arch/powerpc/math-emu/fsqrts.c:39:2: warning: variable '_FP_PACK_CANONICAL_T_e' set but not used

arch/powerpc/math-emu/fsqrts.c:39:2: warning: variable '_FP_PACK_CANONICAL_T_e' set but not used

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   7a78f7ba9f24962c8033e0152bf34a7903ff61ba
commit: b74843b38da8f1186fd7d447646c835b47096a15 alpha: determine tininess after rounding in the FP emulation
date:   3 days ago
config: powerpc64-randconfig-r2103-20261023 (https://download.01.org/0day-ci/archive/20261023/202610232211.PH7EKsOW-lkp@intel.com/config)
compiler: clang version 21.1.6 (https://github.com/llvm/llvm-project a832a5222e489298337fbb5876f8dcaf072c5cca)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261023/202610232211.PH7EKsOW-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
| Fixes: b74843b38da8 ("alpha: determine tininess after rounding in the FP emulation")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610232211.PH7EKsOW-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/powerpc/math-emu/fsqrts.c:39:2: warning: variable '_FP_PACK_CANONICAL_T_e' set but not used [-Wunused-but-set-variable]
      39 |         __FP_PACK_DS(frD, R);
         |         ^
   arch/powerpc/include/asm/sfp-machine.h:185:5: note: expanded from macro '__FP_PACK_DS'
     185 |            _FP_PACK_CANONICAL(S, 1, __X);                                       \
         |            ^
   include/math-emu/op-common.h:145:6: note: expanded from macro '_FP_PACK_CANONICAL'
     145 |             FP_DECL_##fs(_FP_PACK_CANONICAL_T);                 \
         |             ^
   <scratch space>:29:1: note: expanded from here
      29 | FP_DECL_S
         | ^
   include/math-emu/single.h:62:23: note: expanded from macro 'FP_DECL_S'
      62 | #define FP_DECL_S(X)            _FP_DECL(1,X)
         |                                 ^
   include/math-emu/op-common.h:28:32: note: expanded from macro '_FP_DECL'
      28 |   _FP_I_TYPE X##_c=0, X##_s=0, X##_e=0; \
         |                                ^
   <scratch space>:32:1: note: expanded from here
      32 | _FP_PACK_CANONICAL_T_e
         | ^
>> arch/powerpc/math-emu/fsqrts.c:39:2: warning: variable '_FP_PACK_CANONICAL_T_e' set but not used [-Wunused-but-set-variable]
   arch/powerpc/include/asm/sfp-machine.h:189:6: note: expanded from macro '__FP_PACK_DS'
     189 |                    _FP_PACK_CANONICAL(D, 2, X);                                 \
         |                    ^
   include/math-emu/op-common.h:145:6: note: expanded from macro '_FP_PACK_CANONICAL'
     145 |             FP_DECL_##fs(_FP_PACK_CANONICAL_T);                 \
         |             ^
   <scratch space>:87:1: note: expanded from here
      87 | FP_DECL_D
         | ^
   include/math-emu/double.h:73:23: note: expanded from macro 'FP_DECL_D'
      73 | #define FP_DECL_D(X)            _FP_DECL(2,X)
         |                                 ^
   include/math-emu/op-common.h:28:32: note: expanded from macro '_FP_DECL'
      28 |   _FP_I_TYPE X##_c=0, X##_s=0, X##_e=0; \
         |                                ^
   <scratch space>:90:1: note: expanded from here
      90 | _FP_PACK_CANONICAL_T_e
         | ^
   2 warnings generated.
--
>> arch/powerpc/math-emu/fsqrt.c:38:2: warning: variable '_FP_PACK_CANONICAL_T_e' set but not used [-Wunused-but-set-variable]
      38 |         __FP_PACK_D(frD, R);
         |         ^
   arch/powerpc/include/asm/sfp-machine.h:176:2: note: expanded from macro '__FP_PACK_D'
     176 |         _FP_PACK_CANONICAL(D, 2, X);                                    \
         |         ^
   include/math-emu/op-common.h:145:6: note: expanded from macro '_FP_PACK_CANONICAL'
     145 |             FP_DECL_##fs(_FP_PACK_CANONICAL_T);                 \
         |             ^
   <scratch space>:19:1: note: expanded from here
      19 | FP_DECL_D
         | ^
   include/math-emu/double.h:73:23: note: expanded from macro 'FP_DECL_D'
      73 | #define FP_DECL_D(X)            _FP_DECL(2,X)
         |                                 ^
   include/math-emu/op-common.h:28:32: note: expanded from macro '_FP_DECL'
      28 |   _FP_I_TYPE X##_c=0, X##_s=0, X##_e=0; \
         |                                ^
   <scratch space>:22:1: note: expanded from here
      22 | _FP_PACK_CANONICAL_T_e
         | ^
   1 warning generated.


vim +/_FP_PACK_CANONICAL_T_e +39 arch/powerpc/math-emu/fsqrts.c

^1da177e4c3f415 arch/ppc/math-emu/fsqrts.c     Linus Torvalds 2005-04-16  38  
d2b194ed820880e arch/powerpc/math-emu/fsqrts.c Kumar Gala     2008-06-04 @39  	__FP_PACK_DS(frD, R);

:::::: The code at line 39 was first introduced by commit
:::::: d2b194ed820880eb19c43b9c10d9f5f30026ee54 powerpc/math-emu: Use kernel generic math-emu code

:::::: TO: Kumar Gala <galak@kernel.crashing.org>
:::::: CC: Kumar Gala <galak@kernel.crashing.org>

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