[Intel-gfx] [PATCH 02/23] perf/core: Only copy-to-user after completely unlocking all locks.

[kbuild test robot]

Hi Maarten,

I love your patch! Perhaps something to improve:

[auto build test WARNING on drm-tip/drm-tip]
[also build test WARNING on next-20200331]
[cannot apply to drm-intel/for-linux-next tip/perf/core v5.6]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Maarten-Lankhorst/Revert-drm-i915-gem-Drop-relocation-slowpath/20200401-005710
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
config: x86_64-randconfig-d003-20200331 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 5227fa0c72ce55927cf4849160acb00442489937)
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp at intel.com>

All warnings (new ones prefixed by >>):

>> kernel/events/core.o: warning: objtool: perf_read()+0x306: stack state mismatch: reg1[3]=-2-56 reg2[3]=-1+0

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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