linux-kernel - [PATCH] sfc (gcc13): synchronize ef100_enqueue

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Message-Id: <20221031114440.10461-1-jirislaby@kernel.org>
Date:   Mon, 31 Oct 2022 12:44:40 +0100
From:   "Jiri Slaby (SUSE)" <jirislaby@...nel.org>
To:     ecree.xilinx@...il.com
Cc:     linux-kernel@...r.kernel.org,
        "Jiri Slaby (SUSE)" <jirislaby@...nel.org>,
        Martin Liska <mliska@...e.cz>,
        Martin Habets <habetsm.xilinx@...il.com>,
        "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
Subject: [PATCH] sfc (gcc13): synchronize ef100_enqueue_skb()'s return type

ef100_enqueue_skb() generates a valid warning with gcc-13:
  drivers/net/ethernet/sfc/ef100_tx.c:370:5: error: conflicting types for 'ef100_enqueue_skb' due to enum/integer mismatch; have 'int(struct efx_tx_queue *, struct sk_buff *)'
  drivers/net/ethernet/sfc/ef100_tx.h:25:13: note: previous declaration of 'ef100_enqueue_skb' with type 'netdev_tx_t(struct efx_tx_queue *, struct sk_buff *)'

I.e. the type of the ef100_enqueue_skb()'s return value in the declaration is
int, while the definition spells enum netdev_tx_t. Synchronize them to the
latter.

Cc: Martin Liska <mliska@...e.cz>
Cc: Edward Cree <ecree.xilinx@...il.com>
Cc: Martin Habets <habetsm.xilinx@...il.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Eric Dumazet <edumazet@...gle.com>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@...nel.org>
---
 drivers/net/ethernet/sfc/ef100_tx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/sfc/ef100_tx.c b/drivers/net/ethernet/sfc/ef100_tx.c
index 102ddc7e206a..29ffaf35559d 100644
--- a/drivers/net/ethernet/sfc/ef100_tx.c
+++ b/drivers/net/ethernet/sfc/ef100_tx.c
@@ -367,7 +367,8 @@ void ef100_ev_tx(struct efx_channel *channel, const efx_qword_t *p_event)
  * Returns 0 on success, error code otherwise. In case of an error this
  * function will free the SKB.
  */
-int ef100_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
+netdev_tx_t ef100_enqueue_skb(struct efx_tx_queue *tx_queue,
+			      struct sk_buff *skb)
 {
 	return __ef100_enqueue_skb(tx_queue, skb, NULL);
 }
-- 
2.38.1