Re: [PATCH 1/2] MIPS: cpu-probe: move fpu probing/handling into its own file

From: kernel test robot
Date: Thu Oct 08 2020 - 15:04:25 EST


Hi Thomas,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linux/master]
[also build test WARNING on linus/master v5.9-rc8 next-20201008]
[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]

url: https://github.com/0day-ci/linux/commits/Thomas-Bogendoerfer/MIPS-cpu-probe-move-fpu-probing-handling-into-its-own-file/20201009-002949
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git bcf876870b95592b52519ed4aafcf9d95999bc9c
config: mips-allyesconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 9.3.0
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://github.com/0day-ci/linux/commit/9bcc7c604b60699121267371426a9c9ee8559b31
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Thomas-Bogendoerfer/MIPS-cpu-probe-move-fpu-probing-handling-into-its-own-file/20201009-002949
git checkout 9bcc7c604b60699121267371426a9c9ee8559b31
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips

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

All warnings (new ones prefixed by >>):

>> arch/mips/kernel/fpu-probe.c:41:5: warning: no previous prototype for '__cpu_has_fpu' [-Wmissing-prototypes]
41 | int __cpu_has_fpu(void)
| ^~~~~~~~~~~~~
>> arch/mips/kernel/fpu-probe.c:273:6: warning: no previous prototype for 'cpu_set_fpu_opts' [-Wmissing-prototypes]
273 | void cpu_set_fpu_opts(struct cpuinfo_mips *c)
| ^~~~~~~~~~~~~~~~
>> arch/mips/kernel/fpu-probe.c:298:6: warning: no previous prototype for 'cpu_set_nofpu_opts' [-Wmissing-prototypes]
298 | void cpu_set_nofpu_opts(struct cpuinfo_mips *c)
| ^~~~~~~~~~~~~~~~~~

vim +/__cpu_has_fpu +41 arch/mips/kernel/fpu-probe.c

37
38 /*
39 * Check if the CPU has an external FPU.
40 */
> 41 int __cpu_has_fpu(void)
42 {
43 return (cpu_get_fpu_id() & FPIR_IMP_MASK) != FPIR_IMP_NONE;
44 }
45

---
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