# 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_lpc32xx_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  lpc32xx_defconfig
# make -s -j 48 ARCH=arm O=/kisskb/build/linus_lpc32xx_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/ipc/shm.c: In function 'ksys_shmdt':
/kisskb/src/ipc/shm.c:1712:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:121:34: warning: 'levelspread[<U8640>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[<U8640>]' 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/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/net/core/gen_stats.c: In function '__gnet_stats_copy_basic':
/kisskb/src/net/core/gen_stats.c:161:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized]
/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/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_sideband_msg_build':
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:423:23: warning: 'hdrlen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpio/gpiolib-of.c: In function 'of_gpiochip_add':
/kisskb/src/drivers/gpio/gpiolib-of.c:462:8: warning: 'dflags' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpio/gpiolib-of.c:448:19: note: 'dflags' was declared here
/kisskb/src/drivers/gpio/gpiolib-of.c:462:8: warning: 'lflags' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpio/gpiolib-of.c:447:25: note: 'lflags' was declared here
/kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list':
/kisskb/src/net/core/dev.c:3405:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/mtd/ubi/eba.c: In function 'try_write_vid_and_data':
/kisskb/src/drivers/mtd/ubi/eba.c:1001:7: warning: 'opnum' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker':
/kisskb/src/lib/rhashtable.c:264:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c:229:28: note: 'next' was declared here
/kisskb/src/fs/io_uring.c: In function 'io_sq_wq_submit_work':
/kisskb/src/arch/arm/include/asm/uaccess.h:70:36: warning: 'old_fs' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/io_uring.c:1487:15: note: 'old_fs' 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/drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_check_only':
/kisskb/src/drivers/gpu/drm/drm_atomic.c:420:38: warning: 'crtc_state' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/drm_atomic.c:399:25: note: 'crtc_state' was declared here
/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
Completed OK
# rm -rf /kisskb/build/linus_lpc32xx_defconfig_arm
# Build took: 0:00:56.611943