Re: [PATCH] pinctrl-adi2: Use a signed return type for adi_gpio_irq_startup()

From: kbuild test robot
Date: Sat Dec 19 2015 - 16:55:54 EST


Hi Markus,

[auto build test WARNING on pinctrl/for-next]
[also build test WARNING on v4.4-rc5 next-20151218]

url: https://github.com/0day-ci/linux/commits/SF-Markus-Elfring/pinctrl-adi2-Use-a-signed-return-type-for-adi_gpio_irq_startup/20151220-010253
base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git for-next
config: blackfin-CM-BF548_defconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=blackfin

All warnings (new ones prefixed by >>):

>> drivers/pinctrl/pinctrl-adi2.c:584:2: warning: initialization from incompatible pointer type [enabled by default]
drivers/pinctrl/pinctrl-adi2.c:584:2: warning: (near initialization for 'adi_gpio_irqchip.irq_startup') [enabled by default]

vim +584 drivers/pinctrl/pinctrl-adi2.c

e9a03add Sonic Zhang 2013-09-03 568 request >>= 1;
e9a03add Sonic Zhang 2013-09-03 569 }
e9a03add Sonic Zhang 2013-09-03 570
e9a03add Sonic Zhang 2013-09-03 571 if (!umask)
e9a03add Sonic Zhang 2013-09-03 572 chained_irq_exit(chip, desc);
e9a03add Sonic Zhang 2013-09-03 573 }
e9a03add Sonic Zhang 2013-09-03 574
e9a03add Sonic Zhang 2013-09-03 575 static struct irq_chip adi_gpio_irqchip = {
e9a03add Sonic Zhang 2013-09-03 576 .name = "GPIO",
e9a03add Sonic Zhang 2013-09-03 577 .irq_ack = adi_gpio_ack_irq,
e9a03add Sonic Zhang 2013-09-03 578 .irq_mask = adi_gpio_mask_irq,
e9a03add Sonic Zhang 2013-09-03 579 .irq_mask_ack = adi_gpio_mask_ack_irq,
e9a03add Sonic Zhang 2013-09-03 580 .irq_unmask = adi_gpio_unmask_irq,
e9a03add Sonic Zhang 2013-09-03 581 .irq_disable = adi_gpio_mask_irq,
e9a03add Sonic Zhang 2013-09-03 582 .irq_enable = adi_gpio_unmask_irq,
e9a03add Sonic Zhang 2013-09-03 583 .irq_set_type = adi_gpio_irq_type,
e9a03add Sonic Zhang 2013-09-03 @584 .irq_startup = adi_gpio_irq_startup,
e9a03add Sonic Zhang 2013-09-03 585 .irq_shutdown = adi_gpio_irq_shutdown,
e9a03add Sonic Zhang 2013-09-03 586 .irq_set_wake = adi_gpio_set_wake,
e9a03add Sonic Zhang 2013-09-03 587 };
e9a03add Sonic Zhang 2013-09-03 588
e9a03add Sonic Zhang 2013-09-03 589 static int adi_get_groups_count(struct pinctrl_dev *pctldev)
e9a03add Sonic Zhang 2013-09-03 590 {
e9a03add Sonic Zhang 2013-09-03 591 struct adi_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev);
e9a03add Sonic Zhang 2013-09-03 592

:::::: The code at line 584 was first introduced by commit
:::::: e9a03add0c6ed5341fc59ff9c76843c2888a33fa pinctrl: ADI PIN control driver for the GPIO controller on bf54x and bf60x.

:::::: TO: Sonic Zhang <sonic.zhang@xxxxxxxxxx>
:::::: CC: Linus Walleij <linus.walleij@xxxxxxxxxx>

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