# git rev-parse -q --verify a5dde5b54c02a2b1f839939ee89aa69caca3e02c^{commit}
a5dde5b54c02a2b1f839939ee89aa69caca3e02c
already have revision, skipping fetch
# git checkout -q -f -B kisskb a5dde5b54c02a2b1f839939ee89aa69caca3e02c
# git clean -qxdf
# < git log -1
# commit a5dde5b54c02a2b1f839939ee89aa69caca3e02c
# Author: Michal Suchanek <msuchanek@suse.de>
# Date:   Thu Mar 15 20:15:52 2018 +0100
# 
#     powerpc/64: Use barrier_nospec in syscall entry
#     
#     On powerpc syscall entry is done in assembly so patch in an explicit
#     barrier_nospec.
#     
#     Signed-off-by: Michal Suchanek <msuchanek@suse.de>
#     [mpe: Move the barrier to immediately prior to the vulnerable load,
#           and add a comment trying to explain why. Drop the barrier from
#           syscall_dotrace, because that syscall number comes from the
#           kernel.]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < git log --format=%s --max-count=1 a5dde5b54c02a2b1f839939ee89aa69caca3e02c
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_virtex5_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  44x/virtex5_defconfig
# make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_virtex5_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:127:33: warning: 'levelspread[<U5460>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:94:6: note: 'levelspread[<U5460>]' was declared here
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' 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:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here
INFO: Uncompressed kernel (size 0x54f46c) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
Image Name:   Linux-4.16.0-rc4+
Created:      Sun Apr  1 23:50:03 2018
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2702811 Bytes = 2639.46 kB = 2.58 MB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/powerpc-next_44x_virtex5_defconfig_powerpc
# Build took: 0:00:55.296367