Hi Dmitry,

[auto build test WARNING on input/next]
[also build test WARNING on v4.5-rc5 next-20160226]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improving the system]

url:    
https://github.com/0day-ci/linux/commits/Dmitry-Torokhov/Input-gpio_keys_polled-keep-button-data-constant/20160227-025342
base:   https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next
config: i386-allmodconfig (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   drivers/input/keyboard/gpio_keys.c: In function 
'gpio_keys_get_devtree_pdata':
>> drivers/input/keyboard/gpio_keys.c:654:10: warning: assignment discards 
>> 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
      button = &pdata->buttons[i++];
             ^

vim +/const +654 drivers/input/keyboard/gpio_keys.c

5d422f2e7 Andy Shevchenko            2014-04-25  638                         
sizeof(*pdata) + nbuttons * sizeof(*button),
219edc717 Alexandre Pereira da Silva 2012-07-29  639                         
GFP_KERNEL);
5d422f2e7 Andy Shevchenko            2014-04-25  640    if (!pdata)
5d422f2e7 Andy Shevchenko            2014-04-25  641            return 
ERR_PTR(-ENOMEM);
fd05d0892 David Jander               2011-07-09  642  
219edc717 Alexandre Pereira da Silva 2012-07-29  643    pdata->buttons = 
(struct gpio_keys_button *)(pdata + 1);
219edc717 Alexandre Pereira da Silva 2012-07-29  644    pdata->nbuttons = 
nbuttons;
fd05d0892 David Jander               2011-07-09  645  
219edc717 Alexandre Pereira da Silva 2012-07-29  646    pdata->rep = 
!!of_get_property(node, "autorepeat", NULL);
fd05d0892 David Jander               2011-07-09  647  
c4dc5f8c9 Laxman Dewangan            2016-01-12  648    
of_property_read_string(node, "label", &pdata->name);
c4dc5f8c9 Laxman Dewangan            2016-01-12  649  
fd05d0892 David Jander               2011-07-09  650    i = 0;
809d9516d Laxman Dewangan            2016-01-13  651    
for_each_available_child_of_node(node, pp) {
fd05d0892 David Jander               2011-07-09  652            enum 
of_gpio_flags flags;
fd05d0892 David Jander               2011-07-09  653  
1d6a01365 Fabio Estevam              2014-12-13 @654            button = 
&pdata->buttons[i++];
1d6a01365 Fabio Estevam              2014-12-13  655  
97d86e07b Dmitry Torokhov            2014-11-14  656            button->gpio = 
of_get_gpio_flags(pp, 0, &flags);
97d86e07b Dmitry Torokhov            2014-11-14  657            if 
(button->gpio < 0) {
97d86e07b Dmitry Torokhov            2014-11-14  658                    error = 
button->gpio;
97d86e07b Dmitry Torokhov            2014-11-14  659                    if 
(error != -ENOENT) {
e324ce61e Dmitry Torokhov            2012-12-24  660                            
if (error != -EPROBE_DEFER)
e324ce61e Dmitry Torokhov            2012-12-24  661                            
        dev_err(dev,
e324ce61e Dmitry Torokhov            2012-12-24  662                            
                "Failed to get gpio flags, error: %d\n",

:::::: The code at line 654 was first introduced by commit
:::::: 1d6a01365fd63fbf7c2709a183e2936728c8efad Input: gpio_keys - fix warning 
regarding uninitialized 'button' variable

:::::: TO: Fabio Estevam <[email protected]>
:::::: CC: Dmitry Torokhov <[email protected]>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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