Re: [PATCH 5/9] amd-pstate: Add support for CPPC_REQ2 and FLOOR_PERF

[kernel test robot]

Hi Gautham,

kernel test robot noticed the following build warnings:

[auto build test WARNING on rafael-pm/linux-next]
[also build test WARNING on rafael-pm/bleeding-edge tip/x86/core amd-pstate/linux-next amd-pstate/bleeding-edge linus/master v7.0-rc2 next-20260306]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Gautham-R-Shenoy/amd-pstate-Fix-memory-leak-in-amd_pstate_epp_cpu_init/20260306-180651
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
patch link:    https://lore.kernel.org/r/20260306095753.17155-6-gautham.shenoy%40amd.com
patch subject: [PATCH 5/9] amd-pstate: Add support for CPPC_REQ2 and FLOOR_PERF
config: i386-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260306/202603061846.lCieImRU-lkp@xxxxxxxxx/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/20260306/202603061846.lCieImRU-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603061846.lCieImRU-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   In file included from ./arch/x86/include/generated/asm/rwonce.h:1,
                    from ./include/linux/compiler.h:372,
                    from ./include/linux/build_bug.h:5,
                    from ./include/linux/bitfield.h:10,
                    from drivers/cpufreq/amd-pstate.c:25:
   drivers/cpufreq/amd-pstate.c: In function 'msr_init_perf':
>> ./include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
      48 |              (type_max(t) << (l) &                              \
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:79:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      79 |         BUILD_BUG_ON_MSG(__bf_cast_unsigned(mask, mask) >               \
         |         ^~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:79:26: note: in expansion of macro '__bf_cast_unsigned'
      79 |         BUILD_BUG_ON_MSG(__bf_cast_unsigned(mask, mask) >               \
         |                          ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:177:17: note: in expansion of macro '__BF_FIELD_CHECK_REG'
     177 |                 __BF_FIELD_CHECK_REG(_mask, _reg, "FIELD_GET: ");       \
         |                 ^~~~~~~~~~~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:79:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      79 |         BUILD_BUG_ON_MSG(__bf_cast_unsigned(mask, mask) >               \
         |         ^~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:79:26: note: in expansion of macro '__bf_cast_unsigned'
      79 |         BUILD_BUG_ON_MSG(__bf_cast_unsigned(mask, mask) >               \
         |                          ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:177:17: note: in expansion of macro '__BF_FIELD_CHECK_REG'
     177 |                 __BF_FIELD_CHECK_REG(_mask, _reg, "FIELD_GET: ");       \
         |                 ^~~~~~~~~~~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> ./include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
      48 |              (type_max(t) << (l) &                              \
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:67:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      67 |                 BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask),          \
         |                 ^~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:67:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      67 |                 BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask),          \
         |                 ^~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> ./include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
      48 |              (type_max(t) << (l) &                              \
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:69:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      69 |                 BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero");    \
         |                 ^~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:69:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      69 |                 BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero");    \
         |                 ^~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> ./include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
      48 |              (type_max(t) << (l) &                              \
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:70:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      70 |                 BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ?           \
         |                 ^~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:70:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      70 |                 BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ?           \
         |                 ^~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> ./include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
      48 |              (type_max(t) << (l) &                              \
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:70:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      70 |                 BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ?           \
         |                 ^~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:71:47: note: in expansion of macro '__bf_shf'
      71 |                                  ~((_mask) >> __bf_shf(_mask)) &        \
         |                                               ^~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:70:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      70 |                 BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ?           \
         |                 ^~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:71:47: note: in expansion of macro '__bf_shf'
      71 |                                  ~((_mask) >> __bf_shf(_mask)) &        \
         |                                               ^~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> ./include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
      48 |              (type_max(t) << (l) &                              \
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:21:9: note: in expansion of macro 'BUILD_BUG_ON'
      21 |         BUILD_BUG_ON(((n) & ((n) - 1)) != 0)
         |         ^~~~~~~~~~~~
   ./include/linux/bitfield.h:74:17: note: in expansion of macro '__BUILD_BUG_ON_NOT_POWER_OF_2'
      74 |                 __BUILD_BUG_ON_NOT_POWER_OF_2((_mask) +                 \
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:21:9: note: in expansion of macro 'BUILD_BUG_ON'
