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* [hch-block:block-fs.h-cleanup 10/10] block/partitions/ibm.c:307:5: error: assignment to 'int gendisk dasd_information2_t {aka 'int gendisk struct dasd_information2_t from incompatible pointer type 'int gendisk dasd_information2_t {aka 'i...
@ 2020-06-15 15:37 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2020-06-15 15:37 UTC (permalink / raw)
  To: kbuild-all

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tree:   git://git.infradead.org/users/hch/block.git block-fs.h-cleanup
head:   1261c655dd25c5a21aafc9912a2b09a4956cf818
commit: 1261c655dd25c5a21aafc9912a2b09a4956cf818 [10/10] block: move struct block_device to blk_types.h
config: s390-allyesconfig (attached as .config)
compiler: s390-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 1261c655dd25c5a21aafc9912a2b09a4956cf818
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

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

In file included from drivers/s390/block/dasd_ioctl.c:25:
>> include/linux/dasd_mod.h:7:36: warning: 'struct gendisk' declared inside parameter list will not be visible outside of this definition or declaration
7 | extern int dasd_biodasdinfo(struct gendisk *disk, dasd_information2_t *info);
|                                    ^~~~~~~
drivers/s390/block/dasd_ioctl.c:684:5: error: conflicting types for 'dasd_biodasdinfo'
684 | int dasd_biodasdinfo(struct gendisk *disk, struct dasd_information2_t *info)
|     ^~~~~~~~~~~~~~~~
In file included from drivers/s390/block/dasd_ioctl.c:25:
include/linux/dasd_mod.h:7:12: note: previous declaration of 'dasd_biodasdinfo' was here
7 | extern int dasd_biodasdinfo(struct gendisk *disk, dasd_information2_t *info);
|            ^~~~~~~~~~~~~~~~
In file included from include/linux/linkage.h:7,
from include/linux/kernel.h:8,
from include/linux/interrupt.h:6,
from drivers/s390/block/dasd_ioctl.c:15:
drivers/s390/block/dasd_ioctl.c:700:19: error: conflicting types for 'dasd_biodasdinfo'
700 | EXPORT_SYMBOL_GPL(dasd_biodasdinfo);
|                   ^~~~~~~~~~~~~~~~
include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
98 |  extern typeof(sym) sym;                |                     ^~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
|                                  ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym)  _EXPORT_SYMBOL(sym, "_gpl")
|                                 ^~~~~~~~~~~~~~
>> drivers/s390/block/dasd_ioctl.c:700:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
700 | EXPORT_SYMBOL_GPL(dasd_biodasdinfo);
| ^~~~~~~~~~~~~~~~~
In file included from drivers/s390/block/dasd_ioctl.c:25:
include/linux/dasd_mod.h:7:12: note: previous declaration of 'dasd_biodasdinfo' was here
7 | extern int dasd_biodasdinfo(struct gendisk *disk, dasd_information2_t *info);
|            ^~~~~~~~~~~~~~~~
--
In file included from block/partitions/ibm.c:17:
>> include/linux/dasd_mod.h:7:36: warning: 'struct gendisk' declared inside parameter list will not be visible outside of this definition or declaration
7 | extern int dasd_biodasdinfo(struct gendisk *disk, dasd_information2_t *info);
|                                    ^~~~~~~
block/partitions/ibm.c: In function 'ibm_partition':
>> block/partitions/ibm.c:307:5: error: assignment to 'int (*)(struct gendisk *, dasd_information2_t *)' {aka 'int (*)(struct gendisk *, struct dasd_information2_t *)'} from incompatible pointer type 'int (*)(struct gendisk *, dasd_information2_t *)' {aka 'int (*)(struct gendisk *, struct dasd_information2_t *)'} [-Werror=incompatible-pointer-types]
307 |  fn = symbol_get(dasd_biodasdinfo);
|     ^
cc1: some warnings being treated as errors

vim +307 block/partitions/ibm.c

46e8894786327c Stefan Weinhuber 2012-08-31  285  
46e8894786327c Stefan Weinhuber 2012-08-31  286  
46e8894786327c Stefan Weinhuber 2012-08-31  287  /*
46e8894786327c Stefan Weinhuber 2012-08-31  288   * This is the main function, called by check.c
46e8894786327c Stefan Weinhuber 2012-08-31  289   */
46e8894786327c Stefan Weinhuber 2012-08-31  290  int ibm_partition(struct parsed_partitions *state)
46e8894786327c Stefan Weinhuber 2012-08-31  291  {
26d7e28e38206b Stefan Haberland 2020-05-19  292  	int (*fn)(struct gendisk *disk, dasd_information2_t *info);
46e8894786327c Stefan Weinhuber 2012-08-31  293  	struct block_device *bdev = state->bdev;
26d7e28e38206b Stefan Haberland 2020-05-19  294  	struct gendisk *disk = bdev->bd_disk;
46e8894786327c Stefan Weinhuber 2012-08-31  295  	int blocksize, res;
46e8894786327c Stefan Weinhuber 2012-08-31  296  	loff_t i_size, offset, size;
46e8894786327c Stefan Weinhuber 2012-08-31  297  	dasd_information2_t *info;
46e8894786327c Stefan Weinhuber 2012-08-31  298  	struct hd_geometry *geo;
46e8894786327c Stefan Weinhuber 2012-08-31  299  	char type[5] = {0,};
46e8894786327c Stefan Weinhuber 2012-08-31  300  	char name[7] = {0,};
46e8894786327c Stefan Weinhuber 2012-08-31  301  	sector_t labelsect;
46e8894786327c Stefan Weinhuber 2012-08-31  302  	union label_t *label;
46e8894786327c Stefan Weinhuber 2012-08-31  303  
46e8894786327c Stefan Weinhuber 2012-08-31  304  	res = 0;
26d7e28e38206b Stefan Haberland 2020-05-19  305  	if (!disk->fops->getgeo)
26d7e28e38206b Stefan Haberland 2020-05-19  306  		goto out_exit;
26d7e28e38206b Stefan Haberland 2020-05-19 @307  	fn = symbol_get(dasd_biodasdinfo);

:::::: The code at line 307 was first introduced by commit
:::::: 26d7e28e38206b1b3207af1409eee2269ab36f82 s390/dasd: remove ioctl_by_bdev calls

:::::: TO: Stefan Haberland <sth@linux.ibm.com>
:::::: CC: Jens Axboe <axboe@kernel.dk>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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2020-06-15 15:37 [hch-block:block-fs.h-cleanup 10/10] block/partitions/ibm.c:307:5: error: assignment to 'int gendisk dasd_information2_t {aka 'int gendisk struct dasd_information2_t from incompatible pointer type 'int gendisk dasd_information2_t {aka 'i kernel test robot

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