Re: [PATCH v4 2/2] spi: pxa2xx: restore LPSS private register state on S3 resume
From: kernel test robot
Date: Tue Aug 04 2026 - 20:37:05 EST
Hi Shih-Yuan,
kernel test robot noticed the following build warnings:
[auto build test WARNING on broonie-spi/for-next]
[also build test WARNING on linus/master v7.2-rc6 next-20260804]
[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/Shih-Yuan-Lee/spi-pxa2xx-disable-DMA-and-fix-runtime-PM-for-Apple-MacBook8-1/20260804-222537
base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
patch link: https://lore.kernel.org/r/20260717163731.6782-3-fourdollars%40debian.org
patch subject: [PATCH v4 2/2] spi: pxa2xx: restore LPSS private register state on S3 resume
config: x86_64-rhel-9.4-bpf (https://download.01.org/0day-ci/archive/20260805/202608050250.Walny9nd-lkp@xxxxxxxxx/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260805/202608050250.Walny9nd-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/202608050250.Walny9nd-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
drivers/spi/spi-pxa2xx.c: In function 'pxa2xx_spi_resume':
>> drivers/spi/spi-pxa2xx.c:1554:28: warning: unused variable 'ssp' [-Wunused-variable]
1554 | struct ssp_device *ssp = drv_data->ssp;
| ^~~
vim +/ssp +1554 drivers/spi/spi-pxa2xx.c
e0c9905e87ac1b drivers/spi/pxa2xx_spi.c Stephen Street 2006-03-07 1550
86d2593afeb94e drivers/spi/pxa2xx_spi.c Mike Rapoport 2009-07-21 1551 static int pxa2xx_spi_resume(struct device *dev)
e0c9905e87ac1b drivers/spi/pxa2xx_spi.c Stephen Street 2006-03-07 1552 {
86d2593afeb94e drivers/spi/pxa2xx_spi.c Mike Rapoport 2009-07-21 1553 struct driver_data *drv_data = dev_get_drvdata(dev);
2f1a74e5a2de04 drivers/spi/pxa2xx_spi.c eric miao 2007-11-21 @1554 struct ssp_device *ssp = drv_data->ssp;
bffc967e93c771 drivers/spi/spi-pxa2xx.c Jarkko Nikula 2016-09-07 1555 int status;
e0c9905e87ac1b drivers/spi/pxa2xx_spi.c Stephen Street 2006-03-07 1556
e0c9905e87ac1b drivers/spi/pxa2xx_spi.c Stephen Street 2006-03-07 1557 /* Enable the SSP clock */
62bbc864d1946c drivers/spi/spi-pxa2xx.c Tobias Jordan 2018-04-30 1558 if (!pm_runtime_suspended(dev)) {
74ff7000fd41ae drivers/spi/spi-pxa2xx.c Shih-Yuan Lee 2026-07-18 1559 status = pxa2xx_spi_clk_enable(drv_data);
62bbc864d1946c drivers/spi/spi-pxa2xx.c Tobias Jordan 2018-04-30 1560 if (status)
62bbc864d1946c drivers/spi/spi-pxa2xx.c Tobias Jordan 2018-04-30 1561 return status;
62bbc864d1946c drivers/spi/spi-pxa2xx.c Tobias Jordan 2018-04-30 1562 }
e0c9905e87ac1b drivers/spi/pxa2xx_spi.c Stephen Street 2006-03-07 1563
74ff7000fd41ae drivers/spi/spi-pxa2xx.c Shih-Yuan Lee 2026-07-18 1564 drv_data->suspended = false;
74ff7000fd41ae drivers/spi/spi-pxa2xx.c Shih-Yuan Lee 2026-07-18 1565
e0c9905e87ac1b drivers/spi/pxa2xx_spi.c Stephen Street 2006-03-07 1566 /* Start the queue running */
51eea52d26d493 drivers/spi/spi-pxa2xx.c Lubomir Rintel 2019-01-16 1567 return spi_controller_resume(drv_data->controller);
e0c9905e87ac1b drivers/spi/pxa2xx_spi.c Stephen Street 2006-03-07 1568 }
7d94a505858841 drivers/spi/spi-pxa2xx.c Mika Westerberg 2013-01-22 1569
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