      21 |         BUILD_BUG_ON(((n) & ((n) - 1)) != 0)
         |         ^~~~~~~~~~~~
   ./include/linux/bitfield.h:74:17: note: in expansion of macro '__BUILD_BUG_ON_NOT_POWER_OF_2'
      74 |                 __BUILD_BUG_ON_NOT_POWER_OF_2((_mask) +                 \
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> ./include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
      48 |              (type_max(t) << (l) &                              \
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:21:9: note: in expansion of macro 'BUILD_BUG_ON'
      21 |         BUILD_BUG_ON(((n) & ((n) - 1)) != 0)
         |         ^~~~~~~~~~~~
   ./include/linux/bitfield.h:74:17: note: in expansion of macro '__BUILD_BUG_ON_NOT_POWER_OF_2'
      74 |                 __BUILD_BUG_ON_NOT_POWER_OF_2((_mask) +                 \
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:75:56: note: in expansion of macro '__bf_shf'
      75 |                                               (1ULL << __bf_shf(_mask))); \
         |                                                        ^~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:21:9: note: in expansion of macro 'BUILD_BUG_ON'
      21 |         BUILD_BUG_ON(((n) & ((n) - 1)) != 0)
         |         ^~~~~~~~~~~~
   ./include/linux/bitfield.h:74:17: note: in expansion of macro '__BUILD_BUG_ON_NOT_POWER_OF_2'
      74 |                 __BUILD_BUG_ON_NOT_POWER_OF_2((_mask) +                 \
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:75:56: note: in expansion of macro '__bf_shf'
      75 |                                               (1ULL << __bf_shf(_mask))); \
         |                                                        ^~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> ./include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
      48 |              (type_max(t) << (l) &                              \
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:21:9: note: in expansion of macro 'BUILD_BUG_ON'
      21 |         BUILD_BUG_ON(((n) & ((n) - 1)) != 0)
         |         ^~~~~~~~~~~~
   ./include/linux/bitfield.h:74:17: note: in expansion of macro '__BUILD_BUG_ON_NOT_POWER_OF_2'
      74 |                 __BUILD_BUG_ON_NOT_POWER_OF_2((_mask) +                 \
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:21:9: note: in expansion of macro 'BUILD_BUG_ON'
      21 |         BUILD_BUG_ON(((n) & ((n) - 1)) != 0)
         |         ^~~~~~~~~~~~
   ./include/linux/bitfield.h:74:17: note: in expansion of macro '__BUILD_BUG_ON_NOT_POWER_OF_2'
      74 |                 __BUILD_BUG_ON_NOT_POWER_OF_2((_mask) +                 \
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> ./include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
      48 |              (type_max(t) << (l) &                              \
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:21:9: note: in expansion of macro 'BUILD_BUG_ON'
      21 |         BUILD_BUG_ON(((n) & ((n) - 1)) != 0)
         |         ^~~~~~~~~~~~
   ./include/linux/bitfield.h:74:17: note: in expansion of macro '__BUILD_BUG_ON_NOT_POWER_OF_2'
      74 |                 __BUILD_BUG_ON_NOT_POWER_OF_2((_mask) +                 \
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:75:56: note: in expansion of macro '__bf_shf'
      75 |                                               (1ULL << __bf_shf(_mask))); \
         |                                                        ^~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ././include/linux/compiler_types.h:694:9: note: in expansion of macro '__compiletime_assert'
     694 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^~~~~~~~~~~~~~~~~~~~
   ././include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   ./include/linux/build_bug.h:21:9: note: in expansion of macro 'BUILD_BUG_ON'
      21 |         BUILD_BUG_ON(((n) & ((n) - 1)) != 0)
         |         ^~~~~~~~~~~~
   ./include/linux/bitfield.h:74:17: note: in expansion of macro '__BUILD_BUG_ON_NOT_POWER_OF_2'
      74 |                 __BUILD_BUG_ON_NOT_POWER_OF_2((_mask) +                 \
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:75:56: note: in expansion of macro '__bf_shf'
      75 |                                               (1ULL << __bf_shf(_mask))); \
         |                                                        ^~~~~~~~
   ./include/linux/bitfield.h:97:17: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
      97 |                 __BF_FIELD_CHECK_MASK(mask, 0U, pfx);                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> ./include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
      48 |              (type_max(t) << (l) &                              \
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> ./include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
      48 |              (type_max(t) << (l) &                              \
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ./include/linux/bitfield.h:98:52: note: in expansion of macro '__bf_shf'
      98 |                 (typeof(mask))(((reg) & (mask)) >> __bf_shf(mask));     \
         |                                                    ^~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   ./include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^~
   ./include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   drivers/cpufreq/amd-pstate.c:497:9: note: in expansion of macro 'WRITE_ONCE'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |         ^~~~~~~~~~
   ./include/linux/bitfield.h:98:52: note: in expansion of macro '__bf_shf'
      98 |                 (typeof(mask))(((reg) & (mask)) >> __bf_shf(mask));     \
         |                                                    ^~~~~~~~
   ./include/linux/bitfield.h:178:17: note: in expansion of macro '__FIELD_GET'
     178 |                 __FIELD_GET(_mask, _reg, "FIELD_GET: ");                \
         |                 ^~~~~~~~~~~
   drivers/cpufreq/amd-pstate.c:497:45: note: in expansion of macro 'FIELD_GET'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                             ^~~~~~~~~
   ./include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~
   ./arch/x86/include/asm/msr-index.h:772:41: note: in expansion of macro 'GENMASK'
     772 | #define AMD_CPPC_FLOOR_PERF_CNT_MASK    GENMASK(39, 32)
         |                                         ^~~~~~~
   drivers/cpufreq/amd-pstate.c:497:55: note: in expansion of macro 'AMD_CPPC_FLOOR_PERF_CNT_MASK'
     497 |         WRITE_ONCE(cpudata->floor_perf_cnt, FIELD_GET(AMD_CPPC_FLOOR_PERF_CNT_MASK, cap1));
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +48 ./include/linux/bits.h

