On Fri, Feb 26, 2021 at 6:20 AM Sami Tolvanen [off-list ref] wrote:

Hi Masahiro,

On Thu, Feb 25, 2021 at 12:07 PM Masahiro Yamada [off-list ref] wrote:

quoted

On Fri, Feb 26, 2021 at 3:47 AM kernel test robot [off-list ref] wrote:

quoted

Hi Masahiro,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on next-20210225]
[cannot apply to kbuild/for-next asm-generic/master arm64/for-next/core m68k/for-next openrisc/for-next hp-parisc/for-next arc/for-next uclinux-h8/h8300-next nios2/for-linus v5.11]
[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/Masahiro-Yamada/kbuild-build-speed-improvment-of-CONFIG_TRIM_UNUSED_KSYMS/20210226-000929
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 29c395c77a9a514c5857c45ceae2665e9bd99ac7
config: powerpc-mpc8313_rdb_defconfig (attached as .config)
compiler: powerpc-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/014940331790a8cd9bee92c7201494ec3217201e
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Masahiro-Yamada/kbuild-build-speed-improvment-of-CONFIG_TRIM_UNUSED_KSYMS/20210226-000929
        git checkout 014940331790a8cd9bee92c7201494ec3217201e
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc

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

All warnings (new ones prefixed by >>):

quoted

quoted

scripts/module.lds.S:7:5: warning: "CONFIG_TRIM_UNUSED_KSYMS" is not defined, evaluates to 0 [-Wundef]

Thanks. This should be #ifdef, of course.

I applied this series and changed these from #if to #ifdef, but I
still see the following build error with TRIM_UNUSED_KSYMS +
OF_UNITTEST:

In file included from drivers/of/unittest-data/testcases.dtb.S:1:
../include/asm-generic/vmlinux.lds.h:54:10: fatal error:
'generated/keep-ksyms.h' file not found
#include <generated/keep-ksyms.h>
         ^~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.

This is with x86_64_defconfig and scripts/config -e OF -e OF_UNITTEST
-e TRIM_UNUSED_KSYMS.

Sami

Thanks. I will fix it.
I will come back with v2
probably after v5.12-rc1 is tagged.





-- 
Best Regards
Masahiro Yamada