drivers/net/ethernet/mellanox/mlx5/core/esw/indir_table.h:34:1: warning: no previous prototype for function 'mlx5_esw_indir_table_init'

From: kernel test robot
Date: Sun Feb 28 2021 - 17:16:03 EST


Hi Vlad,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 06d5d309a3f17e32cd59926f391db1e1ea652184
commit: 34ca65352ddf2aaa094f4016369103c4c7b98958 net/mlx5: E-Switch, Indirect table infrastructure
date: 3 weeks ago
config: x86_64-randconfig-a001-20210301 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project b077d82b00d81934c7c27ac89dd8b0e7f448bded)
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
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34ca65352ddf2aaa094f4016369103c4c7b98958
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 34ca65352ddf2aaa094f4016369103c4c7b98958
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

In file included from drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c:41:
>> drivers/net/ethernet/mellanox/mlx5/core/esw/indir_table.h:34:1: warning: no previous prototype for function 'mlx5_esw_indir_table_init' [-Wmissing-prototypes]
mlx5_esw_indir_table_init(void)
^
drivers/net/ethernet/mellanox/mlx5/core/esw/indir_table.h:33:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
struct mlx5_esw_indir_table *
^
static
>> drivers/net/ethernet/mellanox/mlx5/core/esw/indir_table.h:40:1: warning: no previous prototype for function 'mlx5_esw_indir_table_destroy' [-Wmissing-prototypes]
mlx5_esw_indir_table_destroy(struct mlx5_esw_indir_table *indir)
^
drivers/net/ethernet/mellanox/mlx5/core/esw/indir_table.h:39:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void
^
static
>> drivers/net/ethernet/mellanox/mlx5/core/esw/indir_table.h:61:1: warning: no previous prototype for function 'mlx5_esw_indir_table_needed' [-Wmissing-prototypes]
mlx5_esw_indir_table_needed(struct mlx5_eswitch *esw,
^
drivers/net/ethernet/mellanox/mlx5/core/esw/indir_table.h:60:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
bool
^
static
3 warnings generated.


vim +/mlx5_esw_indir_table_init +34 drivers/net/ethernet/mellanox/mlx5/core/esw/indir_table.h

30
31 #else
32 /* indir API stubs */
33 struct mlx5_esw_indir_table *
> 34 mlx5_esw_indir_table_init(void)
35 {
36 return NULL;
37 }
38
39 void
> 40 mlx5_esw_indir_table_destroy(struct mlx5_esw_indir_table *indir)
41 {
42 }
43
44 static inline struct mlx5_flow_table *
45 mlx5_esw_indir_table_get(struct mlx5_eswitch *esw,
46 struct mlx5_flow_attr *attr,
47 struct mlx5_flow_spec *spec,
48 u16 vport, bool decap)
49 {
50 return ERR_PTR(-EOPNOTSUPP);
51 }
52
53 static inline void
54 mlx5_esw_indir_table_put(struct mlx5_eswitch *esw,
55 struct mlx5_flow_attr *attr,
56 u16 vport, bool decap)
57 {
58 }
59
60 bool
> 61 mlx5_esw_indir_table_needed(struct mlx5_eswitch *esw,
62 struct mlx5_flow_attr *attr,
63 u16 vport_num,
64 struct mlx5_core_dev *dest_mdev)
65 {
66 return false;
67 }
68

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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