netdev - [PATCH net 1/4] mlxsw: spectrum_ptp: Fix compilation warnings

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Date:   Fri, 12 Aug 2022 17:32:00 +0200
From:   Petr Machata <petrm@...dia.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, <netdev@...r.kernel.org>
CC:     Ido Schimmel <idosch@...dia.com>,
        Danielle Ratson <danieller@...dia.com>,
        Amit Cohen <amcohen@...dia.com>,
        Richard Cochran <richardcochran@...il.com>,
        Petr Machata <petrm@...dia.com>, <mlxsw@...dia.com>,
        kernel test robot <lkp@...el.com>
Subject: [PATCH net 1/4] mlxsw: spectrum_ptp: Fix compilation warnings

From: Amit Cohen <amcohen@...dia.com>

In case that 'CONFIG_PTP_1588_CLOCK' is not enabled in the config file,
there are implementations for the functions
mlxsw_{sp,sp2}_ptp_txhdr_construct() as part of 'spectrum_ptp.h'. In this
case, they should be defined as 'static' as they are not supposed to be
used out of this file. Make the functions 'static', otherwise the following
warnings are returned:

"warning: no previous prototype for 'mlxsw_sp_ptp_txhdr_construct'"
"warning: no previous prototype for 'mlxsw_sp2_ptp_txhdr_construct'"

In addition, make the functions 'inline' for case that 'spectrum_ptp.h'
will be included anywhere else and the functions would probably not be
used, so compilation warnings about unused static will be returned.

Fixes: 24157bc69f45 ("mlxsw: Send PTP packets as data packets to overcome a limitation")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Amit Cohen <amcohen@...dia.com>
Reviewed-by: Petr Machata <petrm@...dia.com>
Signed-off-by: Petr Machata <petrm@...dia.com>
---
 .../net/ethernet/mellanox/mlxsw/spectrum_ptp.h | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.h
index 2d1628fdefc1..a8b88230959a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.h
@@ -171,10 +171,11 @@ static inline void mlxsw_sp1_get_stats(struct mlxsw_sp_port *mlxsw_sp_port,
 {
 }
 
-int mlxsw_sp_ptp_txhdr_construct(struct mlxsw_core *mlxsw_core,
-				 struct mlxsw_sp_port *mlxsw_sp_port,
-				 struct sk_buff *skb,
-				 const struct mlxsw_tx_info *tx_info)
+static inline int
+mlxsw_sp_ptp_txhdr_construct(struct mlxsw_core *mlxsw_core,
+			     struct mlxsw_sp_port *mlxsw_sp_port,
+			     struct sk_buff *skb,
+			     const struct mlxsw_tx_info *tx_info)
 {
 	return -EOPNOTSUPP;
 }
@@ -231,10 +232,11 @@ static inline int mlxsw_sp2_ptp_get_ts_info(struct mlxsw_sp *mlxsw_sp,
 	return mlxsw_sp_ptp_get_ts_info_noptp(info);
 }
 
-int mlxsw_sp2_ptp_txhdr_construct(struct mlxsw_core *mlxsw_core,
-				  struct mlxsw_sp_port *mlxsw_sp_port,
-				  struct sk_buff *skb,
-				  const struct mlxsw_tx_info *tx_info)
+static inline int
+mlxsw_sp2_ptp_txhdr_construct(struct mlxsw_core *mlxsw_core,
+			      struct mlxsw_sp_port *mlxsw_sp_port,
+			      struct sk_buff *skb,
+			      const struct mlxsw_tx_info *tx_info)
 {
 	return -EOPNOTSUPP;
 }
-- 
2.35.3