linux-kernel - drivers/gpu/drm/i915/i915_sw_fence.c:47:20: error: unused function 'debug_fence_init

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Date:   Tue, 2 Aug 2022 06:21:17 +0800
From:   kernel test robot <lkp@...el.com>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        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:47:20: error: unused function
 'debug_fence_init_onstack'

Hi Nick,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   9de1f9c8ca5100a02a2e271bdbde36202e251b4b
commit: 9f4069b055d1508c833115df7493b6e0001e5c9b drm/i915: re-disable -Wframe-address
date:   2 years, 3 months ago
config: x86_64-randconfig-a001-20220801 (https://download.01.org/0day-ci/archive/20220802/202208020632.SW3GUtGm-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 52cd00cabf479aa7eb6dbb063b7ba41ea57bce9e)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9f4069b055d1508c833115df7493b6e0001e5c9b
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 9f4069b055d1508c833115df7493b6e0001e5c9b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/i915/i915_sw_fence.c:47:20: error: unused function 'debug_fence_init_onstack' [-Werror,-Wunused-function]
   static inline void debug_fence_init_onstack(struct i915_sw_fence *fence)
                      ^
   1 error generated.


vim +/debug_fence_init_onstack +47 drivers/gpu/drm/i915/i915_sw_fence.c

fc1584059d6c43 Chris Wilson 2016-11-25  46  
214707fc2ce08d Chris Wilson 2017-10-12 @47  static inline void debug_fence_init_onstack(struct i915_sw_fence *fence)
214707fc2ce08d Chris Wilson 2017-10-12  48  {
214707fc2ce08d Chris Wilson 2017-10-12  49  	debug_object_init_on_stack(fence, &i915_sw_fence_debug_descr);
214707fc2ce08d Chris Wilson 2017-10-12  50  }
214707fc2ce08d Chris Wilson 2017-10-12  51  

:::::: The code at line 47 was first introduced by commit
:::::: 214707fc2ce08d09982bc4fe4b7a1c1f010e82be drm/i915/selftests: Wrap a timer into a i915_sw_fence

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

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp