linux-kernel - Re: [PATCH] hwrng: add Zhaoxin HW RNG driver

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Message-ID: <202307270707.SlAbd4tx-lkp@intel.com>
Date:   Thu, 27 Jul 2023 07:26:16 +0800
From:   kernel test robot <lkp@...el.com>
To:     LeoLiu-oc <LeoLiu-oc@...oxin.com>, olivia@...enic.com,
        herbert@...dor.apana.org.au, jiajie.ho@...rfivetech.com,
        conor.dooley@...rochip.com, martin@...ser.cx, mmyangfl@...il.com,
        jenny.zhang@...rfivetech.com, linux-kernel@...r.kernel.org,
        linux-crypto@...r.kernel.org
Cc:     oe-kbuild-all@...ts.linux.dev, leoliu@...oxin.com,
        CobeChen@...oxin.com, YunShen@...oxin.com, TonyWWang@...oxin.com,
        leoliu-oc <leoliu-oc@...oxin.com>
Subject: Re: [PATCH] hwrng: add Zhaoxin HW RNG driver

Hi LeoLiu-oc,

kernel test robot noticed the following build errors:

[auto build test ERROR on char-misc/char-misc-testing]
[also build test ERROR on char-misc/char-misc-next char-misc/char-misc-linus herbert-cryptodev-2.6/master linus/master v6.5-rc3 next-20230726]
[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/LeoLiu-oc/hwrng-add-Zhaoxin-HW-RNG-driver/20230726-193710
base:   char-misc/char-misc-testing
patch link:    https://lore.kernel.org/r/20230726113553.1965627-1-LeoLiu-oc%40zhaoxin.com
patch subject: [PATCH] hwrng: add Zhaoxin HW RNG driver
config: i386-randconfig-r006-20230726 (https://download.01.org/0day-ci/archive/20230727/202307270707.SlAbd4tx-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230727/202307270707.SlAbd4tx-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/202307270707.SlAbd4tx-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/char/hw_random/zhaoxin-rng.c: Assembler messages:
>> drivers/char/hw_random/zhaoxin-rng.c:57: Error: bad register name `%rcx'
>> drivers/char/hw_random/zhaoxin-rng.c:58: Error: bad register name `%rdx'
>> drivers/char/hw_random/zhaoxin-rng.c:59: Error: bad register name `%rdi'


vim +57 drivers/char/hw_random/zhaoxin-rng.c

    54	
    55	static inline int rep_xstore(size_t size, size_t factor, void *result)
    56	{
  > 57		__asm__ __volatile__ (
  > 58		"movq %0, %%rcx\n"
  > 59		"movq %1, %%rdx\n"
    60		"movq %2, %%rdi\n"
    61		".byte 0xf3, 0x0f, 0xa7, 0xc0"
    62		:
    63		: "r"(size), "r"(factor), "r"(result)
    64		: "%rcx", "%rdx", "%rdi", "memory");
    65	
    66		return 0;
    67	}
    68	

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