Hi Yuval, [auto build test WARNING on net-next/master] [also build test WARNING on v4.11 next-20170511] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Yuval-Shaia/net-mlx4_core-Use-min3-to-select-number-of-MSI-X-vectors/20170511-184906 reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute >> drivers/net/ethernet/mellanox/mlx4/main.c:2865:28: sparse: incompatible >> types in comparison expression (different signedness) >> drivers/net/ethernet/mellanox/mlx4/main.c:2865:28: sparse: incompatible >> types in comparison expression (different signedness) >> drivers/net/ethernet/mellanox/mlx4/main.c:2865:28: sparse: incompatible >> types in comparison expression (different signedness) In file included from include/linux/list.h:8:0, from include/linux/module.h:9, from drivers/net/ethernet/mellanox/mlx4/main.c:36: drivers/net/ethernet/mellanox/mlx4/main.c: In function 'mlx4_enable_msi_x': include/linux/kernel.h:757:16: warning: comparison of distinct pointer types lacks a cast (void) (&min1 == &min2); \ ^ include/linux/kernel.h:755:2: note: in definition of macro '__min' t1 min1 = (x); \ ^~ include/linux/kernel.h:774:23: note: in expansion of macro 'min' #define min3(x, y, z) min((typeof(x))min(x, y), z) ^~~ include/linux/kernel.h:760:2: note: in expansion of macro '__min' __min(typeof(x), typeof(y), \ ^~~~~ include/linux/kernel.h:774:38: note: in expansion of macro 'min' #define min3(x, y, z) min((typeof(x))min(x, y), z) ^~~ drivers/net/ethernet/mellanox/mlx4/main.c:2865:14: note: in expansion of macro 'min3' int nreq = min3(dev->caps.num_ports * num_online_cpus() + 1, ^~~~ include/linux/kernel.h:757:16: warning: comparison of distinct pointer types lacks a cast (void) (&min1 == &min2); \ ^ include/linux/kernel.h:755:13: note: in definition of macro '__min' t1 min1 = (x); \ ^ include/linux/kernel.h:774:23: note: in expansion of macro 'min' #define min3(x, y, z) min((typeof(x))min(x, y), z) ^~~ include/linux/kernel.h:760:2: note: in expansion of macro '__min' __min(typeof(x), typeof(y), \ ^~~~~ include/linux/kernel.h:774:38: note: in expansion of macro 'min' #define min3(x, y, z) min((typeof(x))min(x, y), z) ^~~ drivers/net/ethernet/mellanox/mlx4/main.c:2865:14: note: in expansion of macro 'min3' int nreq = min3(dev->caps.num_ports * num_online_cpus() + 1, ^~~~ include/linux/kernel.h:757:16: warning: comparison of distinct pointer types lacks a cast (void) (&min1 == &min2); \ ^ include/linux/kernel.h:760:2: note: in expansion of macro '__min' __min(typeof(x), typeof(y), \ ^~~~~ include/linux/kernel.h:774:23: note: in expansion of macro 'min' #define min3(x, y, z) min((typeof(x))min(x, y), z) ^~~ drivers/net/ethernet/mellanox/mlx4/main.c:2865:14: note: in expansion of macro 'min3' int nreq = min3(dev->caps.num_ports * num_online_cpus() + 1, ^~~~ vim +2865 drivers/net/ethernet/mellanox/mlx4/main.c 2849 if (!zalloc_cpumask_var(&eq->affinity_mask, GFP_KERNEL)) 2850 return -ENOMEM; 2851 2852 cpumask_set_cpu(requested_cpu, eq->affinity_mask); 2853 2854 return 0; 2855 } 2856 2857 static void mlx4_enable_msi_x(struct mlx4_dev *dev) 2858 { 2859 struct mlx4_priv *priv = mlx4_priv(dev); 2860 struct msix_entry *entries; 2861 int i; 2862 int port = 0; 2863 2864 if (msi_x) { > 2865 int nreq = min3(dev->caps.num_ports * num_online_cpus() > + 1, 2866 dev->caps.num_eqs - dev->caps.reserved_eqs, 2867 MAX_MSIX); 2868 2869 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL); 2870 if (!entries) 2871 goto no_msi; 2872 2873 for (i = 0; i < nreq; ++i) --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
