Re: [PATCH v3 5/6] drm/etnaviv: expand driver support for the pci devices

[Sui Jingfeng]

Hi, pci_clear_master is located at pci.h.


 Added by commit 6a479079c07211bf348ac8a79754f26bea258f26 (PCI: Add 
pci_clear_master() as opposite of pci_set_master())


 I don't know what the reason arc architecture can't use this.


On 2023/3/30 08:07, kernel test robot wrote:
> Hi Sui,
>
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on drm-misc/drm-misc-next]
> [also build test ERROR on drm/drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.3-rc4 next-20230329]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Sui-Jingfeng/drm-etnaviv-add-a-dedicate-function-to-register-irq-handler-for-the-gpu/20230330-045519
> base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
> patch link:    https://lore.kernel.org/r/20230329205129.1513734-6-15330273260%40189.cn
> patch subject: [PATCH v3 5/6] drm/etnaviv: expand driver support for the pci devices
> config: arc-randconfig-r043-20230329 (https://download.01.org/0day-ci/archive/20230330/202303300759.E9lbKNTQ-lkp@xxxxxxxxx/config)
> compiler: arc-elf-gcc (GCC) 12.1.0
> 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
>          # https://github.com/intel-lab-lkp/linux/commit/cfc3554b9fbd8ca3f3f6731d45d811bfa7fdf777
>          git remote add linux-review https://github.com/intel-lab-lkp/linux
>          git fetch --no-tags linux-review Sui-Jingfeng/drm-etnaviv-add-a-dedicate-function-to-register-irq-handler-for-the-gpu/20230330-045519
>          git checkout cfc3554b9fbd8ca3f3f6731d45d811bfa7fdf777
>          # save the config file
>          mkdir build_dir && cp config build_dir/.config
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc olddefconfig
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash drivers/gpu/drm/etnaviv/
>
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> | Link: https://lore.kernel.org/oe-kbuild-all/202303300759.E9lbKNTQ-lkp@xxxxxxxxx/
>
> All errors (new ones prefixed by >>):
>
>     drivers/gpu/drm/etnaviv/etnaviv_pci_drv.c: In function 'etnaviv_gpu_pci_fini':
> > > drivers/gpu/drm/etnaviv/etnaviv_pci_drv.c:32:9: error: implicit declaration of function 'pci_clear_master'; did you mean 'pci_set_master'? [-Werror=implicit-function-declaration]
>        32 |         pci_clear_master(pdev);
>           |         ^~~~~~~~~~~~~~~~
>           |         pci_set_master
>     cc1: some warnings being treated as errors
>
>
> vim +32 drivers/gpu/drm/etnaviv/etnaviv_pci_drv.c
>
>      27	
>      28	static void etnaviv_gpu_pci_fini(struct etnaviv_gpu *gpu, bool component)
>      29	{
>      30		struct pci_dev *pdev = to_pci_dev(gpu->dev);
>      31	
>    > 32		pci_clear_master(pdev);
>      33	
>      34		dev_dbg(gpu->dev, "component is %s\n",
>      35			component ? "enabled" : "disabled");
>      36	}
>      37