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From: kernel test robot <lkp@intel.com>
To: Yuqian Yang <yangyuqian@uniontech.com>,
	Huacai Chen <chenhuacai@kernel.org>
Cc: oe-kbuild-all@lists.linux.dev, WANG Xuerui <kernel@xen0n.name>,
	Cheng Nie <niecheng1@uniontech.com>,
	Wentao Guan <guanwentao@uniontech.com>,
	Dandan Zhang <zhangdandan@uniontech.com>,
	loongarch@lists.linux.dev, linux-kernel@vger.kernel.org,
	Yuqian Yang <yangyuqian@uniontech.com>
Subject: Re: [PATCH] loongarch: improve logging of disabling KASLR.
Date: Sun, 12 Apr 2026 12:42:39 +0800	[thread overview]
Message-ID: <202604121225.WqIkc3ZK-lkp@intel.com> (raw)
In-Reply-To: <E4B91143DC525DC6+20260403063008.94237-1-yangyuqian@uniontech.com>

Hi Yuqian,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v7.0-rc7 next-20260410]
[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/Yuqian-Yang/loongarch-improve-logging-of-disabling-KASLR/20260412-053808
base:   linus/master
patch link:    https://lore.kernel.org/r/E4B91143DC525DC6%2B20260403063008.94237-1-yangyuqian%40uniontech.com
patch subject: [PATCH] loongarch: improve logging of disabling KASLR.
config: loongarch-randconfig-002-20260412 (https://download.01.org/0day-ci/archive/20260412/202604121225.WqIkc3ZK-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260412/202604121225.WqIkc3ZK-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/202604121225.WqIkc3ZK-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/asm-generic/bug.h:31,
                    from arch/loongarch/include/asm/bug.h:60,
                    from include/linux/bug.h:5,
                    from include/linux/instrumented.h:10,
                    from include/linux/atomic/atomic-instrumented.h:17,
                    from include/linux/atomic.h:82,
                    from include/asm-generic/bitops/atomic.h:5,
                    from arch/loongarch/include/asm/bitops.h:38,
                    from include/linux/bitops.h:67,
                    from include/linux/bitmap.h:8,
                    from include/linux/nodemask.h:91,
                    from include/linux/list_lru.h:12,
                    from include/linux/fs/super_types.h:7,
                    from include/linux/fs/super.h:5,
                    from include/linux/fs.h:5,
                    from arch/loongarch/include/asm/elf.h:9,
                    from include/linux/elf.h:6,
                    from arch/loongarch/kernel/relocate.c:8:
   arch/loongarch/kernel/relocate.c: In function 'kaslr_disabled':
   arch/loongarch/kernel/relocate.c:144:25: error: expected ')' before 'message'
     144 |                 pr_info(message, "nokaslr", "built-in");
         |                         ^~~~~~~
   include/linux/printk.h:483:25: note: in definition of macro 'printk_index_wrap'
     483 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                         ^~~~
   include/linux/printk.h:584:9: note: in expansion of macro 'printk'
     584 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~
   include/linux/printk.h:584:26: note: in expansion of macro 'pr_fmt'
     584 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |                          ^~~~~~
   arch/loongarch/kernel/relocate.c:144:17: note: in expansion of macro 'pr_info'
     144 |                 pr_info(message, "nokaslr", "built-in");
         |                 ^~~~~~~
   include/linux/printk.h:483:24: note: to match this '('
     483 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                        ^
   include/linux/printk.h:511:26: note: in expansion of macro 'printk_index_wrap'
     511 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
         |                          ^~~~~~~~~~~~~~~~~
   include/linux/printk.h:584:9: note: in expansion of macro 'printk'
     584 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~
   arch/loongarch/kernel/relocate.c:144:17: note: in expansion of macro 'pr_info'
     144 |                 pr_info(message, "nokaslr", "built-in");
         |                 ^~~~~~~
   arch/loongarch/kernel/relocate.c:150:25: error: expected ')' before 'message'
     150 |                 pr_info(message, "nokaslr", "boot");
         |                         ^~~~~~~
   include/linux/printk.h:483:25: note: in definition of macro 'printk_index_wrap'
     483 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                         ^~~~
   include/linux/printk.h:584:9: note: in expansion of macro 'printk'
     584 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~
   include/linux/printk.h:584:26: note: in expansion of macro 'pr_fmt'
     584 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |                          ^~~~~~
   arch/loongarch/kernel/relocate.c:150:17: note: in expansion of macro 'pr_info'
     150 |                 pr_info(message, "nokaslr", "boot");
         |                 ^~~~~~~
   include/linux/printk.h:483:24: note: to match this '('
     483 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                        ^
   include/linux/printk.h:511:26: note: in expansion of macro 'printk_index_wrap'
     511 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
         |                          ^~~~~~~~~~~~~~~~~
   include/linux/printk.h:584:9: note: in expansion of macro 'printk'
     584 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~
   arch/loongarch/kernel/relocate.c:150:17: note: in expansion of macro 'pr_info'
     150 |                 pr_info(message, "nokaslr", "boot");
         |                 ^~~~~~~
   arch/loongarch/kernel/relocate.c:186:25: error: expected ')' before 'message'
     186 |                 pr_info(message, "kexec_file", "boot");
         |                         ^~~~~~~
   include/linux/printk.h:483:25: note: in definition of macro 'printk_index_wrap'
     483 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                         ^~~~
   include/linux/printk.h:584:9: note: in expansion of macro 'printk'
     584 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~
   include/linux/printk.h:584:26: note: in expansion of macro 'pr_fmt'
     584 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |                          ^~~~~~
   arch/loongarch/kernel/relocate.c:186:17: note: in expansion of macro 'pr_info'
     186 |                 pr_info(message, "kexec_file", "boot");
         |                 ^~~~~~~
   include/linux/printk.h:483:24: note: to match this '('
     483 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                        ^
   include/linux/printk.h:511:26: note: in expansion of macro 'printk_index_wrap'
     511 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
         |                          ^~~~~~~~~~~~~~~~~
   include/linux/printk.h:584:9: note: in expansion of macro 'printk'
     584 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~
   arch/loongarch/kernel/relocate.c:186:17: note: in expansion of macro 'pr_info'
     186 |                 pr_info(message, "kexec_file", "boot");
         |                 ^~~~~~~
>> arch/loongarch/kernel/relocate.c:140:27: warning: unused variable 'message' [-Wunused-variable]
     140 |         const char *const message = "KASLR is disabled by %s in %s cmdline.\n";
         |                           ^~~~~~~


vim +/message +140 arch/loongarch/kernel/relocate.c

   135	
   136	static inline __init bool kaslr_disabled(void)
   137	{
   138		char *str;
   139		const char *builtin_cmdline = CONFIG_CMDLINE;
 > 140		const char *const message = "KASLR is disabled by %s in %s cmdline.\n";
   141	
   142		str = strstr(builtin_cmdline, "nokaslr");
   143		if (str == builtin_cmdline || (str > builtin_cmdline && *(str - 1) == ' ')) {
   144			pr_info(message, "nokaslr", "built-in");
   145			return true;
   146		}
   147	
   148		str = strstr(boot_command_line, "nokaslr");
   149		if (str == boot_command_line || (str > boot_command_line && *(str - 1) == ' ')) {
   150			pr_info(message, "nokaslr", "boot");
   151			return true;
   152		}
   153	

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

  reply	other threads:[~2026-04-12  4:43 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-03  6:30 Yuqian Yang
2026-04-12  4:42 ` kernel test robot [this message]
2026-04-12  8:58 ` kernel test robot
2026-04-13  8:29 ` kernel test robot

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