Re: [PATCH v3 2/3] [media] allegro: add Allegro DVT video IP core driver

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Hi Michael,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linuxtv-media/master]
[also build test WARNING on v5.0-rc4 next-20190222]
[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/Michael-Tretter/Add-ZynqMP-VCU-Allegro-DVT-H-264-encoder-driver/20190214-090312
base:   git://linuxtv.org/media_tree.git master
config: nds32-allmodconfig (attached as .config)
compiler: nds32le-linux-gcc (GCC) 6.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=6.4.0 make.cross ARCH=nds32 

All warnings (new ones prefixed by >>):

   In file included from include/media/v4l2-subdev.h:24:0,
                    from include/media/v4l2-device.h:25,
                    from drivers/staging/media/allegro-dvt/allegro-core.c:22:
   drivers/staging/media/allegro-dvt/allegro-core.c: In function 'allegro_mbox_write':
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
>> drivers/staging/media/allegro-dvt/allegro-core.c:749:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
>> drivers/staging/media/allegro-dvt/allegro-core.c:749:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:756:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   include/linux/kern_levels.h:5:18: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:769:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c: In function 'allegro_mbox_read':
   include/linux/kern_levels.h:5:18: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:798:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'unsigned int' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:810:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:810:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:816:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'ssize_t {aka int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:816:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c: In function 'allegro_receive_message':
   include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'ssize_t {aka int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:1542:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'unsigned int' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:1542:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c: In function 'allegro_copy_firmware':
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
>> include/media/v4l2-common.h:85:16: note: in expansion of macro 'KERN_DEBUG'
       v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \
                   ^~~~~~~~~~
>> drivers/staging/media/allegro-dvt/allegro-core.c:1618:2: note: in expansion of macro 'v4l2_dbg'
     v4l2_dbg(1, debug, &dev->v4l2_dev,
     ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c: In function 'allegro_copy_fw_codec':
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
>> include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR'
     v4l2_printk(KERN_ERR, dev, fmt , ## arg)
                 ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:1640:3: note: in expansion of macro 'v4l2_err'
      v4l2_err(&dev->v4l2_dev,
      ^~~~~~~~
   include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
>> include/media/v4l2-common.h:85:16: note: in expansion of macro 'KERN_DEBUG'
       v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \
                   ^~~~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:1645:2: note: in expansion of macro 'v4l2_dbg'
     v4l2_dbg(1, debug, &dev->v4l2_dev,
     ^~~~~~~~
   include/linux/kern_levels.h:5:18: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
>> include/media/v4l2-common.h:85:16: note: in expansion of macro 'KERN_DEBUG'
       v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \
                   ^~~~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:1645:2: note: in expansion of macro 'v4l2_dbg'
     v4l2_dbg(1, debug, &dev->v4l2_dev,
     ^~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c: In function 'allegro_buf_queue':
   include/linux/kern_levels.h:5:18: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
>> include/media/v4l2-common.h:85:16: note: in expansion of macro 'KERN_DEBUG'
       v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \
                   ^~~~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:1949:3: note: in expansion of macro 'v4l2_dbg'
      v4l2_dbg(1, debug, &dev->v4l2_dev,
      ^~~~~~~~
   include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk'
     printk(level "%s: " fmt, (dev)->name , ## arg)
            ^~~~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
>> include/media/v4l2-common.h:85:16: note: in expansion of macro 'KERN_DEBUG'
       v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \
                   ^~~~~~~~~~
   drivers/staging/media/allegro-dvt/allegro-core.c:1949:3: note: in expansion of macro 'v4l2_dbg'
      v4l2_dbg(1, debug, &dev->v4l2_dev,
      ^~~~~~~~

vim +/v4l2_err +749 drivers/staging/media/allegro-dvt/allegro-core.c

   736	
   737	static int allegro_mbox_write(struct allegro_dev *dev,
   738				      struct allegro_mbox *mbox, void *src, size_t size)
   739	{
   740		struct mcu_msg_header *header = src;
   741		unsigned int tail;
   742		size_t size_no_wrap;
   743		int err = 0;
   744	
   745		if (!src)
   746			return -EINVAL;
   747	
   748		if (size > mbox->size) {
 > 749			v4l2_err(&dev->v4l2_dev,
   750				 "message (%lu bytes) to large for mailbox (%lu bytes)\n",
   751				 size, mbox->size);
   752			return -EINVAL;
   753		}
   754	
   755		if (header->length != size - sizeof(*header)) {
   756			v4l2_err(&dev->v4l2_dev,
   757				 "invalid message length: %u bytes (expected %lu bytes)\n",
   758				 header->length, size - sizeof(*header));
   759			return -EINVAL;
   760		}
   761	
   762		v4l2_dbg(2, debug, &dev->v4l2_dev,
   763			"write command message: type %s, body length %d\n",
   764			msg_type_name(header->type), header->length);
   765	
   766		mutex_lock(&mbox->lock);
   767		regmap_read(dev->sram, mbox->tail, &tail);
   768		if (tail > mbox->size) {
   769			v4l2_err(&dev->v4l2_dev,
   770				 "invalid tail (0x%x): must be smaller than mailbox size (0x%lx)\n",
   771				 tail, mbox->size);
   772			err = -EIO;
   773			goto out;
   774		}
   775		size_no_wrap = min(size, mbox->size - (size_t)tail);
   776		regmap_bulk_write(dev->sram, mbox->data + tail, src, size_no_wrap / 4);
   777		regmap_bulk_write(dev->sram, mbox->data,
   778				  src + size_no_wrap, (size - size_no_wrap) / 4);
   779		regmap_write(dev->sram, mbox->tail, (tail + size) % mbox->size);
   780	
   781	out:
   782		mutex_unlock(&mbox->lock);
   783	
   784		return err;
   785	}
   786	

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

Attachment: .config.gz
Description: application/gzip


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