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* [intel-linux-intel-lts:5.4/yocto 3/3] drivers/gpu/drm/hantro_driver/hantro.c:465:23: error: implicit declaration of function 'pgprot_noncached'
@ 2020-07-31 21:02 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2020-07-31 21:02 UTC (permalink / raw)
  To: kbuild-all

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tree:   https://github.com/intel/linux-intel-lts.git 5.4/yocto
head:   b8b4b73e4f7bffe85610b37cef411bf55b60fbe4
commit: b8b4b73e4f7bffe85610b37cef411bf55b60fbe4 [3/3] drm: Add Keembay media codec driver
config: m68k-randconfig-r011-20200731 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout b8b4b73e4f7bffe85610b37cef411bf55b60fbe4
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 

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

All errors (new ones prefixed by >>):

   In file included from include/linux/init.h:5,
                    from include/linux/io.h:10,
                    from drivers/gpu/drm/hantro_driver/hantro.c:22:
   include/linux/scatterlist.h: In function 'sg_set_buf':
   arch/m68k/include/asm/page_no.h:33:50: warning: ordered comparison of pointer with null pointer [-Wextra]
      33 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
         |                                                  ^~
   include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
      78 | # define unlikely(x) __builtin_expect(!!(x), 0)
         |                                          ^
   include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON'
     143 |  BUG_ON(!virt_addr_valid(buf));
         |  ^~~~~~
   include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid'
     143 |  BUG_ON(!virt_addr_valid(buf));
         |          ^~~~~~~~~~~~~~~
   drivers/gpu/drm/hantro_driver/hantro.c: In function 'hantro_gem_dumb_create_internal':
   drivers/gpu/drm/hantro_driver/hantro.c:183:15: warning: variable 'out_size' set but not used [-Wunused-but-set-variable]
     183 |  int in_size, out_size;
         |               ^~~~~~~~
   drivers/gpu/drm/hantro_driver/hantro.c: In function 'hantro_mmap':
>> drivers/gpu/drm/hantro_driver/hantro.c:465:23: error: implicit declaration of function 'pgprot_noncached' [-Werror=implicit-function-declaration]
     465 |   vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
         |                       ^~~~~~~~~~~~~~~~
>> drivers/gpu/drm/hantro_driver/hantro.c:465:23: error: incompatible types when assigning to type 'pgprot_t' {aka 'struct <anonymous>'} from type 'int'
   drivers/gpu/drm/hantro_driver/hantro.c:416:22: warning: variable 'pscatter' set but not used [-Wunused-but-set-variable]
     416 |  struct scatterlist *pscatter = NULL;
         |                      ^~~~~~~~
   drivers/gpu/drm/hantro_driver/hantro.c: At top level:
   drivers/gpu/drm/hantro_driver/hantro.c:1509:6: warning: no previous prototype for 'hantro_gem_vm_close' [-Wmissing-prototypes]
    1509 | void hantro_gem_vm_close(struct vm_area_struct *vma)
         |      ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/hantro_driver/hantro.c:1952:13: warning: no previous prototype for 'hantro_cleanup' [-Wmissing-prototypes]
    1952 | void __exit hantro_cleanup(void)
         |             ^~~~~~~~~~~~~~
   drivers/gpu/drm/hantro_driver/hantro.c:1974:12: warning: no previous prototype for 'hantro_init' [-Wmissing-prototypes]
    1974 | int __init hantro_init(void)
         |            ^~~~~~~~~~~
   drivers/gpu/drm/hantro_driver/hantro.c:1943:42: warning: 'hantro_platform_info' defined but not used [-Wunused-const-variable=]
    1943 | static const struct platform_device_info hantro_platform_info = {
         |                                          ^~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/pgprot_noncached +465 drivers/gpu/drm/hantro_driver/hantro.c

   404	
   405	static int hantro_mmap(
   406		struct file *filp,
   407		struct vm_area_struct *vma)
   408	{
   409		int ret = 0;
   410		struct drm_gem_object *obj = NULL;
   411		struct drm_gem_hantro_object *cma_obj;
   412		struct drm_vma_offset_node *node;
   413		unsigned long page_num = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
   414		unsigned long address = 0;
   415		int sgtidx = 0;
   416		struct scatterlist *pscatter = NULL;
   417		struct page **pages = NULL;
   418	
   419		if (mutex_lock_interruptible(&hantro_dev.drm_dev->struct_mutex))
   420			return -EBUSY;
   421		drm_vma_offset_lock_lookup(hantro_dev.drm_dev->vma_offset_manager);
   422		node = drm_vma_offset_exact_lookup_locked(hantro_dev.drm_dev->vma_offset_manager,
   423			vma->vm_pgoff,
   424			vma_pages(vma));
   425	
   426		if (likely(node)) {
   427			obj = container_of(node, struct drm_gem_object, vma_node);
   428			if (!kref_get_unless_zero(&obj->refcount))
   429				obj = NULL;
   430		}
   431		drm_vma_offset_unlock_lookup(hantro_dev.drm_dev->vma_offset_manager);
   432		hantro_unref_drmobj(obj);
   433	
   434		if (!obj) {
   435			mutex_unlock(&hantro_dev.drm_dev->struct_mutex);
   436			return -EINVAL;
   437		}
   438		cma_obj = to_drm_gem_hantro_obj(obj);
   439	
   440		if (page_num > cma_obj->num_pages) {
   441			mutex_unlock(&hantro_dev.drm_dev->struct_mutex);
   442			return -EINVAL;
   443		}
   444	
   445		if ((cma_obj->flag & HANTRO_GEM_FLAG_IMPORT) == 0) {
   446			address = (unsigned long)cma_obj->vaddr;
   447			if (address == 0) {
   448				mutex_unlock(&hantro_dev.drm_dev->struct_mutex);
   449				return -EINVAL;
   450			}
   451			ret = drm_gem_mmap_obj(
   452					obj,
   453					drm_vma_node_size(node) << PAGE_SHIFT,
   454					vma);
   455	
   456			if (ret) {
   457				mutex_unlock(&hantro_dev.drm_dev->struct_mutex);
   458				return ret;
   459			}
   460		} else {
   461			pscatter = &cma_obj->sgt->sgl[sgtidx];
   462	#ifdef __amd64__
   463			set_memory_uc((unsigned long)cma_obj->vaddr, (int)page_num);
   464	#endif
 > 465			vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
   466			/*else mmap report uncached error for some importer, e.g. i915*/
   467		}
   468	
   469		vma->vm_pgoff = 0;
   470		if (cma_obj->ddr_channel == DDR0_CHANNEL)
   471			ddr_dev = hantro_dev.drm_dev->dev;
   472		else if (cma_obj->ddr_channel == DDR1_CHANNEL)
   473			ddr_dev = ddr1.dev;
   474	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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2020-07-31 21:02 [intel-linux-intel-lts:5.4/yocto 3/3] drivers/gpu/drm/hantro_driver/hantro.c:465:23: error: implicit declaration of function 'pgprot_noncached' kernel test robot

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