# 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/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 ea458effa88e4f4739551d76fe3f702daf607995
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_corenet64_smp_defconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  corenet64_smp_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_corenet64_smp_defconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
In file included from /kisskb/src/include/linux/acpi.h:15,
                 from /kisskb/src/include/linux/i2c.h:13,
                 from /kisskb/src/include/uapi/linux/fb.h:6,
                 from /kisskb/src/include/linux/fb.h:6,
                 from /kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:20:
/kisskb/src/drivers/video/fbdev/fsl-diu-fb.c: In function 'fsl_diu_ioctl':
/kisskb/src/include/linux/device.h:1743:2: warning: this statement may fall through [-Wimplicit-fallthrough=]
  _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:1287:3: note: in expansion of macro 'dev_warn'
   dev_warn(info->dev,
   ^~~~~~~~
/kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:1290:2: note: here
  case MFB_SET_PIXFMT:
  ^~~~
In file included from /kisskb/src/include/linux/acpi.h:15,
                 from /kisskb/src/include/linux/i2c.h:13,
                 from /kisskb/src/include/uapi/linux/fb.h:6,
                 from /kisskb/src/include/linux/fb.h:6,
                 from /kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:20:
/kisskb/src/include/linux/device.h:1743:2: warning: this statement may fall through [-Wimplicit-fallthrough=]
  _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:1296:3: note: in expansion of macro 'dev_warn'
   dev_warn(info->dev,
   ^~~~~~~~
/kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:1299:2: note: here
  case MFB_GET_PIXFMT:
  ^~~~
INFO: Uncompressed kernel (size 0x10d30c0) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1100000)
Image Name:   Linux-5.4.0-rc2-gea458effa88e
Created:      Sat Nov  9 21:15:51 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7259718 Bytes = 7089.57 KiB = 6.92 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/powerpc-next_corenet64_smp_defconfig_powerpc-gcc8
# Build took: 0:01:38.370334