# git rev-parse -q --verify ea458effa88e4f4739551d76fe3f702daf607995^{commit}
ea458effa88e4f4739551d76fe3f702daf607995
already have revision, skipping fetch
# git checkout -q -f -B kisskb ea458effa88e4f4739551d76fe3f702daf607995
# git clean -qxdf
# < git log -1
# commit ea458effa88e4f4739551d76fe3f702daf607995
# Author: Alastair D'Silva <alastair@d-silva.org>
# Date:   Mon Nov 4 13:32:58 2019 +1100
# 
#     powerpc: Don't flush caches when adding memory
#     
#     This operation takes a significant amount of time when hotplugging
#     large amounts of memory (~50 seconds with 890GB of persistent memory).
#     
#     This was orignally in commit fb5924fddf9e
#     ("powerpc/mm: Flush cache on memory hot(un)plug") to support memtrace,
#     but the flush on add is not needed as it is flushed on remove.
#     
#     Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20191104023305.9581-7-alastair@au1.ibm.com
# < /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 ea458effa88e4f4739551d76fe3f702daf607995
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_ebony_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  44x/ebony_defconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_ebony_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/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/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
INFO: Uncompressed kernel (size 0x4ec17c) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
INFO: Uncompressed kernel (size 0x4ec17c) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-5.4.0-rc2-gea458effa88e
Created:      Sat Nov  9 19:37:11 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2506779 Bytes = 2448.03 KiB = 2.39 MiB
Load Address: 00500000
Entry Point:  005000c8
Completed OK
# rm -rf /kisskb/build/powerpc-next_44x_ebony_defconfig_powerpc-gcc4.6
# Build took: 0:00:32.489581