSO requires binutils >= 2.25
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/notify/mark.c: In function 'fsnotify_add_mark_list':
/kisskb/src/fs/notify/mark.c:587:3: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'long int' [-Wformat]
/kisskb/src/fs/notify/mark.c:587:3: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'long int' [-Wformat]
/kisskb/src/fs/notify/mark.c:587:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'long int' [-Wformat]
/kisskb/src/fs/notify/mark.c:587:3: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'long int' [-Wformat]
/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:339:21: 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/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1845:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1755:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/linus_ip22_defconfig_mips
# Build took: 0:01:11.932233