Re: [Intel-wired-lan] [PATCH bpf RFC-V3 4/5] mlx4: bpf_xdp_metadata_rx_hash add xdp rss hash type

[kernel test robot <lkp@intel.com>]

Hi Jesper,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on bpf/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Jesper-Dangaard-Brouer/xdp-rss-hash-types-representation/20230331-010857
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git master
patch link:    https://lore.kernel.org/r/168019608094.3557870.11753259102366277974.stgit%40firesoul
patch subject: [Intel-wired-lan] [PATCH bpf RFC-V3 4/5] mlx4: bpf_xdp_metadata_rx_hash add xdp rss hash type
config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20230331/202303310203.lHSJJtAT-lkp@intel.com/config)
compiler: s390-linux-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/8d79e730d9b22b00ef3a0bbf73d3aa2c68fb898b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Jesper-Dangaard-Brouer/xdp-rss-hash-types-representation/20230331-010857
        git checkout 8d79e730d9b22b00ef3a0bbf73d3aa2c68fb898b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/net/ethernet/mellanox/mlx4/

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/202303310203.lHSJJtAT-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/mellanox/mlx4/en_rx.c: In function 'mlx4_en_xdp_rx_hash':
>> drivers/net/ethernet/mellanox/mlx4/en_rx.c:698:21: warning: implicit conversion from 'enum xdp_rss_type_bits' to 'enum xdp_rss_hash_type' [-Wenum-conversion]
     698 |                 xht = XDP_RSS_L4_TCP;
         |                     ^
   drivers/net/ethernet/mellanox/mlx4/en_rx.c:700:21: warning: implicit conversion from 'enum xdp_rss_type_bits' to 'enum xdp_rss_hash_type' [-Wenum-conversion]
     700 |                 xht = XDP_RSS_L4_UDP;
         |                     ^


vim +698 drivers/net/ethernet/mellanox/mlx4/en_rx.c

   683	
   684	int mlx4_en_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash,
   685				enum xdp_rss_hash_type *rss_type)
   686	{
   687		struct mlx4_en_xdp_buff *_ctx = (void *)ctx;
   688		struct mlx4_cqe *cqe = _ctx->cqe;
   689		enum xdp_rss_hash_type xht = 0;
   690		__be16 status;
   691	
   692		if (unlikely(!(_ctx->dev->features & NETIF_F_RXHASH)))
   693			return -ENODATA;
   694	
   695		*hash = be32_to_cpu(cqe->immed_rss_invalid);
   696		status = cqe->status;
   697		if (status & cpu_to_be16(MLX4_CQE_STATUS_TCP))
 > 698			xht = XDP_RSS_L4_TCP;
   699		if (status & cpu_to_be16(MLX4_CQE_STATUS_UDP))
   700			xht = XDP_RSS_L4_UDP;
   701		if (status & cpu_to_be16(MLX4_CQE_STATUS_IPV4|MLX4_CQE_STATUS_IPV4F))
   702			xht |= XDP_RSS_L3_IPV4;
   703		if (status & cpu_to_be16(MLX4_CQE_STATUS_IPV6)) {
   704			xht |= XDP_RSS_L3_IPV6;
   705			if (cqe->ipv6_ext_mask)
   706				xht |= XDP_RSS_L3_DYNHDR;
   707		}
   708		*rss_type = xht;
   709	
   710		return 0;
   711	}
   712	

-- 
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https://github.com/intel/lkp-tests