[agd5f:amd-staging-drm-next 2342/2544] Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1397 cannot understand function prototype: 'unsigned int dcn60_debug_peak_bw_ramp_size = 0x100;'

[agd5f:amd-staging-drm-next 2342/2544] Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1397 cannot understand function prototype: 'unsigned int dcn60_debug_peak_bw_ramp_size = 0x100;'

[kernel test robot]

tree:   https://gitlab.freedesktop.org/agd5f/linux.git amd-staging-drm-next
head:   232bf7d5453df6cc0d877a1003f9aa172e9750de
commit: 90ceba0a0383aeb71476eda2a25d0153ed85138b [2342/2544] drm/amd/display: Fix DCN6 peak bandwidth measurement overshoot
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20260821/202608211232.kslPjQsM-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260821/202608211232.kslPjQsM-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202608211232.kslPjQsM-lkp@intel.com/

All warnings (new ones prefixed by >>):

   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:732 Cannot find identifier on line:
    * @brief Resets the performance monitor for the DCN 6.0 hubbub.
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:733 Cannot find identifier on line:
    *
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:734 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * This function resets the performance monitoring counters and related
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:755 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * Starts measuring memory latencies (maximum, minimum, and average) in
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:877 Cannot find identifier on line:
    * @brief Reads the current performance monitor results and calculates
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:878 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * memory latencies in nanoseconds.
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:943 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * Starts measuring urgent assertion and deassertion counts using
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1035 Cannot find identifier on line:
    * @brief Reads the urgent assertion and deassertion counts from the
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1036 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * performance monitor.
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1089 Cannot find identifier on line:
    * @brief Configures the performance monitor to measure the urgent ramp
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1090 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * latency.
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1336 Cannot find identifier on line:
    * @brief Reads the current performance monitor result and calculates
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1337 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * the urgent ramp latency in nanoseconds.
>> Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1397 cannot understand function prototype: 'unsigned int dcn60_debug_peak_bw_ramp_size = 0x100;'
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1602 Cannot find identifier on line:
    * @brief Configures the performance monitor to measure in-order
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1603 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * bandwidth in megabits per second (Mbps).
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1683 Cannot find identifier on line:
    * @brief Reads the current performance monitor result and calculates
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1684 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * the in-order bandwidth in Mbps.
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1742 Cannot find identifier on line:
    * @brief Configures the performance monitor to measure prefetch data size.
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1743 Cannot find identifier on line:
    *
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1744 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * This function sets up performance monitoring counter 0 to measure
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1796 Cannot find identifier on line:
    * @brief Reads the current performance monitor result and calculates
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1797 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * the prefetch data size in bytes.
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1822 Cannot find identifier on line:
    * @brief Forces the display to use the nominal QoS profile.
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1823 Cannot find identifier on line:
    *
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1824 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * This function configures the hubbub to force the display to use
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1839 Cannot find identifier on line:
    * @brief Forces the display to use the urgent QoS profile.
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1840 Cannot find identifier on line:
    *
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1841 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * This function configures the hubbub to force the display to use
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1856 Cannot find identifier on line:
    * @brief Resets the display QoS profile to default.
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1857 Cannot find identifier on line:
    *
   Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hubbub/dcn60/dcn60_hubbub.c:1858 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
    * This function resets the display QoS profile by disabling any

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