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* [chrome-os:chromeos-5.10 6618/7370] drivers/gpu/drm/evdi/evdi_gem.c:252:18: error: implicit declaration of function 'vmap'; did you mean 'kmap'?
@ 2021-04-15  2:51 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-04-15  2:51 UTC (permalink / raw)
  To: kbuild-all

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tree:   https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.10
head:   855263bf4aea5d744a18fc47c36fce003a497090
commit: 5d42c7b3d93d6ce4f7cfbfc0f0d6ea2c2445406a [6618/7370] CHROMIUM: Import latest evdi driver
config: mips-allyesconfig (attached as .config)
compiler: mips-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 remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel
        git fetch --no-tags chrome-os chromeos-5.10
        git checkout 5d42c7b3d93d6ce4f7cfbfc0f0d6ea2c2445406a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=mips 

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

All error/warnings (new ones prefixed by >>):

   cc1: warning: include/drm: No such file or directory [-Wmissing-include-dirs]
   drivers/gpu/drm/evdi/evdi_gem.c: In function 'evdi_gem_vmap':
   drivers/gpu/drm/evdi/evdi_gem.c:241:19: error: too few arguments to function 'dma_buf_vmap'
     241 |   obj->vmapping = dma_buf_vmap(obj->base.import_attach->dmabuf);
         |                   ^~~~~~~~~~~~
   In file included from drivers/gpu/drm/evdi/evdi_gem.c:18:
   include/linux/dma-buf.h:507:5: note: declared here
     507 | int dma_buf_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map);
         |     ^~~~~~~~~~~~
>> drivers/gpu/drm/evdi/evdi_gem.c:252:18: error: implicit declaration of function 'vmap'; did you mean 'kmap'? [-Werror=implicit-function-declaration]
     252 |  obj->vmapping = vmap(obj->pages, page_count, 0, PAGE_KERNEL);
         |                  ^~~~
         |                  kmap
>> drivers/gpu/drm/evdi/evdi_gem.c:252:16: warning: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
     252 |  obj->vmapping = vmap(obj->pages, page_count, 0, PAGE_KERNEL);
         |                ^
   drivers/gpu/drm/evdi/evdi_gem.c: In function 'evdi_gem_vunmap':
>> drivers/gpu/drm/evdi/evdi_gem.c:273:3: error: implicit declaration of function 'vunmap'; did you mean 'kunmap'? [-Werror=implicit-function-declaration]
     273 |   vunmap(obj->vmapping);
         |   ^~~~~~
         |   kunmap
   cc1: some warnings being treated as errors


