Hi Jonathan,

Kernel build failed on

tree:   git://neil.brown.name/md for-next
head:   63f33b8dda88923487004b20fba825486d009e7b
commit: 63f33b8dda88923487004b20fba825486d009e7b [18/18] DM RAID: Add support for MD RAID10
config: i386-randconfig-k016 (attached as .config)

All related error/warning messages:

drivers/built-in.o: In function `raid_is_congested':
dm-raid.c:(.text+0x11f6d5): undefined reference to `md_raid10_congested'

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0-DAY kernel build testing backend         Open Source Technology Centre
Fengguang Wu <wfg@linux.intel.com>                     Intel Corporation