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SubjectRe: [PATCH v3] sh: Use generic GCC library routines
Hi Geert,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.3-rc4 next-20230327]
[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/Geert-Uytterhoeven/sh-Use-generic-GCC-library-routines/20230323-181932
patch link: https://lore.kernel.org/r/74dbe68dc8e2ffb6180092f73723fe21ab692c7a.1679566500.git.geert%2Brenesas%40glider.be
patch subject: [PATCH v3] sh: Use generic GCC library routines
config: sh-allnoconfig (https://download.01.org/0day-ci/archive/20230327/202303272214.RxzpA6bP-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 12.1.0
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/intel-lab-lkp/linux/commit/f81d82f320398d37e233429781ed14069e3eaf53
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Geert-Uytterhoeven/sh-Use-generic-GCC-library-routines/20230323-181932
git checkout f81d82f320398d37e233429781ed14069e3eaf53
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303272214.RxzpA6bP-lkp@intel.com/

Note: functions only called from assembly code should be annotated with the asmlinkage attribute
All warnings (new ones prefixed by >>):

In file included from arch/sh/boot/compressed/ashldi3.c:2:
>> arch/sh/boot/compressed/../../../../lib/ashldi3.c:9:19: warning: no previous prototype for '__ashldi3' [-Wmissing-prototypes]
9 | long long notrace __ashldi3(long long u, word_type b)
| ^~~~~~~~~


vim +/__ashldi3 +9 arch/sh/boot/compressed/../../../../lib/ashldi3.c

b35cd9884fa5d8 Palmer Dabbelt 2017-05-23 8
b35cd9884fa5d8 Palmer Dabbelt 2017-05-23 @9 long long notrace __ashldi3(long long u, word_type b)

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

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