Re: [PATCH 13/13] pmem: kill __pmem address space

From: kbuild test robot
Date: Sat Jun 04 2016 - 18:33:01 EST


Hi,

[auto build test WARNING on v4.7-rc1]
[also build test WARNING on next-20160603]
[cannot apply to linux-nvdimm/libnvdimm-for-next tip/x86/core]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Dan-Williams/deprecate-pcommit/20160605-045935
config: s390-default_defconfig (attached as .config)
compiler: s390x-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205
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=s390

All warnings (new ones prefixed by >>):

drivers/s390/block/dcssblk.c: In function 'dcssblk_direct_access':
>> drivers/s390/block/dcssblk.c:897:9: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
*kaddr = dev_info->start + offset;
^

vim +897 drivers/s390/block/dcssblk.c

881 bio_io_error(bio);
882 return BLK_QC_T_NONE;
883 }
884
885 static long
886 dcssblk_direct_access (struct block_device *bdev, sector_t secnum,
887 void **kaddr, pfn_t *pfn, long size)
888 {
889 struct dcssblk_dev_info *dev_info;
890 unsigned long offset, dev_sz;
891
892 dev_info = bdev->bd_disk->private_data;
893 if (!dev_info)
894 return -ENODEV;
895 dev_sz = dev_info->end - dev_info->start;
896 offset = secnum * 512;
> 897 *kaddr = dev_info->start + offset;
898 *pfn = __pfn_to_pfn_t(PFN_DOWN(dev_info->start + offset), PFN_DEV);
899
900 return dev_sz - offset;
901 }
902
903 static void
904 dcssblk_check_params(void)
905 {

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

Attachment: .config.gz
Description: Binary data