# git rev-parse -q --verify b277fc793daf258877b4c0744b52f69d6e6ba22e^{commit}
b277fc793daf258877b4c0744b52f69d6e6ba22e
already have revision, skipping fetch
# git checkout -q -f -B kisskb b277fc793daf258877b4c0744b52f69d6e6ba22e
# git clean -qxdf
# < git log -1
# commit b277fc793daf258877b4c0744b52f69d6e6ba22e
# Author: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
# Date:   Tue Apr 4 09:44:33 2023 +0530
# 
#     powerpc/papr_scm: Update the NUMA distance table for the target node
#     
#     Platform device helper routines won't update the NUMA distance table
#     while creating a platform device, even if the device is present on a
#     NUMA node that doesn't have memory or CPU. This is especially true for
#     pmem devices. If the target node of the pmem device is not online, we
#     find the nearest online node to the device and associate the pmem device
#     with that online node. To find the nearest online node, we should have
#     the numa distance table updated correctly. Update the distance
#     information during the device probe.
#     
#     For a papr scm device on NUMA node 3 distance_lookup_table value for
#     distance_ref_points_depth = 2 before and after fix is below:
#     
#     Before fix:
#       node 3 distance depth 0  - 0
#       node 3 distance depth 1  - 0
#       node 4 distance depth 0  - 4
#       node 4 distance depth 1  - 2
#       node 5 distance depth 0  - 5
#       node 5 distance depth 1  - 1
#     
#     After fix
#       node 3 distance depth 0  - 3
#       node 3 distance depth 1  - 1
#       node 4 distance depth 0  - 4
#       node 4 distance depth 1  - 2
#       node 5 distance depth 0  - 5
#       node 5 distance depth 1  - 1
#     
#     Without the fix, the nearest numa node to the pmem device (NUMA node 3)
#     will be picked as 4. After the fix, we get the correct numa node which
#     is 5.
#     
#     Fixes: da1115fdbd6e ("powerpc/nvdimm: Pick nearby online node if the device node is not online")
#     Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://msgid.link/20230404041433.1781804-1-aneesh.kumar@linux.ibm.com
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-ld --version
# < git log --format=%s --max-count=1 b277fc793daf258877b4c0744b52f69d6e6ba22e
# < make -s -j 160 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  defconfig
# < make -s -j 160 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  help
# make -s -j 160 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  olddefconfig
# make -s -j 160 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  
In file included from /kisskb/src/include/linux/rculist.h:10,
                 from /kisskb/src/include/linux/pid.h:5,
                 from /kisskb/src/include/linux/sched.h:14,
                 from /kisskb/src/fs/btrfs/volumes.c:6:
/kisskb/src/fs/btrfs/volumes.c: In function 'btrfs_init_new_device':
/kisskb/src/include/linux/list.h:74:12: warning: 'seed_devices' may be used uninitialized in this function [-Wmaybe-uninitialized]
  new->prev = prev;
  ~~~~~~~~~~^~~~~~
/kisskb/src/fs/btrfs/volumes.c:2612:27: note: 'seed_devices' was declared here
  struct btrfs_fs_devices *seed_devices;
                           ^~~~~~~~~~~~
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8
# Build took: 0:01:05.761346