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From: kernel test robot <lkp@intel.com>
To: Zhang Rui <rui.zhang@intel.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-acpi@vger.kernel.org,
	devel@acpica.org, linux-pm@vger.kernel.org,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>
Subject: [rafael-pm:bleeding-edge 44/56] drivers/acpi/processor_idle.c:464:22: warning: unused variable 'i'
Date: Thu, 10 Apr 2025 11:51:46 +0800	[thread overview]
Message-ID: <202504101132.pgiDBR2Q-lkp@intel.com> (raw)

Hi Zhang,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge
head:   655d33f14d6cebcf46e422bcb9d225d791bba42f
commit: 8ea9d119e7c666b6d87697af1b69193354c865d1 [44/56] ACPI: processor: idle: Remove redundant pr->power.count assignment
config: i386-buildonly-randconfig-003-20250409 (https://download.01.org/0day-ci/archive/20250410/202504101132.pgiDBR2Q-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250410/202504101132.pgiDBR2Q-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/202504101132.pgiDBR2Q-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/acpi/processor_idle.c: In function 'acpi_processor_get_cstate_info':
>> drivers/acpi/processor_idle.c:464:22: warning: unused variable 'i' [-Wunused-variable]
     464 |         unsigned int i;
         |                      ^


vim +/i +464 drivers/acpi/processor_idle.c

^1da177e4c3f415 Linus Torvalds      2005-04-16  461  
a36a7fecfe60717 Sudeep Holla        2016-07-21  462  static int acpi_processor_get_cstate_info(struct acpi_processor *pr)
^1da177e4c3f415 Linus Torvalds      2005-04-16  463  {
^1da177e4c3f415 Linus Torvalds      2005-04-16 @464  	unsigned int i;
^1da177e4c3f415 Linus Torvalds      2005-04-16  465  	int result;
^1da177e4c3f415 Linus Torvalds      2005-04-16  466  
^1da177e4c3f415 Linus Torvalds      2005-04-16  467  
^1da177e4c3f415 Linus Torvalds      2005-04-16  468  	/* NOTE: the idle thread may not be running while calling
^1da177e4c3f415 Linus Torvalds      2005-04-16  469  	 * this function */
^1da177e4c3f415 Linus Torvalds      2005-04-16  470  
991528d73486679 Venkatesh Pallipadi 2006-09-25  471  	/* Zero initialize all the C-states info. */
991528d73486679 Venkatesh Pallipadi 2006-09-25  472  	memset(pr->power.states, 0, sizeof(pr->power.states));
991528d73486679 Venkatesh Pallipadi 2006-09-25  473  
^1da177e4c3f415 Linus Torvalds      2005-04-16  474  	result = acpi_processor_get_power_info_cst(pr);
6d93c64803a5fea Venkatesh Pallipadi 2005-09-15  475  	if (result == -ENODEV)
c5a114f1fb2d3c5 Darrick J. Wong     2006-10-19  476  		result = acpi_processor_get_power_info_fadt(pr);
6d93c64803a5fea Venkatesh Pallipadi 2005-09-15  477  
991528d73486679 Venkatesh Pallipadi 2006-09-25  478  	if (result)
991528d73486679 Venkatesh Pallipadi 2006-09-25  479  		return result;
991528d73486679 Venkatesh Pallipadi 2006-09-25  480  
991528d73486679 Venkatesh Pallipadi 2006-09-25  481  	acpi_processor_get_power_info_default(pr);
991528d73486679 Venkatesh Pallipadi 2006-09-25  482  
cf82478840188f8 Janosch Machowinski 2005-08-20  483  	pr->power.count = acpi_processor_power_verify(pr);
8fa2f8bd6ad10ec Zhang Rui           2025-04-09  484  	pr->flags.power = 1;
^1da177e4c3f415 Linus Torvalds      2005-04-16  485  
d550d98d3317378 Patrick Mochel      2006-06-27  486  	return 0;
^1da177e4c3f415 Linus Torvalds      2005-04-16  487  }
^1da177e4c3f415 Linus Torvalds      2005-04-16  488  

:::::: The code at line 464 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>

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

             reply	other threads:[~2025-04-10  3:52 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-10  3:51 kernel test robot [this message]
2025-04-10  7:56 ` [rafael-pm:bleeding-edge 44/56] drivers/acpi/processor_idle.c:464:22: warning: unused variable 'i' Zhang, Rui
2025-04-10 12:18   ` Rafael J. Wysocki

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