linux-kernel - drivers/staging/media/atomisp/pci/hmm/hmm.c:269:6: warning: format '%ld' expects argument of type 'long int', but argument 6 has type 'size

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Date:   Thu, 30 Jul 2020 05:26:34 +0800
From:   kernel test robot <lkp@...el.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Subject: drivers/staging/media/atomisp/pci/hmm/hmm.c:269:6: warning: format
 '%ld' expects argument of type 'long int', but argument 6 has type 'size_t'
 {aka 'unsigned int'}

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6ba1b005ffc388c2aeaddae20da29e4810dea298
commit: 03884c93560c48c2739caa9b104b0cb4d3ea8c91 media: atomisp: add debug for hmm alloc
date:   7 weeks ago
config: i386-randconfig-r016-20200729 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce (this is a W=1 build):
        git checkout 03884c93560c48c2739caa9b104b0cb4d3ea8c91
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

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

All warnings (new ones prefixed by >>):

   cc1: warning: drivers/staging/media/atomisp//pci/hive_isp_css_include/memory_access/: No such file or directory [-Wmissing-include-dirs]
   In file included from include/linux/device.h:15,
                    from include/linux/acpi.h:15,
                    from include/linux/i2c.h:13,
                    from drivers/staging/media/atomisp//include/hmm/../../include/linux/atomisp_platform.h:20,
                    from drivers/staging/media/atomisp//pci/atomisp_internal.h:22,
                    from drivers/staging/media/atomisp/pci/hmm/hmm.c:33:
   drivers/staging/media/atomisp/pci/hmm/hmm.c: In function 'hmm_alloc':
>> drivers/staging/media/atomisp/pci/hmm/hmm.c:269:6: warning: format '%ld' expects argument of type 'long int', but argument 6 has type 'size_t' {aka 'unsigned int'} [-Wformat=]
     269 |      "%s: pages: 0x%08x (%ld bytes), type: %d from highmem %d, user ptr %p, cached %d\n",
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt'
      19 | #define dev_fmt(fmt) fmt
         |                      ^~~
   drivers/staging/media/atomisp/pci/hmm/hmm.c:268:6: note: in expansion of macro 'dev_dbg'
     268 |      dev_dbg(atomisp_dev,
         |      ^~~~~~~
   drivers/staging/media/atomisp/pci/hmm/hmm.c:269:28: note: format string is defined here
     269 |      "%s: pages: 0x%08x (%ld bytes), type: %d from highmem %d, user ptr %p, cached %d\n",
         |                          ~~^
         |                            |
         |                            long int
         |                          %d

vim +269 drivers/staging/media/atomisp/pci/hmm/hmm.c

   220	
   221	ia_css_ptr hmm_alloc(size_t bytes, enum hmm_bo_type type,
   222			     int from_highmem, const void __user *userptr,
   223			     const uint16_t attrs)
   224	{
   225		unsigned int pgnr;
   226		struct hmm_buffer_object *bo;
   227		bool cached = attrs & ATOMISP_MAP_FLAG_CACHED;
   228		int ret;
   229	
   230		WARN_ON(attrs & ATOMISP_MAP_FLAG_CONTIGUOUS);
   231	
   232		/*
   233		 * Check if we are initialized. In the ideal world we wouldn't need
   234		 * this but we can tackle it once the driver is a lot cleaner
   235		 */
   236	
   237		if (!hmm_initialized)
   238			hmm_init();
   239		/* Get page number from size */
   240		pgnr = size_to_pgnr_ceil(bytes);
   241	
   242		/* Buffer object structure init */
   243		bo = hmm_bo_alloc(&bo_device, pgnr);
   244		if (!bo) {
   245			dev_err(atomisp_dev, "hmm_bo_create failed.\n");
   246			goto create_bo_err;
   247		}
   248	
   249		/* Allocate pages for memory */
   250		ret = hmm_bo_alloc_pages(bo, type, from_highmem, userptr, cached);
   251		if (ret) {
   252			dev_err(atomisp_dev, "hmm_bo_alloc_pages failed.\n");
   253			goto alloc_page_err;
   254		}
   255	
   256		/* Combine the virtual address and pages together */
   257		ret = hmm_bo_bind(bo);
   258		if (ret) {
   259			dev_err(atomisp_dev, "hmm_bo_bind failed.\n");
   260			goto bind_err;
   261		}
   262	
   263		hmm_mem_stat.tol_cnt += pgnr;
   264	
   265		if (attrs & ATOMISP_MAP_FLAG_CLEARED)
   266			hmm_set(bo->start, 0, bytes);
   267	
   268		    dev_dbg(atomisp_dev,
 > 269		    "%s: pages: 0x%08x (%ld bytes), type: %d from highmem %d, user ptr %p, cached %d\n",
   270		    __func__, bo->start, bytes, type, from_highmem, userptr, cached);
   271	
   272		return bo->start;
   273	
   274	bind_err:
   275		hmm_bo_free_pages(bo);
   276	alloc_page_err:
   277		hmm_bo_unref(bo);
   278	create_bo_err:
   279		return 0;
   280	}
   281	

---
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https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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