# 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/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 ffd602eb4693bbb49b301fa059b109bbdebf9524
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_exynos_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  exynos_defconfig
# make -s -j 48 ARCH=arm O=/kisskb/build/linus_exynos_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  
<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/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/kisskb/src/include/linux/percpu-refcount.h:315:12: warning: 'root' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/cgroup/cgroup-v1.c:1120:22: note: 'root' was declared here
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:140:32: warning: 'levelspread[<Ue500>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[<Ue500>]' was declared here
/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/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2594:6: 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:1855:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/trace/trace_dynevent.c: In function 'create_dyn_event':
/kisskb/src/kernel/trace/trace_dynevent.c:89:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ipv4/ip_output.c: In function '__ip_append_data':
/kisskb/src/include/linux/skbuff.h:1343:6: 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/net/ipv6/ip6_output.c: In function '__ip6_append_data':
/kisskb/src/include/linux/skbuff.h:1343:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ipv6/ip6_output.c:1276:14: note: 'extra_uref' was declared here
/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/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon':
/kisskb/src/net/mac80211/mlme.c:1581:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/mac80211/mlme.c:1538:6: note: 'pwr_level_cisco' was declared here
Completed OK
# rm -rf /kisskb/build/linus_exynos_defconfig_arm
# Build took: 0:01:53.534034