Re: [PATCH] drm/simpledrm: Add support for multiple "power-domains"

From: kernel test robot
Date: Sun Sep 10 2023 - 14:30:52 EST

Hi Janne,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 15d30b46573d75f5cb58cfacded8ebab9c76a2b0]

url: https://github.com/intel-lab-lkp/linux/commits/Janne-Grunau-via-B4-Relay/drm-simpledrm-Add-support-for-multiple-power-domains/20230911-004026
base: 15d30b46573d75f5cb58cfacded8ebab9c76a2b0
patch link: https://lore.kernel.org/r/20230910-simpledrm-multiple-power-domains-v1-1-f8718aefc685%40jannau.net
patch subject: [PATCH] drm/simpledrm: Add support for multiple "power-domains"
config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20230911/202309110206.wDXP9YXl-lkp@xxxxxxxxx/config)
compiler: loongarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230911/202309110206.wDXP9YXl-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309110206.wDXP9YXl-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

In file included from include/linux/device.h:15,
from include/linux/acpi.h:14,
from include/linux/i2c.h:13,
from include/uapi/linux/fb.h:6,
from include/linux/fb.h:7,
from include/linux/platform_data/simplefb.h:12,
from drivers/gpu/drm/tiny/simpledrm.c:7:
drivers/gpu/drm/tiny/simpledrm.c: In function 'simpledrm_device_detach_genpd':
>> include/drm/drm_print.h:456:39: warning: ' ' flag used with '%p' gnu_printf format [-Wformat=]
456 | dev_##level##type((drm)->dev, "[drm] " fmt, ##__VA_ARGS__)
| ^~~~~~~~
include/linux/dev_printk.h:110:30: note: in definition of macro 'dev_printk_index_wrap'
110 | _p_func(dev, fmt, ##__VA_ARGS__); \
| ^~~
include/linux/dev_printk.h:144:56: note: in expansion of macro 'dev_fmt'
144 | dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~
include/drm/drm_print.h:456:9: note: in expansion of macro 'dev_err'
456 | dev_##level##type((drm)->dev, "[drm] " fmt, ##__VA_ARGS__)
| ^~~~
include/drm/drm_print.h:469:9: note: in expansion of macro '__drm_printk'
469 | __drm_printk((drm), err,, "*ERROR* " fmt, ##__VA_ARGS__)
| ^~~~~~~~~~~~
drivers/gpu/drm/tiny/simpledrm.c:506:9: note: in expansion of macro 'drm_err'
506 | drm_err(&sdev->dev, "% power-domains count:%d\n", __func__, sdev->pwr_dom_count);
| ^~~~~~~


vim +456 include/drm/drm_print.h

e820f52577b14c6 Jim Cromie 2022-09-11 416
02c9656b2f0d699 Haneen Mohammed 2017-10-17 417 /**
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 418 * DRM_DEV_DEBUG() - Debug output for generic drm code
02c9656b2f0d699 Haneen Mohammed 2017-10-17 419 *
306589856399e18 Douglas Anderson 2021-09-21 420 * NOTE: this is deprecated in favor of drm_dbg_core().
306589856399e18 Douglas Anderson 2021-09-21 421 *
091756bbb1a9613 Haneen Mohammed 2017-10-17 422 * @dev: device pointer
091756bbb1a9613 Haneen Mohammed 2017-10-17 423 * @fmt: printf() like format string.
02c9656b2f0d699 Haneen Mohammed 2017-10-17 424 */
db87086492581c8 Joe Perches 2018-03-16 425 #define DRM_DEV_DEBUG(dev, fmt, ...) \
db87086492581c8 Joe Perches 2018-03-16 426 drm_dev_dbg(dev, DRM_UT_CORE, fmt, ##__VA_ARGS__)
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 427 /**
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 428 * DRM_DEV_DEBUG_DRIVER() - Debug output for vendor specific part of the driver
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 429 *
306589856399e18 Douglas Anderson 2021-09-21 430 * NOTE: this is deprecated in favor of drm_dbg() or dev_dbg().
306589856399e18 Douglas Anderson 2021-09-21 431 *
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 432 * @dev: device pointer
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 433 * @fmt: printf() like format string.
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 434 */
db87086492581c8 Joe Perches 2018-03-16 435 #define DRM_DEV_DEBUG_DRIVER(dev, fmt, ...) \
db87086492581c8 Joe Perches 2018-03-16 436 drm_dev_dbg(dev, DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 437 /**
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 438 * DRM_DEV_DEBUG_KMS() - Debug output for modesetting code
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 439 *
306589856399e18 Douglas Anderson 2021-09-21 440 * NOTE: this is deprecated in favor of drm_dbg_kms().
306589856399e18 Douglas Anderson 2021-09-21 441 *
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 442 * @dev: device pointer
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 443 * @fmt: printf() like format string.
b52817e9de06a3a Mauro Carvalho Chehab 2020-10-27 444 */
db87086492581c8 Joe Perches 2018-03-16 445 #define DRM_DEV_DEBUG_KMS(dev, fmt, ...) \
db87086492581c8 Joe Perches 2018-03-16 446 drm_dev_dbg(dev, DRM_UT_KMS, fmt, ##__VA_ARGS__)
a18b21929453af7 Lyude Paul 2018-07-16 447
fb6c7ab8718eb25 Jani Nikula 2019-12-10 448 /*
fb6c7ab8718eb25 Jani Nikula 2019-12-10 449 * struct drm_device based logging
fb6c7ab8718eb25 Jani Nikula 2019-12-10 450 *
fb6c7ab8718eb25 Jani Nikula 2019-12-10 451 * Prefer drm_device based logging over device or prink based logging.
fb6c7ab8718eb25 Jani Nikula 2019-12-10 452 */
fb6c7ab8718eb25 Jani Nikula 2019-12-10 453
fb6c7ab8718eb25 Jani Nikula 2019-12-10 454 /* Helper for struct drm_device based logging. */
fb6c7ab8718eb25 Jani Nikula 2019-12-10 455 #define __drm_printk(drm, level, type, fmt, ...) \
fb6c7ab8718eb25 Jani Nikula 2019-12-10 @456 dev_##level##type((drm)->dev, "[drm] " fmt, ##__VA_ARGS__)
fb6c7ab8718eb25 Jani Nikula 2019-12-10 457
fb6c7ab8718eb25 Jani Nikula 2019-12-10 458

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