31299a5e021124 Vincent Mailhol 2025-03-26  35  
19408200c09485 Vincent Mailhol 2025-03-26  36  /*
19408200c09485 Vincent Mailhol 2025-03-26  37   * Generate a mask for the specified type @t. Additional checks are made to
19408200c09485 Vincent Mailhol 2025-03-26  38   * guarantee the value returned fits in that type, relying on
19408200c09485 Vincent Mailhol 2025-03-26  39   * -Wshift-count-overflow compiler check to detect incompatible arguments.
19408200c09485 Vincent Mailhol 2025-03-26  40   * For example, all these create build errors or warnings:
19408200c09485 Vincent Mailhol 2025-03-26  41   *
19408200c09485 Vincent Mailhol 2025-03-26  42   * - GENMASK(15, 20): wrong argument order
19408200c09485 Vincent Mailhol 2025-03-26  43   * - GENMASK(72, 15): doesn't fit unsigned long
19408200c09485 Vincent Mailhol 2025-03-26  44   * - GENMASK_U32(33, 15): doesn't fit in a u32
19408200c09485 Vincent Mailhol 2025-03-26  45   */
19408200c09485 Vincent Mailhol 2025-03-26  46  #define GENMASK_TYPE(t, h, l)					\
19408200c09485 Vincent Mailhol 2025-03-26  47  	((t)(GENMASK_INPUT_CHECK(h, l) +			\
19408200c09485 Vincent Mailhol 2025-03-26 @48  	     (type_max(t) << (l) &				\
19408200c09485 Vincent Mailhol 2025-03-26  49  	      type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
19408200c09485 Vincent Mailhol 2025-03-26  50  

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