[PATCH] mlxsw: spectrum: mark symbols static where possible

[PATCH] mlxsw: spectrum: mark symbols static where possible

[Baoyou Xie]

We get 3 warnings when building kernel with W=1:
drivers/net/ethernet/mellanox/mlxsw/spectrum.c:251:29: warning: no previous prototype for 'mlxsw_sp_span_entry_find' [-Wmissing-prototypes]
drivers/net/ethernet/mellanox/mlxsw/spectrum.c:265:29: warning: no previous prototype for 'mlxsw_sp_span_entry_get' [-Wmissing-prototypes]
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:1749:6: warning: no previous prototype for 'mlxsw_sp_fib_entry_put' [-Wmissing-prototypes]

In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
so this patch marks these functions with 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c        | 6 ++++--
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 4 ++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 1162e04..e680193 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -248,7 +248,8 @@ static void mlxsw_sp_span_entry_destroy(struct mlxsw_sp *mlxsw_sp,
 	span_entry->used = false;
 }
 
-struct mlxsw_sp_span_entry *mlxsw_sp_span_entry_find(struct mlxsw_sp_port *port)
+static struct
+mlxsw_sp_span_entry *mlxsw_sp_span_entry_find(struct mlxsw_sp_port *port)
 {
 	struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
 	int i;
@@ -262,7 +263,8 @@ struct mlxsw_sp_span_entry *mlxsw_sp_span_entry_find(struct mlxsw_sp_port *port)
 	return NULL;
 }
 
-struct mlxsw_sp_span_entry *mlxsw_sp_span_entry_get(struct mlxsw_sp_port *port)
+static struct
+mlxsw_sp_span_entry *mlxsw_sp_span_entry_get(struct mlxsw_sp_port *port)
 {
 	struct mlxsw_sp_span_entry *span_entry;
 
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 352259b..82cdeba 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -1746,8 +1746,8 @@ mlxsw_sp_fib_entry_find(struct mlxsw_sp *mlxsw_sp,
 					 fib4->fi->fib_dev);
 }
 
-void mlxsw_sp_fib_entry_put(struct mlxsw_sp *mlxsw_sp,
-			    struct mlxsw_sp_fib_entry *fib_entry)
+static void mlxsw_sp_fib_entry_put(struct mlxsw_sp *mlxsw_sp,
+				   struct mlxsw_sp_fib_entry *fib_entry)
 {
 	struct mlxsw_sp_vr *vr = fib_entry->vr;
 
-- 
2.7.4

Re: [PATCH] mlxsw: spectrum: mark symbols static where possible

[Ido Schimmel]

Hi,

On Sun, Sep 18, 2016 at 04:39:47PM +0800, Baoyou Xie wrote:
> We get 3 warnings when building kernel with W=1:
> drivers/net/ethernet/mellanox/mlxsw/spectrum.c:251:29: warning: no previous prototype for 'mlxsw_sp_span_entry_find' [-Wmissing-prototypes]
> drivers/net/ethernet/mellanox/mlxsw/spectrum.c:265:29: warning: no previous prototype for 'mlxsw_sp_span_entry_get' [-Wmissing-prototypes]
> drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:1749:6: warning: no previous prototype for 'mlxsw_sp_fib_entry_put' [-Wmissing-prototypes]
> 
> In fact, these functions are only used in the file in which they are
> declared and don't need a declaration, but can be made static.
> so this patch marks these functions with 'static'.
> 
> Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>

Thanks for the patch! We already have a patch that fixes sparse warnings
(including these) queued up. See:
https://github.com/jpirko/linux_mlxsw/commit/4800ed89f5da55a42a173d5cf9225d4fbb8a96bd

But since we already have one patch under review we've yet to submit it.
https://patchwork.ozlabs.org/patch/670846/

Do you mind dropping this and instead let our patch (with the rest of
the fixes) go through?

Thanks, Ido.