Hi Elaine, [auto build test WARNING on ljones-mfd/for-mfd-next] [also build test WARNING on v4.11-rc2 next-20170310] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Elaine-Zhang/rk808-Add-RK805-support/20170320-073457 base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git for-mfd-next config: i386-randconfig-x073-201712 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): drivers/mfd/rk808.c: In function 'rk808_probe': >> drivers/mfd/rk808.c:547:16: warning: 'pm_pwroff_fn' may be used uninitialized in this function [-Wmaybe-uninitialized] pm_power_off = pm_pwroff_fn; ~~~~~~~~~~~~~^~~~~~~~~~~~~~ vim +/pm_pwroff_fn +547 drivers/mfd/rk808.c 2eedcbfc0 Wadim Egorov 2016-08-29 531 return ret; 2eedcbfc0 Wadim Egorov 2016-08-29 532 } 2eedcbfc0 Wadim Egorov 2016-08-29 533 } f69a7cf74 Chris Zhong 2014-09-03 534 2eedcbfc0 Wadim Egorov 2016-08-29 535 ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE, 2eedcbfc0 Wadim Egorov 2016-08-29 536 cells, nr_cells, NULL, 0, d5623161a Laxman Dewangan 2016-04-08 537 regmap_irq_get_domain(rk808->irq_data)); f69a7cf74 Chris Zhong 2014-09-03 538 if (ret) { f69a7cf74 Chris Zhong 2014-09-03 539 dev_err(&client->dev, "failed to add MFD devices %d\n", ret); f69a7cf74 Chris Zhong 2014-09-03 540 goto err_irq; f69a7cf74 Chris Zhong 2014-09-03 541 } f69a7cf74 Chris Zhong 2014-09-03 542 f69a7cf74 Chris Zhong 2014-09-03 543 pm_off = of_property_read_bool(np, f69a7cf74 Chris Zhong 2014-09-03 544 "rockchip,system-power-controller"); f69a7cf74 Chris Zhong 2014-09-03 545 if (pm_off && !pm_power_off) { f69a7cf74 Chris Zhong 2014-09-03 546 rk808_i2c_client = client; b2e2c8509 Jianhong Chen 2016-10-17 @547 pm_power_off = pm_pwroff_fn; f69a7cf74 Chris Zhong 2014-09-03 548 } f69a7cf74 Chris Zhong 2014-09-03 549 f69a7cf74 Chris Zhong 2014-09-03 550 return 0; f69a7cf74 Chris Zhong 2014-09-03 551 f69a7cf74 Chris Zhong 2014-09-03 552 err_irq: f69a7cf74 Chris Zhong 2014-09-03 553 regmap_del_irq_chip(client->irq, rk808->irq_data); f69a7cf74 Chris Zhong 2014-09-03 554 return ret; f69a7cf74 Chris Zhong 2014-09-03 555 } :::::: The code at line 547 was first introduced by commit :::::: b2e2c85091710159b305735d557f4ef4695f5dff mfd: rk808: RK818 uses DEV_OFF to power off supplies :::::: TO: Jianhong Chen <chenjh@xxxxxxxxxxxxxx> :::::: CC: Lee Jones <lee.jones@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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