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* [hch-misc:vgaarb-cleanups 4/4] drivers/gpu/drm/vkms/vkms_drv.c:155:9: warning: shift count >= width of type
@ 2021-03-15 13:04 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-03-15 13:04 UTC (permalink / raw)
  To: kbuild-all

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tree:   git://git.infradead.org/users/hch/misc.git vgaarb-cleanups
head:   06ce75527991e82573f5127a13dd1550c3045c35
commit: 06ce75527991e82573f5127a13dd1550c3045c35 [4/4] vgaarb: remove the unused irq_set_state argument to vga_client_register
config: x86_64-randconfig-r016-20210315 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a28facba1ccdc957f386b7753f4958307f1bfde8)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        git remote add hch-misc git://git.infradead.org/users/hch/misc.git
        git fetch --no-tags hch-misc vgaarb-cleanups
        git checkout 06ce75527991e82573f5127a13dd1550c3045c35
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

   In file included from drivers/gpu/drm/vkms/vkms_drv.c:20:
   In file included from include/drm/drm_fb_helper.h:39:
   include/linux/vgaarb.h:136:40: error: too many arguments to function call, expected 3, have 4
           vga_client_register(pdev, NULL, NULL, NULL);
           ~~~~~~~~~~~~~~~~~~~                   ^~~~
   include/linux/stddef.h:8:14: note: expanded from macro 'NULL'
   #define NULL ((void *)0)
                ^~~~~~~~~~~
   include/linux/vgaarb.h:124:5: note: 'vga_client_register' declared here
   int vga_client_register(struct pci_dev *pdev, void *cookie,
       ^
>> drivers/gpu/drm/vkms/vkms_drv.c:155:9: warning: shift count >= width of type [-Wshift-count-overflow]
                                              DMA_BIT_MASK(64));
                                              ^~~~~~~~~~~~~~~~
   include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK'
   #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
                                                        ^ ~~~
   1 warning and 1 error generated.


