Re: [PATCH 2/3] selftests: lib.mk: Simplify TEST_GEN_MODS_DIR handling

[Marcos Paulo de Souza <mpdesouza@suse.com>]

On Mon, 19 Feb 2024 15:16:51 +0800 kernel test robot <lkp@intel.com> wrote:

> Hi Marcos,
> 
> kernel test robot noticed the following build warnings:
> 
> [auto build test WARNING on 345e8abe4c355bc24bab3f4a5634122e55be8665]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Marcos-Paulo-de-Souza/selftests-lib-mk-Do-not-process-TEST_GEN_MODS_DIR/20240216-021601
> base:   345e8abe4c355bc24bab3f4a5634122e55be8665
> patch link:    https://lore.kernel.org/r/20240215-lp-selftests-fixes-v1-2-89f4a6f5cddc%40suse.com
> patch subject: [PATCH 2/3] selftests: lib.mk: Simplify TEST_GEN_MODS_DIR handling
> compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240219/202402191502.dALlSRz0-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/202402191502.dALlSRz0-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
> >> Makefile:11: warning: overriding recipe for target 'all'
> >> ../lib.mk:62: warning: ignoring old recipe for target 'all'
>    make[1]: *** [../lib.mk:62: all] Error 2
>    Makefile:65: warning: overriding recipe for target 'emit_tests'
>    ../lib.mk:120: warning: ignoring old recipe for target 'emit_tests'
>    make[1]: *** No targets.  Stop.
>    make[1]: *** No targets.  Stop.
>    make[1]: *** No targets.  Stop.

I couldn't reproduce this one locally. Shuah, have you seen this issue in your
setup? I followed the steps to reproduce this issue (it's the same sequence
already reported in earlier patches...)

> 
> 
> vim +/all +11 Makefile
> 
> ^1da177e4c3f41 Linus Torvalds 2005-04-16   7  
> ^1da177e4c3f41 Linus Torvalds 2005-04-16   8  # *DOCUMENTATION*
> ^1da177e4c3f41 Linus Torvalds 2005-04-16   9  # To see a list of typical targets execute "make help"
> ^1da177e4c3f41 Linus Torvalds 2005-04-16  10  # More info can be located in ./README
> ^1da177e4c3f41 Linus Torvalds 2005-04-16 @11  # Comments in this file are targeted only to the developer, do not
> ^1da177e4c3f41 Linus Torvalds 2005-04-16  12  # expect to learn how to build the kernel reading this file.
> ^1da177e4c3f41 Linus Torvalds 2005-04-16  13  
> 
> -- 
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki