[dm-devel] [dm:for-next 10/13] drivers/md/dm-writecache.c:2301:10: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'int'

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
head:   ec9fab4b1951f0ae4d0e8492fcd4b402a7b499e2
commit: cf83a95f5e14f95a5cce73d3acea5c06c6a94adb [10/13] dm: add writecache target
config: x86_64-randconfig-x016-201820 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        git checkout cf83a95f5e14f95a5cce73d3acea5c06c6a94adb
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   In file included from drivers/md/dm-writecache.c:7:0:
   drivers/md/dm-writecache.c: In function 'writecache_status':
>> drivers/md/dm-writecache.c:2301:10: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'int' [-Wformat=]
      DMEMIT("%ld %llu %llu %llu", writecache_has_error(wc),
             ^
   include/linux/device-mapper.h:549:46: note: in definition of macro 'DMEMIT'
         0 : scnprintf(result + sz, maxlen - sz, x))
                                                 ^

vim +2301 drivers/md/dm-writecache.c

  2290	
  2291	static void writecache_status(struct dm_target *ti, status_type_t type,
  2292				      unsigned status_flags, char *result, unsigned maxlen)
  2293	{
  2294		struct dm_writecache *wc = ti->private;
  2295		unsigned extra_args;
  2296		unsigned sz = 0;
  2297		uint64_t x;
  2298	
  2299		switch (type) {
  2300		case STATUSTYPE_INFO:
> 2301			DMEMIT("%ld %llu %llu %llu", writecache_has_error(wc),
  2302			       (unsigned long long)wc->n_blocks, (unsigned long long)wc->freelist_size,
  2303			       (unsigned long long)wc->writeback_size);
  2304			break;
  2305		case STATUSTYPE_TABLE:
  2306			DMEMIT("%c %s %s %u ", WC_MODE_PMEM(wc) ? 'p' : 's',
  2307					wc->dev->name, wc->ssd_dev->name, wc->block_size);
  2308			extra_args = 0;
  2309			if (wc->high_wm_percent_set)
  2310				extra_args += 2;
  2311			if (wc->low_wm_percent_set)
  2312				extra_args += 2;
  2313			if (wc->max_writeback_jobs_set)
  2314				extra_args += 2;
  2315			if (wc->autocommit_blocks_set)
  2316				extra_args += 2;
  2317			if (wc->autocommit_time_set)
  2318				extra_args += 2;
  2319	#ifndef DM_WRITECACHE_ONLY_SSD
  2320			if (wc->writeback_fua_set)
  2321				extra_args++;
  2322	#endif
  2323			DMEMIT("%u", extra_args);
  2324			if (wc->high_wm_percent_set) {
  2325				x = (uint64_t)wc->freelist_high_watermark * 100;
  2326				x += wc->n_blocks / 2;
  2327				do_div(x, (size_t)wc->n_blocks);
  2328				DMEMIT(" high_watermark %u", 100 - (unsigned)x);
  2329			}
  2330			if (wc->low_wm_percent_set) {
  2331				x = (uint64_t)wc->freelist_low_watermark * 100;
  2332				x += wc->n_blocks / 2;
  2333				do_div(x, (size_t)wc->n_blocks);
  2334				DMEMIT(" low_watermark %u", 100 - (unsigned)x);
  2335			}
  2336			if (wc->max_writeback_jobs_set) {
  2337				DMEMIT(" writeback_jobs %u", wc->max_writeback_jobs);
  2338			}
  2339			if (wc->autocommit_blocks_set) {
  2340				DMEMIT(" autocommit_blocks %u", wc->autocommit_blocks);
  2341			}
  2342			if (wc->autocommit_time_set) {
  2343				DMEMIT(" autocommit_time %u", jiffies_to_msecs(wc->autocommit_jiffies));
  2344			}
  2345	#ifndef DM_WRITECACHE_ONLY_SSD
  2346			if (wc->writeback_fua_set) {
  2347				DMEMIT(" %sfua", wc->writeback_fua ? "" : "no");
  2348			}
  2349	#endif
  2350			break;
  2351		}
  2352	}
  2353	

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