vim +155 drivers/gpu/drm/vkms/vkms_drv.c

c04372ea4abd83 Rodrigo Siqueira    2018-05-16  128  
2df7af93fdadb9 Sumera Priyadarsini 2021-01-12  129  static int vkms_create(struct vkms_config *config)
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  130  {
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  131  	int ret;
53d77aaa3f76d2 Daniel Vetter       2020-09-09  132  	struct platform_device *pdev;
2df7af93fdadb9 Sumera Priyadarsini 2021-01-12  133  	struct vkms_device *vkms_device;
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  134  
53d77aaa3f76d2 Daniel Vetter       2020-09-09  135  	pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0);
53d77aaa3f76d2 Daniel Vetter       2020-09-09  136  	if (IS_ERR(pdev))
53d77aaa3f76d2 Daniel Vetter       2020-09-09  137  		return PTR_ERR(pdev);
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  138  
53d77aaa3f76d2 Daniel Vetter       2020-09-09  139  	if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL)) {
53d77aaa3f76d2 Daniel Vetter       2020-09-09  140  		ret = -ENOMEM;
53d77aaa3f76d2 Daniel Vetter       2020-09-09  141  		goto out_unregister;
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  142  	}
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  143  
53d77aaa3f76d2 Daniel Vetter       2020-09-09  144  	vkms_device = devm_drm_dev_alloc(&pdev->dev, &vkms_driver,
53d77aaa3f76d2 Daniel Vetter       2020-09-09  145  					 struct vkms_device, drm);
53d77aaa3f76d2 Daniel Vetter       2020-09-09  146  	if (IS_ERR(vkms_device)) {
53d77aaa3f76d2 Daniel Vetter       2020-09-09  147  		ret = PTR_ERR(vkms_device);
53d77aaa3f76d2 Daniel Vetter       2020-09-09  148  		goto out_devres;
53d77aaa3f76d2 Daniel Vetter       2020-09-09  149  	}
53d77aaa3f76d2 Daniel Vetter       2020-09-09  150  	vkms_device->platform = pdev;
2df7af93fdadb9 Sumera Priyadarsini 2021-01-12  151  	vkms_device->config = config;
2df7af93fdadb9 Sumera Priyadarsini 2021-01-12  152  	config->dev = vkms_device;
633873e6cb884f Emil Velikov        2018-10-26  153  
94e2ec3f7fef86 Oleg Vasilev        2019-09-30  154  	ret = dma_coerce_mask_and_coherent(vkms_device->drm.dev,
94e2ec3f7fef86 Oleg Vasilev        2019-09-30 @155  					   DMA_BIT_MASK(64));
94e2ec3f7fef86 Oleg Vasilev        2019-09-30  156  
94e2ec3f7fef86 Oleg Vasilev        2019-09-30  157  	if (ret) {
94e2ec3f7fef86 Oleg Vasilev        2019-09-30  158  		DRM_ERROR("Could not initialize DMA support\n");
53d77aaa3f76d2 Daniel Vetter       2020-09-09  159  		goto out_devres;
94e2ec3f7fef86 Oleg Vasilev        2019-09-30  160  	}
94e2ec3f7fef86 Oleg Vasilev        2019-09-30  161  
3a0709928b172a Rodrigo Siqueira    2018-07-11  162  	vkms_device->drm.irq_enabled = true;
3a0709928b172a Rodrigo Siqueira    2018-07-11  163  
3a0709928b172a Rodrigo Siqueira    2018-07-11  164  	ret = drm_vblank_init(&vkms_device->drm, 1);
3a0709928b172a Rodrigo Siqueira    2018-07-11  165  	if (ret) {
3a0709928b172a Rodrigo Siqueira    2018-07-11  166  		DRM_ERROR("Failed to vblank\n");
53d77aaa3f76d2 Daniel Vetter       2020-09-09  167  		goto out_devres;
3a0709928b172a Rodrigo Siqueira    2018-07-11  168  	}
3a0709928b172a Rodrigo Siqueira    2018-07-11  169  
854502fa0a38dc Rodrigo Siqueira    2018-05-16  170  	ret = vkms_modeset_init(vkms_device);
854502fa0a38dc Rodrigo Siqueira    2018-05-16  171  	if (ret)
53d77aaa3f76d2 Daniel Vetter       2020-09-09  172  		goto out_devres;
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  173  
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  174  	ret = drm_dev_register(&vkms_device->drm, 0);
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  175  	if (ret)
53d77aaa3f76d2 Daniel Vetter       2020-09-09  176  		goto out_devres;
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  177  
ea40d7857d5250 Daniel Vetter       2020-10-10  178  	drm_fbdev_generic_setup(&vkms_device->drm, 0);
ea40d7857d5250 Daniel Vetter       2020-10-10  179  
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  180  	return 0;
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  181  
53d77aaa3f76d2 Daniel Vetter       2020-09-09  182  out_devres:
53d77aaa3f76d2 Daniel Vetter       2020-09-09  183  	devres_release_group(&pdev->dev, NULL);
633873e6cb884f Emil Velikov        2018-10-26  184  out_unregister:
53d77aaa3f76d2 Daniel Vetter       2020-09-09  185  	platform_device_unregister(pdev);
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  186  	return ret;
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  187  }
1c7c5fd916a0ff Haneen Mohammed     2018-05-14  188  

:::::: The code at line 155 was first introduced by commit
:::::: 94e2ec3f7fef86506293a448273b2b4ee21e6195 drm/vkms: prime import support

:::::: TO: Oleg Vasilev <omrigann@gmail.com>
:::::: CC: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>

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

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2021-03-15 13:04 [hch-misc:vgaarb-cleanups 4/4] drivers/gpu/drm/vkms/vkms_drv.c:155:9: warning: shift count >= width of type kernel test robot

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