[lkp@intel.com: [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]

["Michael S. Tsirkin" <mst@redhat.com>]

CC Dragos.
Does one of you want to post a MAINTAINERS patch btw?


----- Forwarded message from kernel test robot <lkp@intel.com> -----

From: kernel test robot <lkp@intel.com>
Date: Sun, 23 Apr 2023 07:29:38 +0800
To: Eli Cohen <elic@nvidia.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List <linux-mm@kvack.org>, "Michael S. Tsirkin"
	<mst@redhat.com>, Saeed Mahameed <saeedm@nvidia.com>
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@intel.com>

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@intel.com/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@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304230755.9jjF6ZJr-lkp@intel.com/

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

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