Messages in this thread | | | From | Christophe Leroy <> | Subject | Re: arch/powerpc/kernel/traps.c:1167:19: error: unused function '__parse_fpscr' | Date | Fri, 22 Sep 2023 12:32:51 +0000 |
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Le 20/09/2023 à 21:39, kernel test robot a écrit : > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: a229cf67ab851a6e92395f37ed141d065176575a > commit: ca13c130a43fe3ab625d22ada0a61e5c0b612229 powerpc/4xx: Remove WatchdogHandler() to fix no previous prototype error
Problem already exists before that commit.
Problem was introduced by commit Fixes: b6254ced4da6 ("powerpc/signal: Don't manage floating point regs when no FPU")
Christophe
> date: 5 weeks ago > config: powerpc-kilauea_defconfig (https://download.01.org/0day-ci/archive/20230921/202309210327.WkqSd5Bq-lkp@intel.com/config) > compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230921/202309210327.WkqSd5Bq-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/202309210327.WkqSd5Bq-lkp@intel.com/ > > All errors (new ones prefixed by >>): > >>> arch/powerpc/kernel/traps.c:1167:19: error: unused function '__parse_fpscr' [-Werror,-Wunused-function] > 1167 | static inline int __parse_fpscr(unsigned long fpscr) > | ^ > 1 error generated. > > > vim +/__parse_fpscr +1167 arch/powerpc/kernel/traps.c > > 14cf11af6cf608 Paul Mackerras 2005-09-26 1166 > 5fad293bcbd48d Kumar Gala 2007-02-07 @1167 static inline int __parse_fpscr(unsigned long fpscr) > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1168 { > aeb1c0f6ff18f5 Eric W. Biederman 2018-04-17 1169 int ret = FPE_FLTUNK; > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1170 > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1171 /* Invalid operation */ > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1172 if ((fpscr & FPSCR_VE) && (fpscr & FPSCR_VX)) > 5fad293bcbd48d Kumar Gala 2007-02-07 1173 ret = FPE_FLTINV; > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1174 > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1175 /* Overflow */ > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1176 else if ((fpscr & FPSCR_OE) && (fpscr & FPSCR_OX)) > 5fad293bcbd48d Kumar Gala 2007-02-07 1177 ret = FPE_FLTOVF; > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1178 > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1179 /* Underflow */ > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1180 else if ((fpscr & FPSCR_UE) && (fpscr & FPSCR_UX)) > 5fad293bcbd48d Kumar Gala 2007-02-07 1181 ret = FPE_FLTUND; > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1182 > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1183 /* Divide by zero */ > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1184 else if ((fpscr & FPSCR_ZE) && (fpscr & FPSCR_ZX)) > 5fad293bcbd48d Kumar Gala 2007-02-07 1185 ret = FPE_FLTDIV; > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1186 > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1187 /* Inexact result */ > dc1c1ca3dcd94c Stephen Rothwell 2005-10-01 1188 else if ((fpscr & FPSCR_XE) && (fpscr & FPSCR_XX)) > 5fad293bcbd48d Kumar Gala 2007-02-07 1189 ret = FPE_FLTRES; > 5fad293bcbd48d Kumar Gala 2007-02-07 1190 > 5fad293bcbd48d Kumar Gala 2007-02-07 1191 return ret; > 5fad293bcbd48d Kumar Gala 2007-02-07 1192 } > 5fad293bcbd48d Kumar Gala 2007-02-07 1193 > > :::::: The code at line 1167 was first introduced by commit > :::::: 5fad293bcbd48d9a2370020cf60e4b4a42559b12 [POWERPC] Fixup error handling when emulating a floating point instruction > > :::::: TO: Kumar Gala <galak@kernel.crashing.org> > :::::: CC: Kumar Gala <galak@kernel.crashing.org> >
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