linux-kernel - Re: [PATCH 06/10] riscv/vdso: Use generic union vdso_data

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Message-ID: <202402201410.g0YeFhx8-lkp@intel.com>
Date: Tue, 20 Feb 2024 14:45:13 +0800
From: kernel test robot <lkp@...el.com>
To: Anna-Maria Behnsen <anna-maria@...utronix.de>,
	linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Andy Lutomirski <luto@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Vincenzo Frascino <vincenzo.frascino@....com>,
	Anna-Maria Behnsen <anna-maria@...utronix.de>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 06/10] riscv/vdso: Use generic union vdso_data_store

Hi Anna-Maria,

kernel test robot noticed the following build errors:

[auto build test ERROR on s390/features]
[also build test ERROR on kees/for-next/execve arm64/for-next/core linus/master v6.8-rc5 next-20240219]
[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/Anna-Maria-Behnsen/vdso-helpers-Fix-grammar-in-comments/20240219-234251
base:   https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features
patch link:    https://lore.kernel.org/r/20240219153939.75719-7-anna-maria%40linutronix.de
patch subject: [PATCH 06/10] riscv/vdso: Use generic union vdso_data_store
config: riscv-allnoconfig (https://download.01.org/0day-ci/archive/20240220/202402201410.g0YeFhx8-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240220/202402201410.g0YeFhx8-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202402201410.g0YeFhx8-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/riscv/kernel/vdso.c:34:31: error: initialization of 'struct vdso_data *' from incompatible pointer type 'struct vdso_data (*)[2]' [-Werror=incompatible-pointer-types]
      34 | struct vdso_data *vdso_data = &vdso_data_store.data;
         |                               ^
   cc1: some warnings being treated as errors


vim +34 arch/riscv/kernel/vdso.c

78a743cd82a35c Tong Tiangen       2021-09-01  32  
2f3f68e0423414 Anna-Maria Behnsen 2024-02-19  33  static union vdso_data_store vdso_data_store __page_aligned_data;
ad5d1122b82fbd Vincent Chen       2020-06-09 @34  struct vdso_data *vdso_data = &vdso_data_store.data;
76d2a0493a17d4 Palmer Dabbelt     2017-07-10  35  

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