[Intel-gfx] [PATCH v4 1/8] cgroup: Allow registration and lookup of cgroup private data (v2)

[kbuild test robot]

Hi Matt,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20180309]
[also build test WARNING on v4.16-rc6]
[cannot apply to v4.16-rc4 v4.16-rc3 v4.16-rc2]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Matt-Roper/cgroup-private-data-and-DRM-i915-integration/20180319-071752
reproduce:
        # apt-get install sparse
        make ARCH=x86_64 allmodconfig
        make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

>> kernel/cgroup/cgroup.c:94:1: sparse: symbol 'cgroup_idr_lock' was not declared. Should it be static?
>> kernel/cgroup/cgroup.c:4655:17: sparse: incorrect type in assignment (different address spaces) @@    expected void **slot @@    got void [noderef] <avoid **slot @@
   kernel/cgroup/cgroup.c:4655:17:    expected void **slot
   kernel/cgroup/cgroup.c:4655:17:    got void [noderef] <asn:4>**
>> kernel/cgroup/cgroup.c:4655:17: sparse: incorrect type in assignment (different address spaces) @@    expected void **slot @@    got void [noderef] <avoid **slot @@
   kernel/cgroup/cgroup.c:4655:17:    expected void **slot
   kernel/cgroup/cgroup.c:4655:17:    got void [noderef] <asn:4>**
>> kernel/cgroup/cgroup.c:4655:17: sparse: incorrect type in argument 1 (different address spaces) @@    expected void [noderef] <asn:4>**slot @@    got sn:4>**slot @@
   kernel/cgroup/cgroup.c:4655:17:    expected void [noderef] <asn:4>**slot
   kernel/cgroup/cgroup.c:4655:17:    got void **slot
>> kernel/cgroup/cgroup.c:4655:17: sparse: incorrect type in assignment (different address spaces) @@    expected void **slot @@    got void [noderef] <avoid **slot @@
   kernel/cgroup/cgroup.c:4655:17:    expected void **slot
   kernel/cgroup/cgroup.c:4655:17:    got void [noderef] <asn:4>**
   kernel/cgroup/cgroup.c:2648:20: sparse: context imbalance in 'cgroup_procs_write_start' - wrong count at exit
   kernel/cgroup/cgroup.c:2704:9: sparse: context imbalance in 'cgroup_procs_write_finish' - wrong count at exit
   kernel/cgroup/cgroup.c:2815:9: sparse: context imbalance in 'cgroup_lock_and_drain_offline' - wrong count at exit
   kernel/cgroup/cgroup.c:4375:16: sparse: context imbalance in 'cgroup_procs_write' - wrong count at exit
   kernel/cgroup/cgroup.c:4416:16: sparse: context imbalance in 'cgroup_threads_write' - wrong count at exit

Please review and possibly fold the followup patch.

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