Hi Eric,

FYI, kernel build failed on

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git userns-always-map-user-v52
head:   3f025b06f2ae383ffd04b159d9b243f3d2398cff
commit: 3a77452adbd7e23eed239f5997450cd881276e01 [38/154] userns: Add basic quota support v5
config: i386-randconfig-k880 (attached as .config)

All related error/warning messages:

fs/built-in.o: In function `quota_getxquota':
fs/quota/quota.c:246: undefined reference to `qid_valid'
fs/built-in.o: In function `quota_setxquota':
fs/quota/quota.c:231: undefined reference to `qid_valid'
fs/built-in.o: In function `quota_setquota':
fs/quota/quota.c:190: undefined reference to `qid_valid'
fs/built-in.o: In function `quota_getquota':
fs/quota/quota.c:141: undefined reference to `qid_valid'
fs/built-in.o: In function `quota_send_warning':
fs/quota/netlink.c:63: undefined reference to `from_kqid_munged'

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