Re: [lkp@xxxxxxxxx: [linux-next:master 13449/13717] drivers/vdpa/mlx5/net/mlx5_vnet.c:2896:3: error: implicit declaration of function 'mlx5_msix_free' is invalid in C99]

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Sorry got confused. Referring to the robot warning here.

On Sun, Apr 23, 2023 at 07:29:45AM +0000, Eli Cohen wrote:
> Are you referring to kernel robot warning or to updating MAINTAINERS?
> I was not the maintainer of anything so not sure what you mean here.
> 
> > -----Original Message-----
> > From: Michael S. Tsirkin <mst@xxxxxxxxxx>
> > Sent: Sunday, 23 April 2023 10:11
> > To: Dragos Tatulea <dtatulea@xxxxxxxxxx>; Eli Cohen <elic@xxxxxxxxxx>
> > Cc: llvm@xxxxxxxxxxxxxxx; oe-kbuild-all@xxxxxxxxxxxxxxx; Linux Memory
> > Management List <linux-mm@xxxxxxxxx>; Michael S. Tsirkin
> > <mst@xxxxxxxxxx>; Saeed Mahameed <saeedm@xxxxxxxxxx>
> > Subject: [lkp@xxxxxxxxx: [linux-next:master 13449/13717]
> > drivers/vdpa/mlx5/net/mlx5_vnet.c:2896:3: error: implicit declaration of
> > function 'mlx5_msix_free' is invalid in C99]
> > 
> > CC Dragos.
> > Does one of you want to post a MAINTAINERS patch btw?
> > 
> > 
> > ----- Forwarded message from kernel test robot <lkp@xxxxxxxxx> -----
> > 
> > From: kernel test robot <lkp@xxxxxxxxx>
> > Date: Sun, 23 Apr 2023 07:29:38 +0800
> > To: Eli Cohen <elic@xxxxxxxxxx>
> > Cc: llvm@xxxxxxxxxxxxxxx, oe-kbuild-all@xxxxxxxxxxxxxxx, Linux Memory
> > Management List <linux-mm@xxxxxxxxx>, "Michael S. Tsirkin"
> > 	<mst@xxxxxxxxxx>, Saeed Mahameed <saeedm@xxxxxxxxxx>
> > Subject: [linux-next:master 13449/13717]
> > drivers/vdpa/mlx5/net/mlx5_vnet.c:2896:3: error: implicit declaration of
> > function
> > 	'mlx5_msix_free' is invalid in C99
> > Message-ID: <202304230755.9jjF6ZJr-lkp@xxxxxxxxx>
> > 
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> > master
> > head:   d3e1ee0e67e7603d36f4fa2fec6b881c01aabe89
> > commit: b9ca712f33f59e977592cb639c2e00a02f45a146 [13449/13717]
> > vdpa/mlx5: Support interrupt bypassing
> > config: x86_64-allmodconfig (https://download.01.org/0day-
> > ci/archive/20230423/202304230755.9jjF6ZJr-lkp@xxxxxxxxx/config)
> > compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project
> > f28c006a5895fc0e329fe15fead81e37457cb1d1)
> > 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-
> > next.git/commit/?id=b9ca712f33f59e977592cb639c2e00a02f45a146
> >         git remote add linux-next
> > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> >         git fetch --no-tags linux-next master
> >         git checkout b9ca712f33f59e977592cb639c2e00a02f45a146
> >         # save the config file
> >         mkdir build_dir && cp config build_dir/.config
> >         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross
> > W=1 O=build_dir ARCH=x86_64 olddefconfig
> >         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross
> > W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/xen/
> > drivers/power/supply/ drivers/vdpa/mlx5/
> > 
> > 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/202304230755.9jjF6ZJr-
> > lkp@xxxxxxxxx/
> > 
> > Note: the linux-next/master HEAD
> > d3e1ee0e67e7603d36f4fa2fec6b881c01aabe89 builds fine.
> >       It may have been fixed somewhere.
> > 
> > All errors (new ones prefixed by >>):
> > 
> > >> drivers/vdpa/mlx5/net/mlx5_vnet.c:2896:3: error: implicit declaration of
> > function 'mlx5_msix_free' is invalid in C99 [-Werror,-Wimplicit-function-
> > declaration]
> >                    mlx5_msix_free(ndev->mvdev.mdev, ent->map);
> >                    ^
> >    drivers/vdpa/mlx5/net/mlx5_vnet.c:2896:3: note: did you mean
> > 'mlx5_db_free'?
> >    include/linux/mlx5/driver.h:1083:6: note: 'mlx5_db_free' declared here
> >    void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
> >         ^
> > >> drivers/vdpa/mlx5/net/mlx5_vnet.c:3259:14: error: implicit declaration of
> > function 'mlx5_msix_alloc' is invalid in C99 [-Werror,-Wimplicit-function-
> > declaration]
> >                    ent->map = mlx5_msix_alloc(ndev->mvdev.mdev, int_handler,
> > NULL, ent->name);
> >                               ^
> >    drivers/vdpa/mlx5/net/mlx5_vnet.c:3259:14: note: did you mean
> > 'mlx5_db_alloc'?
> >    include/linux/mlx5/driver.h:1078:19: note: 'mlx5_db_alloc' declared here
> >    static inline int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db
> > *db)
> >                      ^
> > >> drivers/vdpa/mlx5/net/mlx5_vnet.c:3259:12: error: assigning to 'struct
> > msi_map' from incompatible type 'int'
> >                    ent->map = mlx5_msix_alloc(ndev->mvdev.mdev, int_handler,
> > NULL, ent->name);
> >                             ^
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >    3 errors generated.
> > 
> > 
> > vim +/mlx5_msix_free +2896 drivers/vdpa/mlx5/net/mlx5_vnet.c
> > 
> >   2885
> >   2886	static void free_irqs(struct mlx5_vdpa_net *ndev)
> >   2887	{
> >   2888		struct mlx5_vdpa_irq_pool_entry *ent;
> >   2889		int i;
> >   2890
> >   2891		if (!msix_mode_supported(&ndev->mvdev))
> >   2892			return;
> >   2893
> >   2894		for (i = ndev->irqp.num_ent - 1; i >= 0; i--) {
> >   2895			ent = ndev->irqp.entries + i;
> > > 2896			mlx5_msix_free(ndev->mvdev.mdev, ent->map);
> >   2897		}
> >   2898		kfree(ndev->irqp.entries);
> >   2899	}
> >   2900
> > 
> > --
> > 0-DAY CI Kernel Test Service
> > https://github.com/intel/lkp-tests
> > 
> > ----- End forwarded message -----
> 





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