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Date:   Sun, 9 Aug 2020 05:44:30 +0800
From:   kernel test robot <lkp@...el.com>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        linux-kernel@...r.kernel.org,
        Chris Wilson <chris@...is-wilson.co.uk>,
        Nathan Chancellor <natechancellor@...il.com>
Subject: drivers/gpu/drm/i915/i915_sw_fence.c:111:20: error: unused function
 'debug_fence_free'

Hi Nick,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   11030fe96b57ad843518b0e9430f3cd4b3610ce2
commit: 9f4069b055d1508c833115df7493b6e0001e5c9b drm/i915: re-disable -Wframe-address
date:   3 months ago
config: x86_64-randconfig-r031-20200809 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 0b90a08f7722980f6074c6eada8022242408cdb4)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        git checkout 9f4069b055d1508c833115df7493b6e0001e5c9b
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/i915/i915_sw_fence.c:111:20: error: unused function 'debug_fence_free' [-Werror,-Wunused-function]
   static inline void debug_fence_free(struct i915_sw_fence *fence)
                      ^
   1 error generated.
--
>> drivers/gpu/drm/i915/gt/intel_workarounds.c:1082:20: error: function 'is_nonpriv_flags_valid' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration]
   static inline bool is_nonpriv_flags_valid(u32 flags)
                      ^
   1 error generated.
--
>> drivers/gpu/drm/i915/i915_active.c:123:20: error: unused function 'debug_active_fini' [-Werror,-Wunused-function]
   static inline void debug_active_fini(struct i915_active *ref) { }
                      ^
   1 error generated.
--
>> drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c:259:19: error: unused function 'rq_prio' [-Werror,-Wunused-function]
   static inline int rq_prio(const struct i915_request *rq)
                     ^
   1 error generated.
--
>> drivers/gpu/drm/i915/gvt/gtt.c:267:19: error: unused function 'get_pt_type' [-Werror,-Wunused-function]
   static inline int get_pt_type(int type)
                     ^
>> drivers/gpu/drm/i915/gvt/gtt.c:590:20: error: unused function 'ppgtt_set_guest_root_entry' [-Werror,-Wunused-function]
   static inline void ppgtt_set_guest_root_entry(struct intel_vgpu_mm *mm,
                      ^
   2 errors generated.

vim +/debug_fence_free +111 drivers/gpu/drm/i915/i915_sw_fence.c

fc1584059d6c43 Chris Wilson 2016-11-25  110  
fc1584059d6c43 Chris Wilson 2016-11-25 @111  static inline void debug_fence_free(struct i915_sw_fence *fence)
fc1584059d6c43 Chris Wilson 2016-11-25  112  {
fc1584059d6c43 Chris Wilson 2016-11-25  113  }
fc1584059d6c43 Chris Wilson 2016-11-25  114  

:::::: The code at line 111 was first introduced by commit
:::::: fc1584059d6c438b1febafa1c207ae1d3c6643e8 drm/i915: Integrate i915_sw_fence with debugobjects

:::::: TO: Chris Wilson <chris@...is-wilson.co.uk>
:::::: CC: Chris Wilson <chris@...is-wilson.co.uk>

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

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