# git rev-parse -q --verify a9336ddf448b1cba3080195cec2287af3907236c^{commit}
a9336ddf448b1cba3080195cec2287af3907236c
already have revision, skipping fetch
# git checkout -q -f -B kisskb a9336ddf448b1cba3080195cec2287af3907236c
# git clean -qxdf
# < git log -1
# commit a9336ddf448b1cba3080195cec2287af3907236c
# Author: Deb McLemore <debmc@linux.vnet.ibm.com>
# Date:   Sun May 20 21:04:38 2018 -0500
# 
#     powerpc/powernv: Add queue mechanism for early messages
#     
#     When issuing a BMC soft poweroff during IPL, the poweroff can be lost
#     so the machine would not poweroff.
#     
#     This is because opal messages can be received before the opal-power
#     code registered its notifiers.
#     
#     Fix it by buffering messages. If we receive a message and do not yet
#     have a handler for that type, store the message and replay when a
#     handler for that type is registered.
#     
#     Signed-off-by: Deb McLemore <debmc@linux.vnet.ibm.com>
#     [mpe: Single unlock path in opal_message_notifier_register(), tweak
#           comments/formatting and change log.]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/1526868278-4204-1-git-send-email-debmc@linux.vnet.ibm.com
# < /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 a9336ddf448b1cba3080195cec2287af3907236c
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
In file included from /kisskb/src/include/linux/list.h:9:0,
                 from /kisskb/src/include/linux/wait.h:7,
                 from /kisskb/src/include/linux/wait_bit.h:8,
                 from /kisskb/src/include/linux/fs.h:6,
                 from /kisskb/src/fs/btrfs/send.c:7:
/kisskb/src/fs/btrfs/send.c: In function 'process_extent':
/kisskb/src/include/linux/kernel.h:37:33: warning: 'clone_src_i_size' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define IS_ALIGNED(x, a)  (((x) & ((typeof(x))(a) - 1)) == 0)
                                 ^
/kisskb/src/fs/btrfs/send.c:5088:6: note: 'clone_src_i_size' was declared here
  u64 clone_src_i_size;
      ^
WARNING: vmlinux.o(.text+0x2fc8): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel()
The function start_here_common() references
the function __init start_kernel().
This is often because start_here_common lacks a __init 
annotation or the annotation of start_kernel is wrong.

Completed OK
# rm -rf /kisskb/build/powerpc-next_powernv_defconfig_ppc64le-gcc5
# Build took: 0:03:32.214029