* [rafael-pm:bleeding-edge 44/56] drivers/acpi/processor_idle.c:464:22: warning: unused variable 'i'
@ 2025-04-10 3:51 kernel test robot
2025-04-10 7:56 ` Zhang, Rui
0 siblings, 1 reply; 3+ messages in thread
From: kernel test robot @ 2025-04-10 3:51 UTC (permalink / raw)
To: Zhang Rui; +Cc: oe-kbuild-all, linux-acpi, devel, linux-pm, Rafael J. Wysocki
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
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [rafael-pm:bleeding-edge 44/56] drivers/acpi/processor_idle.c:464:22: warning: unused variable 'i'
2025-04-10 3:51 [rafael-pm:bleeding-edge 44/56] drivers/acpi/processor_idle.c:464:22: warning: unused variable 'i' kernel test robot
@ 2025-04-10 7:56 ` Zhang, Rui
2025-04-10 12:18 ` Rafael J. Wysocki
0 siblings, 1 reply; 3+ messages in thread
From: Zhang, Rui @ 2025-04-10 7:56 UTC (permalink / raw)
To: lkp
Cc: linux-pm@vger.kernel.org, devel@acpica.org,
oe-kbuild-all@lists.linux.dev, linux-acpi@vger.kernel.org,
rjw@rjwysocki.net
On Thu, 2025-04-10 at 11:51 +0800, kernel test robot wrote:
> Hi Zhang,
>
> FYI, the error/warning was bisected to this commit, please ignore it if
> it's irrelevant.
yes, this is a valid report.
Rafael,
Do I need to send an updated patch or you will handle this directly?
thanks,
rui
>
> tree:
> https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git ble
> eding-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>
>
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [rafael-pm:bleeding-edge 44/56] drivers/acpi/processor_idle.c:464:22: warning: unused variable 'i'
2025-04-10 7:56 ` Zhang, Rui
@ 2025-04-10 12:18 ` Rafael J. Wysocki
0 siblings, 0 replies; 3+ messages in thread
From: Rafael J. Wysocki @ 2025-04-10 12:18 UTC (permalink / raw)
To: Zhang, Rui
Cc: lkp, linux-pm@vger.kernel.org, devel@acpica.org,
oe-kbuild-all@lists.linux.dev, linux-acpi@vger.kernel.org,
rjw@rjwysocki.net
On Thu, Apr 10, 2025 at 9:56 AM Zhang, Rui <rui.zhang@intel.com> wrote:
>
> On Thu, 2025-04-10 at 11:51 +0800, kernel test robot wrote:
> > Hi Zhang,
> >
> > FYI, the error/warning was bisected to this commit, please ignore it if
> > it's irrelevant.
>
> yes, this is a valid report.
>
> Rafael,
> Do I need to send an updated patch or you will handle this directly?
I've fixed it up locally, thanks!
^ permalink raw reply [flat|nested] 3+ messages in thread
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2025-04-10 3:51 [rafael-pm:bleeding-edge 44/56] drivers/acpi/processor_idle.c:464:22: warning: unused variable 'i' kernel test robot
2025-04-10 7:56 ` Zhang, Rui
2025-04-10 12:18 ` Rafael J. Wysocki
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