Re: [PATCH v4 3/4] gpio: siul2-s32g2: add NXP S32G2/S32G3 SoCs support

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Hi Andrei,

kernel test robot noticed the following build errors:

[auto build test ERROR on brgl/gpio/for-next]
[also build test ERROR on driver-core/driver-core-testing driver-core/driver-core-next driver-core/driver-core-linus robh/for-next linus/master v6.11 next-20240926]
[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/Andrei-Stefanescu/drivers-provide-devm_platform_get_and_ioremap_resource_byname/20240926-223448
base:   https://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git gpio/for-next
patch link:    https://lore.kernel.org/r/20240926143122.1385658-4-andrei.stefanescu%40oss.nxp.com
patch subject: [PATCH v4 3/4] gpio: siul2-s32g2: add NXP S32G2/S32G3 SoCs support
config: openrisc-allyesconfig (https://download.01.org/0day-ci/archive/20240927/202409271406.SOjGw98h-lkp@xxxxxxxxx/config)
compiler: or1k-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240927/202409271406.SOjGw98h-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/202409271406.SOjGw98h-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from ./arch/openrisc/include/generated/asm/div64.h:1,
                    from include/linux/math.h:6,
                    from include/linux/kernel.h:27,
                    from include/linux/cpumask.h:11,
                    from include/linux/smp.h:13,
                    from include/linux/lockdep.h:14,
                    from include/linux/spinlock.h:63,
                    from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from arch/openrisc/include/asm/pgalloc.h:20,
                    from arch/openrisc/include/asm/io.h:18,
                    from include/linux/io.h:14,
                    from drivers/gpio/gpio-siul2-s32g2.c:11:
   drivers/gpio/gpio-siul2-s32g2.c: In function 'common_regmap_init':
   include/asm-generic/div64.h:222:35: warning: comparison of distinct pointer types lacks a cast [-Wcompare-distinct-pointer-types]
     222 |         (void)(((typeof((n)) *)0) == ((uint64_t *)0));  \
         |                                   ^~
   drivers/gpio/gpio-siul2-s32g2.c:296:46: note: in expansion of macro 'do_div'
     296 |                 conf->num_reg_defaults_raw = do_div(size, conf->reg_stride);
         |                                              ^~~~~~
   In file included from include/linux/err.h:5,
                    from drivers/gpio/gpio-siul2-s32g2.c:9:
   include/asm-generic/div64.h:234:32: warning: right shift count >= width of type [-Wshift-count-overflow]
     234 |         } else if (likely(((n) >> 32) == 0)) {          \
         |                                ^~
   include/linux/compiler.h:76:45: note: in definition of macro 'likely'
      76 | # define likely(x)      __builtin_expect(!!(x), 1)
         |                                             ^
   drivers/gpio/gpio-siul2-s32g2.c:296:46: note: in expansion of macro 'do_div'
     296 |                 conf->num_reg_defaults_raw = do_div(size, conf->reg_stride);
         |                                              ^~~~~~
>> include/asm-generic/div64.h:238:36: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Wincompatible-pointer-types]
     238 |                 __rem = __div64_32(&(n), __base);       \
         |                                    ^~~~
         |                                    |
         |                                    resource_size_t * {aka unsigned int *}
   drivers/gpio/gpio-siul2-s32g2.c:296:46: note: in expansion of macro 'do_div'
     296 |                 conf->num_reg_defaults_raw = do_div(size, conf->reg_stride);
         |                                              ^~~~~~
   include/asm-generic/div64.h:213:38: note: expected 'uint64_t *' {aka 'long long unsigned int *'} but argument is of type 'resource_size_t *' {aka 'unsigned int *'}
     213 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
         |                            ~~~~~~~~~~^~~~~~~~


vim +/__div64_32 +238 include/asm-generic/div64.h

^1da177e4c3f41 Linus Torvalds     2005-04-16  215  
^1da177e4c3f41 Linus Torvalds     2005-04-16  216  /* The unnecessary pointer compare is there
^1da177e4c3f41 Linus Torvalds     2005-04-16  217   * to check for type safety (n must be 64bit)
^1da177e4c3f41 Linus Torvalds     2005-04-16  218   */
^1da177e4c3f41 Linus Torvalds     2005-04-16  219  # define do_div(n,base) ({				\
^1da177e4c3f41 Linus Torvalds     2005-04-16  220  	uint32_t __base = (base);			\
^1da177e4c3f41 Linus Torvalds     2005-04-16  221  	uint32_t __rem;					\
^1da177e4c3f41 Linus Torvalds     2005-04-16  222  	(void)(((typeof((n)) *)0) == ((uint64_t *)0));	\
911918aa7ef6f8 Nicolas Pitre      2015-11-02  223  	if (__builtin_constant_p(__base) &&		\
911918aa7ef6f8 Nicolas Pitre      2015-11-02  224  	    is_power_of_2(__base)) {			\
911918aa7ef6f8 Nicolas Pitre      2015-11-02  225  		__rem = (n) & (__base - 1);		\
911918aa7ef6f8 Nicolas Pitre      2015-11-02  226  		(n) >>= ilog2(__base);			\
c747ce4706190e Geert Uytterhoeven 2021-08-11  227  	} else if (__builtin_constant_p(__base) &&	\
461a5e51060c93 Nicolas Pitre      2015-10-30  228  		   __base != 0) {			\
461a5e51060c93 Nicolas Pitre      2015-10-30  229  		uint32_t __res_lo, __n_lo = (n);	\
461a5e51060c93 Nicolas Pitre      2015-10-30  230  		(n) = __div64_const32(n, __base);	\
461a5e51060c93 Nicolas Pitre      2015-10-30  231  		/* the remainder can be computed with 32-bit regs */ \
461a5e51060c93 Nicolas Pitre      2015-10-30  232  		__res_lo = (n);				\
461a5e51060c93 Nicolas Pitre      2015-10-30  233  		__rem = __n_lo - __res_lo * __base;	\
911918aa7ef6f8 Nicolas Pitre      2015-11-02  234  	} else if (likely(((n) >> 32) == 0)) {		\
^1da177e4c3f41 Linus Torvalds     2005-04-16  235  		__rem = (uint32_t)(n) % __base;		\
^1da177e4c3f41 Linus Torvalds     2005-04-16  236  		(n) = (uint32_t)(n) / __base;		\
c747ce4706190e Geert Uytterhoeven 2021-08-11  237  	} else {					\
^1da177e4c3f41 Linus Torvalds     2005-04-16 @238  		__rem = __div64_32(&(n), __base);	\
c747ce4706190e Geert Uytterhoeven 2021-08-11  239  	}						\
^1da177e4c3f41 Linus Torvalds     2005-04-16  240  	__rem;						\
^1da177e4c3f41 Linus Torvalds     2005-04-16  241   })
^1da177e4c3f41 Linus Torvalds     2005-04-16  242  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki




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