linux-kernel - [tip:irq/core 8/8] drivers/gpio/gpio-dwapb.c:309:25: error: passing argument 4 of '__irq_alloc_domain_generic

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Date:   Sat, 3 Sep 2016 09:53:01 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Sebastian Frias <sf84@...oste.net>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        tipbuild@...or.com, Thomas Gleixner <tglx@...utronix.de>
Subject: [tip:irq/core 8/8] drivers/gpio/gpio-dwapb.c:309:25: error: passing
 argument 4 of '__irq_alloc_domain_generic_chips' from incompatible pointer
 type

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
head:   895d3b95ed05f72a94f69ab52cb313915a6b889f
commit: 895d3b95ed05f72a94f69ab52cb313915a6b889f [8/8] genirq/generic_chip: Verify irqs_per_chip <= 32
config: i386-randconfig-s0-201635 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        git checkout 895d3b95ed05f72a94f69ab52cb313915a6b889f
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   In file included from include/linux/gpio/driver.h:7:0,
                    from drivers/gpio/gpio-dwapb.c:11:
   drivers/gpio/gpio-dwapb.c: In function 'dwapb_configure_irqs':
>> drivers/gpio/gpio-dwapb.c:309:25: error: passing argument 4 of '__irq_alloc_domain_generic_chips' from incompatible pointer type [-Werror=incompatible-pointer-types]
              "gpio-dwapb", handle_level_irq,
                            ^
   include/linux/irq.h:931:7: note: in definition of macro 'irq_alloc_domain_generic_chips'
          handler, clr, set, flags); \
          ^~~~~~~
   include/linux/irq.h:920:5: note: expected 'const char *' but argument is of type 'void (*)(struct irq_desc *)'
    int __irq_alloc_domain_generic_chips(struct irq_domain *d, int irqs_per_chip,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/gpio/gpio-dwapb.c:310:11: warning: passing argument 5 of '__irq_alloc_domain_generic_chips' makes pointer from integer without a cast [-Wint-conversion]
              IRQ_NOREQUEST, 0,
              ^
   include/linux/irq.h:931:16: note: in definition of macro 'irq_alloc_domain_generic_chips'
          handler, clr, set, flags); \
                   ^~~
   include/linux/irq.h:920:5: note: expected 'irq_flow_handler_t {aka void (*)(struct irq_desc *)}' but argument is of type 'int'
    int __irq_alloc_domain_generic_chips(struct irq_domain *d, int irqs_per_chip,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/irq.h:930:2: error: too few arguments to function '__irq_alloc_domain_generic_chips'
     __irq_alloc_domain_generic_chips(d, irqs_per_chip, num_ct, \
     ^
>> drivers/gpio/gpio-dwapb.c:308:8: note: in expansion of macro 'irq_alloc_domain_generic_chips'
     err = irq_alloc_domain_generic_chips(gpio->domain, ngpio, 2,
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/irq.h:920:5: note: declared here
    int __irq_alloc_domain_generic_chips(struct irq_domain *d, int irqs_per_chip,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/__irq_alloc_domain_generic_chips +309 drivers/gpio/gpio-dwapb.c

7779b345 Jamie Iles                2014-02-25  302  
4ba8cfa7 Jiang Qiu                 2016-04-28  303  	gpio->domain = irq_domain_create_linear(fwnode, ngpio,
7779b345 Jamie Iles                2014-02-25  304  						 &irq_generic_chip_ops, gpio);
7779b345 Jamie Iles                2014-02-25  305  	if (!gpio->domain)
7779b345 Jamie Iles                2014-02-25  306  		return;
7779b345 Jamie Iles                2014-02-25  307  
6a2f4b7d Sebastian Andrzej Siewior 2014-05-26 @308  	err = irq_alloc_domain_generic_chips(gpio->domain, ngpio, 2,
7779b345 Jamie Iles                2014-02-25 @309  					     "gpio-dwapb", handle_level_irq,
7779b345 Jamie Iles                2014-02-25 @310  					     IRQ_NOREQUEST, 0,
7779b345 Jamie Iles                2014-02-25  311  					     IRQ_GC_INIT_NESTED_LOCK);
7779b345 Jamie Iles                2014-02-25  312  	if (err) {
7779b345 Jamie Iles                2014-02-25  313  		dev_info(gpio->dev, "irq_alloc_domain_generic_chips failed\n");

:::::: The code at line 309 was first introduced by commit
:::::: 7779b34556978f6771a78bd87557523623e0405b gpio: add a driver for the Synopsys DesignWare APB GPIO block

:::::: TO: Jamie Iles <jamie@...ieiles.com>
:::::: CC: Linus Walleij <linus.walleij@...aro.org>

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