# \[PATCH net-next\] sfc: add missing prototypes for ef10 helper functions

- From: Chen Aibing \<hidden\>
- Date: 2026-11-12 06:56:01 
- List: netdev
- Page: https://ratatoskr.run/netdev/2026/11/17920108
- Thread: https://ratatoskr.run/netdev/2026/11/17920108/t.md

```text
From: chenaibing <redacted>

Fix the following W=1 warnings when building with -Wmissing-prototypes:

  drivers/net/ethernet/sfc/ef10.c: warning: no previous prototype for
  'efx_ef10_vadaptor_query' [-Wmissing-prototypes]
  drivers/net/ethernet/sfc/ef10.c: warning: no previous prototype for
  'efx_ef10_vadaptor_alloc' [-Wmissing-prototypes]
  drivers/net/ethernet/sfc/ef10.c: warning: no previous prototype for
  'efx_ef10_vadaptor_free' [-Wmissing-prototypes]
  drivers/net/ethernet/sfc/ef10.c: warning: no previous prototype for
  'efx_ef10_vport_add_mac' [-Wmissing-prototypes]
  drivers/net/ethernet/sfc/ef10.c: warning: no previous prototype for
  'efx_ef10_vport_del_mac' [-Wmissing-prototypes]
  drivers/net/ethernet/sfc/ef10.c: warning: no previous prototype for
  'efx_ef10_tx_tso_desc' [-Wmissing-prototypes]

These non-static functions are defined in ef10.c and called from
ef10_sriov.c, but have no declaration in any shared header.
Add the missing prototypes to efx.h.

Signed-off-by: chenaibing <redacted>
---
 drivers/net/ethernet/sfc/efx.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/net/ethernet/sfc/efx.h b/drivers/net/ethernet/sfc/efx.h
index 1234567890ab..abcdef123456 100644
--- a/drivers/net/ethernet/sfc/efx.h
+++ b/drivers/net/ethernet/sfc/efx.h
@@ -209,6 +209,18 @@ int efx_xdp_tx_buffers(struct efx_nic *efx, int n, struct xdp_frame **xdpfs,
 		       bool flush);
 
+/* ef10.c: exported helpers also used by ef10_sriov.c */
+int efx_ef10_vadaptor_query(struct efx_nic *efx, unsigned int port_id,
+			    u32 *port_flags, u32 *vadaptor_flags,
+			    unsigned int *vlan_tags);
+int efx_ef10_vadaptor_alloc(struct efx_nic *efx, unsigned int port_id);
+int efx_ef10_vadaptor_free(struct efx_nic *efx, unsigned int port_id);
+int efx_ef10_vport_add_mac(struct efx_nic *efx,
+			   unsigned int port_id, const u8 *mac);
+int efx_ef10_vport_del_mac(struct efx_nic *efx,
+			   unsigned int port_id, const u8 *mac);
+int efx_ef10_tx_tso_desc(struct efx_tx_queue *tx_queue, struct sk_buff *skb,
+			 bool *data_mapped);
+
 #endif /* EFX_EFX_H */
-- 
2.39.0
```