# git rev-parse -q --verify a308a7102215a582fc474375648965bc5692894b^{commit}
a308a7102215a582fc474375648965bc5692894b
already have revision, skipping fetch
# git checkout -q -f -B kisskb a308a7102215a582fc474375648965bc5692894b
# git clean -qxdf
# < git log -1
# commit a308a7102215a582fc474375648965bc5692894b
# Merge: 05bd375b6bde eafee5944062
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Nov 28 10:57:12 2019 -0800
# 
#     Merge tag 'ioremap-5.5' of git://git.infradead.org/users/hch/ioremap
#     
#     Pull generic ioremap support from Christoph Hellwig:
#      "This adds the remaining bits for an entirely generic ioremap and
#       iounmap to lib/ioremap.c. To facilitate that, it cleans up the giant
#       mess of weird ioremap variants we had with no users outside the arch
#       code.
#     
#       For now just the three newest ports use the code, but there is more
#       than a handful others that can be converted without too much work.
#     
#       Summary:
#     
#        - clean up various obsolete ioremap and iounmap variants
#     
#        - add a new generic ioremap implementation and switch csky, nds32 and
#          riscv over to it"
#     
#     * tag 'ioremap-5.5' of git://git.infradead.org/users/hch/ioremap: (21 commits)
#       nds32: use generic ioremap
#       csky: use generic ioremap
#       csky: remove ioremap_cache
#       riscv: use the generic ioremap code
#       lib: provide a simple generic ioremap implementation
#       sh: remove __iounmap
#       nios2: remove __iounmap
#       hexagon: remove __iounmap
#       m68k: rename __iounmap and mark it static
#       arch: rely on asm-generic/io.h for default ioremap_* definitions
#       asm-generic: don't provide ioremap for CONFIG_MMU
#       asm-generic: ioremap_uc should behave the same with and without MMU
#       xtensa: clean up ioremap
#       x86: Clean up ioremap()
#       parisc: remove __ioremap
#       nios2: remove __ioremap
#       alpha: remove the unused __ioremap wrapper
#       hexagon: clean up ioremap
#       ia64: rename ioremap_nocache to ioremap_uc
#       unicore32: remove ioremap_cached
#       ...
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 a308a7102215a582fc474375648965bc5692894b
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  44x/fsp2_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
INFO: Uncompressed kernel (size 0x91ce14) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0xa00000)
Image Name:   Linux-5.4.0-ga308a7102215
Created:      Fri Nov 29 07:10:50 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    4123315 Bytes = 4026.67 KiB = 3.93 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5
# Build took: 0:01:14.068057