vim +252 drivers/gpu/drm/evdi/evdi_gem.c

3e21cedd503fab Aleksander Miera 2018-03-15  226  
3e21cedd503fab Aleksander Miera 2018-03-15  227  int evdi_gem_vmap(struct evdi_gem_object *obj)
3e21cedd503fab Aleksander Miera 2018-03-15  228  {
3e21cedd503fab Aleksander Miera 2018-03-15  229  	int page_count = obj->base.size / PAGE_SIZE;
3e21cedd503fab Aleksander Miera 2018-03-15  230  	int ret;
3e21cedd503fab Aleksander Miera 2018-03-15  231  
3e21cedd503fab Aleksander Miera 2018-03-15  232  	if (obj->base.import_attach) {
5d42c7b3d93d6c Sean Paul        2021-04-09  233  #if KERNEL_VERSION(5, 11, 0) <= LINUX_VERSION_CODE
5d42c7b3d93d6c Sean Paul        2021-04-09  234  		struct dma_buf_map map;
5d42c7b3d93d6c Sean Paul        2021-04-09  235  
5d42c7b3d93d6c Sean Paul        2021-04-09  236  		ret = dma_buf_vmap(obj->base.import_attach->dmabuf, &map);
5d42c7b3d93d6c Sean Paul        2021-04-09  237  		if (ret)
5d42c7b3d93d6c Sean Paul        2021-04-09  238  			return -ENOMEM;
5d42c7b3d93d6c Sean Paul        2021-04-09  239  		obj->vmapping = map.vaddr;
5d42c7b3d93d6c Sean Paul        2021-04-09  240  #else
3e21cedd503fab Aleksander Miera 2018-03-15 @241  		obj->vmapping = dma_buf_vmap(obj->base.import_attach->dmabuf);
3e21cedd503fab Aleksander Miera 2018-03-15  242  		if (!obj->vmapping)
3e21cedd503fab Aleksander Miera 2018-03-15  243  			return -ENOMEM;
5d42c7b3d93d6c Sean Paul        2021-04-09  244  #endif
3e21cedd503fab Aleksander Miera 2018-03-15  245  		return 0;
3e21cedd503fab Aleksander Miera 2018-03-15  246  	}
3e21cedd503fab Aleksander Miera 2018-03-15  247  
67442e0531eb83 Guenter Roeck    2020-11-04  248  	ret = evdi_gem_get_pages(obj, GFP_KERNEL);
3e21cedd503fab Aleksander Miera 2018-03-15  249  	if (ret)
3e21cedd503fab Aleksander Miera 2018-03-15  250  		return ret;
3e21cedd503fab Aleksander Miera 2018-03-15  251  
3e21cedd503fab Aleksander Miera 2018-03-15 @252  	obj->vmapping = vmap(obj->pages, page_count, 0, PAGE_KERNEL);
3e21cedd503fab Aleksander Miera 2018-03-15  253  	if (!obj->vmapping)
3e21cedd503fab Aleksander Miera 2018-03-15  254  		return -ENOMEM;
3e21cedd503fab Aleksander Miera 2018-03-15  255  	return 0;
3e21cedd503fab Aleksander Miera 2018-03-15  256  }
3e21cedd503fab Aleksander Miera 2018-03-15  257  
3e21cedd503fab Aleksander Miera 2018-03-15  258  void evdi_gem_vunmap(struct evdi_gem_object *obj)
3e21cedd503fab Aleksander Miera 2018-03-15  259  {
3e21cedd503fab Aleksander Miera 2018-03-15  260  	if (obj->base.import_attach) {
5d42c7b3d93d6c Sean Paul        2021-04-09  261  #if KERNEL_VERSION(5, 11, 0) <= LINUX_VERSION_CODE
5d42c7b3d93d6c Sean Paul        2021-04-09  262  		struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(obj->vmapping);
5d42c7b3d93d6c Sean Paul        2021-04-09  263  
5d42c7b3d93d6c Sean Paul        2021-04-09  264  		dma_buf_vunmap(obj->base.import_attach->dmabuf, &map);
5d42c7b3d93d6c Sean Paul        2021-04-09  265  #else
3e21cedd503fab Aleksander Miera 2018-03-15  266  		dma_buf_vunmap(obj->base.import_attach->dmabuf, obj->vmapping);
5d42c7b3d93d6c Sean Paul        2021-04-09  267  #endif
3e21cedd503fab Aleksander Miera 2018-03-15  268  		obj->vmapping = NULL;
3e21cedd503fab Aleksander Miera 2018-03-15  269  		return;
3e21cedd503fab Aleksander Miera 2018-03-15  270  	}
3e21cedd503fab Aleksander Miera 2018-03-15  271  
3e21cedd503fab Aleksander Miera 2018-03-15  272  	if (obj->vmapping) {
3e21cedd503fab Aleksander Miera 2018-03-15 @273  		vunmap(obj->vmapping);
3e21cedd503fab Aleksander Miera 2018-03-15  274  		obj->vmapping = NULL;
3e21cedd503fab Aleksander Miera 2018-03-15  275  	}
3e21cedd503fab Aleksander Miera 2018-03-15  276  
3e21cedd503fab Aleksander Miera 2018-03-15  277  	evdi_gem_put_pages(obj);
3e21cedd503fab Aleksander Miera 2018-03-15  278  }
3e21cedd503fab Aleksander Miera 2018-03-15  279  

:::::: The code at line 252 was first introduced by commit
:::::: 3e21cedd503fabd195cf407652bf87fd83e202ac drm/evdi: Add atomic evdi drm module

:::::: TO: Aleksander Miera <aleksander.miera@displaylink.com>
:::::: CC: Guenter Roeck <groeck@chromium.org>

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

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2021-04-15  2:51 [chrome-os:chromeos-5.10 6618/7370] drivers/gpu/drm/evdi/evdi_gem.c:252:18: error: implicit declaration of function 'vmap'; did you mean 'kmap'? kernel test robot

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