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Message-ID: <202410040721.upAHwZJm-lkp@intel.com>
Date: Fri, 4 Oct 2024 07:26:42 +0800
From: kernel test robot <lkp@...el.com>
To: David Lechner <dlechner@...libre.com>,
Jonathan Cameron <jic23@...nel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
Dan Williams <dan.j.williams@...el.com>,
David Lechner <dlechner@...libre.com>
Subject: Re: [PATCH] iio: core: make iio_device_claim_direct_mode()
__must_check
Hi David,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 431c39f6d3edbab14f48dbf37a58ccdc0ac3be1e]
url: https://github.com/intel-lab-lkp/linux/commits/David-Lechner/iio-core-make-iio_device_claim_direct_mode-__must_check/20241002-233644
base: 431c39f6d3edbab14f48dbf37a58ccdc0ac3be1e
patch link: https://lore.kernel.org/r/20241002-iio-must-check-claim-direct-v1-1-ab94ce728731%40baylibre.com
patch subject: [PATCH] iio: core: make iio_device_claim_direct_mode() __must_check
config: arm-randconfig-001-20241004 (https://download.01.org/0day-ci/archive/20241004/202410040721.upAHwZJm-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project fef3566a25ff0e34fb87339ba5e13eca17cec00f)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241004/202410040721.upAHwZJm-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/202410040721.upAHwZJm-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/iio/pressure/bmp280-regmap.c:6:
In file included from drivers/iio/pressure/bmp280.h:5:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:21:
In file included from include/linux/mm.h:2213:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
In file included from drivers/iio/pressure/bmp280-regmap.c:6:
In file included from drivers/iio/pressure/bmp280.h:7:
>> include/linux/iio/iio.h:669:50: warning: ignoring return value of function declared with 'warn_unused_result' attribute [-Wunused-result]
669 | DEFINE_GUARD(iio_claim_direct, struct iio_dev *, iio_device_claim_direct_mode(_T),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~
include/linux/cleanup.h:291:54: note: expanded from macro 'DEFINE_GUARD'
291 | DEFINE_CLASS(_name, _type, if (_T) { _unlock; }, ({ _lock; _T; }), _type _T); \
| ^~~~~
include/linux/cleanup.h:248:13: note: expanded from macro 'DEFINE_CLASS'
248 | { _type t = _init; return t; }
| ^~~~~
2 warnings generated.
--
In file included from drivers/iio/pressure/ms5611_core.c:14:
>> include/linux/iio/iio.h:669:50: warning: ignoring return value of function declared with 'warn_unused_result' attribute [-Wunused-result]
669 | DEFINE_GUARD(iio_claim_direct, struct iio_dev *, iio_device_claim_direct_mode(_T),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~
include/linux/cleanup.h:291:54: note: expanded from macro 'DEFINE_GUARD'
291 | DEFINE_CLASS(_name, _type, if (_T) { _unlock; }, ({ _lock; _T; }), _type _T); \
| ^~~~~
include/linux/cleanup.h:248:13: note: expanded from macro 'DEFINE_CLASS'
248 | { _type t = _init; return t; }
| ^~~~~
In file included from drivers/iio/pressure/ms5611_core.c:16:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:21:
In file included from include/linux/mm.h:2213:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
2 warnings generated.
--
In file included from drivers/iio/pressure/mpl115.c:11:
>> include/linux/iio/iio.h:669:50: warning: ignoring return value of function declared with 'warn_unused_result' attribute [-Wunused-result]
669 | DEFINE_GUARD(iio_claim_direct, struct iio_dev *, iio_device_claim_direct_mode(_T),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~
include/linux/cleanup.h:291:54: note: expanded from macro 'DEFINE_GUARD'
291 | DEFINE_CLASS(_name, _type, if (_T) { _unlock; }, ({ _lock; _T; }), _type _T); \
| ^~~~~
include/linux/cleanup.h:248:13: note: expanded from macro 'DEFINE_CLASS'
248 | { _type t = _init; return t; }
| ^~~~~
1 warning generated.
vim +/warn_unused_result +669 include/linux/iio/iio.h
1dae0cb79ceacb Jonathan Cameron 2024-01-28 664
1dae0cb79ceacb Jonathan Cameron 2024-01-28 665 /*
1dae0cb79ceacb Jonathan Cameron 2024-01-28 666 * This autocleanup logic is normally used via
1dae0cb79ceacb Jonathan Cameron 2024-01-28 667 * iio_device_claim_direct_scoped().
1dae0cb79ceacb Jonathan Cameron 2024-01-28 668 */
1dae0cb79ceacb Jonathan Cameron 2024-01-28 @669 DEFINE_GUARD(iio_claim_direct, struct iio_dev *, iio_device_claim_direct_mode(_T),
1dae0cb79ceacb Jonathan Cameron 2024-01-28 670 iio_device_release_direct_mode(_T))
1dae0cb79ceacb Jonathan Cameron 2024-01-28 671
--
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https://github.com/intel/lkp-tests/wiki
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