# git rev-parse -q --verify bad32f8b971407f2f651b9ceedd2093ce478041f^{commit}
bad32f8b971407f2f651b9ceedd2093ce478041f
already have revision, skipping fetch
# git checkout -q -f -B kisskb bad32f8b971407f2f651b9ceedd2093ce478041f
# git clean -qxdf
# < git log -1
# commit bad32f8b971407f2f651b9ceedd2093ce478041f
# Author: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>
# Date:   Fri Mar 9 17:45:58 2018 -0300
# 
#     powerpc/mm: Fix section mismatch warning in stop_machine_change_mapping()
#     
#     Fix the warning messages for stop_machine_change_mapping(), and a number
#     of other affected functions in its call chain.
#     
#     All modified functions are under CONFIG_MEMORY_HOTPLUG, so __meminit
#     is okay (keeps them / does not discard them).
#     
#     Boot-tested on powernv/power9/radix-mmu and pseries/power8/hash-mmu.
#     
#         $ make -j$(nproc) CONFIG_DEBUG_SECTION_MISMATCH=y vmlinux
#         ...
#           MODPOST vmlinux.o
#         WARNING: vmlinux.o(.text+0x6b130): Section mismatch in reference from the function stop_machine_change_mapping() to the function .meminit.text:create_physical_mapping()
#         The function stop_machine_change_mapping() references
#         the function __meminit create_physical_mapping().
#         This is often because stop_machine_change_mapping lacks a __meminit
#         annotation or the annotation of create_physical_mapping is wrong.
#     
#         WARNING: vmlinux.o(.text+0x6b13c): Section mismatch in reference from the function stop_machine_change_mapping() to the function .meminit.text:create_physical_mapping()
#         The function stop_machine_change_mapping() references
#         the function __meminit create_physical_mapping().
#         This is often because stop_machine_change_mapping lacks a __meminit
#         annotation or the annotation of create_physical_mapping is wrong.
#         ...
#     
#     Signed-off-by: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>
#     Acked-by: Balbir Singh <bsingharora@gmail.com>
#     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 bad32f8b971407f2f651b9ceedd2093ce478041f
# < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_52xx_pcm030_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  52xx/pcm030_defconfig
# make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_52xx_pcm030_defconfig_powerpc 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:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:127:33: warning: 'levelspread[<Uc500>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:94:6: note: 'levelspread[<Uc500>]' was declared here
INFO: Uncompressed kernel (size 0x475c44) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-4.16.0-rc4trunk+
Created:      Mon Mar 26 22:18:13 2018
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2258115 Bytes = 2205.19 kB = 2.15 MB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/powerpc-next_52xx_pcm030_defconfig_powerpc
# Build took: 0:00:21.693811