Hi Dan, [auto build test ERROR on linus/master] [also build test ERROR on v4.11-rc7 next-20170419] [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/dcssblk-add-dax_operations-support/20170420-090408 config: s390-defconfig (attached as .config) compiler: s390x-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/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 error/warnings (new ones prefixed by >>): >> drivers/s390/block/dcssblk.c:36:46: warning: 'struct dax_device' declared inside parameter list will not be visible outside of this definition or declaration static long dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, ^~~~~~~~~~ >> drivers/s390/block/dcssblk.c:49:21: error: variable 'dcssblk_dax_ops' has initializer but incomplete type static const struct dax_operations dcssblk_dax_ops = { ^~~~~~~~~~~~~~ >> drivers/s390/block/dcssblk.c:50:2: error: unknown field 'direct_access' specified in initializer .direct_access = dcssblk_dax_direct_access, ^ >> drivers/s390/block/dcssblk.c:50:19: warning: excess elements in struct initializer .direct_access = dcssblk_dax_direct_access, ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/s390/block/dcssblk.c:50:19: note: (near initialization for 'dcssblk_dax_ops') drivers/s390/block/dcssblk.c: In function 'dcssblk_shared_store': >> drivers/s390/block/dcssblk.c:400:2: error: implicit declaration of function 'kill_dax' [-Werror=implicit-function-declaration] kill_dax(dev_info->dax_dev); ^~~~~~~~ >> drivers/s390/block/dcssblk.c:401:2: error: implicit declaration of function 'put_dax' [-Werror=implicit-function-declaration] put_dax(dev_info->dax_dev); ^~~~~~~ drivers/s390/block/dcssblk.c: In function 'dcssblk_add_store': >> drivers/s390/block/dcssblk.c:667:22: error: implicit declaration of function 'alloc_dax' [-Werror=implicit-function-declaration] dev_info->dax_dev = alloc_dax(dev_info, dev_info->gd->disk_name, ^~~~~~~~~ >> drivers/s390/block/dcssblk.c:667:20: warning: assignment makes pointer from integer without a cast [-Wint-conversion] dev_info->dax_dev = alloc_dax(dev_info, dev_info->gd->disk_name, ^ drivers/s390/block/dcssblk.c: At top level: drivers/s390/block/dcssblk.c:932:1: error: conflicting types for 'dcssblk_dax_direct_access' dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/s390/block/dcssblk.c:36:13: note: previous declaration of 'dcssblk_dax_direct_access' was here static long dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/s390/block/dcssblk.c: In function 'dcssblk_dax_direct_access': >> drivers/s390/block/dcssblk.c:935:38: error: implicit declaration of function 'dax_get_private' [-Werror=implicit-function-declaration] struct dcssblk_dev_info *dev_info = dax_get_private(dax_dev); ^~~~~~~~~~~~~~~ >> drivers/s390/block/dcssblk.c:935:38: warning: initialization makes pointer from integer without a cast [-Wint-conversion] drivers/s390/block/dcssblk.c: At top level: >> drivers/s390/block/dcssblk.c:49:36: error: storage size of 'dcssblk_dax_ops' isn't known static const struct dax_operations dcssblk_dax_ops = { ^~~~~~~~~~~~~~~ drivers/s390/block/dcssblk.c:36:13: warning: 'dcssblk_dax_direct_access' used but never defined static long dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/s390/block/dcssblk.c:932:1: warning: 'dcssblk_dax_direct_access' defined but not used [-Wunused-function] dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, ^~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/dcssblk_dax_ops +49 drivers/s390/block/dcssblk.c 30 static int dcssblk_open(struct block_device *bdev, fmode_t mode); 31 static void dcssblk_release(struct gendisk *disk, fmode_t mode); 32 static blk_qc_t dcssblk_make_request(struct request_queue *q, 33 struct bio *bio); 34 static long dcssblk_blk_direct_access(struct block_device *bdev, sector_t secnum, 35 void **kaddr, pfn_t *pfn, long size); > 36 static long dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, 37 long nr_pages, void **kaddr, pfn_t *pfn); 38 39 static char dcssblk_segments[DCSSBLK_PARM_LEN] = "\0"; 40 41 static int dcssblk_major; 42 static const struct block_device_operations dcssblk_devops = { 43 .owner = THIS_MODULE, 44 .open = dcssblk_open, 45 .release = dcssblk_release, 46 .direct_access = dcssblk_blk_direct_access, 47 }; 48 > 49 static const struct dax_operations dcssblk_dax_ops = { > 50 .direct_access = dcssblk_dax_direct_access, 51 }; 52 53 struct dcssblk_dev_info { --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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