# git gc
# git rev-parse -q --verify 4c25df5640ae6e4491ee2c50d3f70c1559ef037d^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git next-test
# git rev-parse -q --verify 4c25df5640ae6e4491ee2c50d3f70c1559ef037d^{commit}
4c25df5640ae6e4491ee2c50d3f70c1559ef037d
# git checkout -q -f -B kisskb 4c25df5640ae6e4491ee2c50d3f70c1559ef037d
# git clean -qxdf
# < git log -1
# commit 4c25df5640ae6e4491ee2c50d3f70c1559ef037d
# Merge: 34b5a946a954 3d7dfd632f9b
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Sat Feb 1 21:47:17 2020 +1100
# 
#     Merge branch 'topic/user-access-begin' into next
#     
#     Merge the user_access_begin() series from Christophe. This is based on
#     a commit from Linus that went into v5.5-rc7.
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version
# < git log --format=%s --max-count=1 4c25df5640ae6e4491ee2c50d3f70c1559ef037d
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64e_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  ppc64e_defconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64e_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/bridge/br_netlink.c: In function 'br_afspec.isra.30':
/kisskb/src/net/bridge/br_netlink.c:648:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec':
/kisskb/src/fs/ext4/extents.c:5054:23: warning: 'ret' 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:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1749:46: warning: 'linear' 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:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' 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:338:21: note: 'pdeo' was declared here
/kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2076:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
/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/usb/core/devio.c: In function 'async_completed':
/kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized]
WARNING: vmlinux.o (.PPC.EMB.apuinfo): unexpected non-allocatable section.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

INFO: Uncompressed kernel (size 0xb8c3c0) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0xc00000)
Image Name:   Linux-5.5.0-rc7-g4c25df5640ae
Created:      Sat Feb  1 23:40:35 2020
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    4767699 Bytes = 4655.96 KiB = 4.55 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/powerpc-next_ppc64e_defconfig_powerpc-gcc4.6
# Build took: 0:07:46.235314