drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c:61:17: error: implicit declaration of function 'enable_kernel_altivec'; did you mean 'enable_kernel_vsx'?

kernel test robot
2021-11-16T00:09:42Z

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 8ab774587903771821b59471cc723bba6d893942
commit: 96ee63730fa30614e943ac352ef772be49a712d9 drm/amd/display: Add control mechanism for FPU
date: 3 months ago
config: powerpc64-buildonly-randconfig-r005-20211113 (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 11.2.0
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=96ee63730fa30614e943ac352ef772be49a712d9
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 96ee63730fa30614e943ac352ef772be49a712d9
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=powerpc

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

All errors (new ones prefixed by >>):

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c: In function 'dc_fpu_begin':
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c:61:17: error: implicit declaration of function 'enable_kernel_altivec'; did you mean 'enable_kernel_vsx'? [-Werror=implicit-function-declaration]
61 | enable_kernel_altivec();
| ^~~~~~~~~~~~~~~~~~~~~
| enable_kernel_vsx
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c: In function 'dc_fpu_end':
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c:89:17: error: implicit declaration of function 'disable_kernel_altivec'; did you mean 'disable_kernel_vsx'? [-Werror=implicit-function-declaration]
89 | disable_kernel_altivec();
| ^~~~~~~~~~~~~~~~~~~~~~
| disable_kernel_vsx
cc1: some warnings being treated as errors

vim +61 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c

35
36 /**
37 * dc_fpu_begin - Enables FPU protection
38 * @function_name: A string containing the function name for debug purposes
39 * (usually __func__)
40 *
41 * @line: A line number where DC_FP_START was invoked for debug purpose
42 * (usually __LINE__)
43 *
44 * This function is responsible for managing the use of kernel_fpu_begin() with
45 * the advantage of providing an event trace for debugging.
46 *
47 * Note: Do not call this function directly; always use DC_FP_START().
48 */
49 void dc_fpu_begin(const char *function_name, const int line)
50 {
51 TRACE_DCN_FPU(true, function_name, line);
52
53 #if defined(CONFIG_X86)
54 kernel_fpu_begin();
55 #elif defined(CONFIG_PPC64)
56 if (cpu_has_feature(CPU_FTR_VSX_COMP)) {
57 preempt_disable();
58 enable_kernel_vsx();
59 } else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) {
60 preempt_disable();
> 61 enable_kernel_altivec();
62 } else if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) {
63 preempt_disable();
64 enable_kernel_fp();
65 }
66 #endif
67 }
68
69 /**
70 * dc_fpu_end - Disable FPU protection
71 * @function_name: A string containing the function name for debug purposes
72 * @line: A-line number where DC_FP_END was invoked for debug purpose
73 *
74 * This function is responsible for managing the use of kernel_fpu_end() with
75 * the advantage of providing an event trace for debugging.
76 *
77 * Note: Do not call this function directly; always use DC_FP_END().
78 */
79 void dc_fpu_end(const char *function_name, const int line)
80 {
81 TRACE_DCN_FPU(false, function_name, line);
82 #if defined(CONFIG_X86)
83 kernel_fpu_end();
84 #elif defined(CONFIG_PPC64)
85 if (cpu_has_feature(CPU_FTR_VSX_COMP)) {
86 disable_kernel_vsx();
87 preempt_enable();
88 } else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) {
> 89 disable_kernel_altivec();

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

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