[PATCH v3 net-next 08/17] net: dsa: sja1105: Move sja1105_is_link_local to include/linux

[Vladimir Oltean <olteanv@gmail.com>]

This function will be reused from the .port_rxtstamp callback to see if
the received SKB can be timestamped by the switch.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
---
Changes in v3:

None.

Changes in v2:

Patch is new.

 include/linux/dsa/sja1105.h | 15 +++++++++++++++
 net/dsa/tag_sja1105.c       | 15 ---------------
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/include/linux/dsa/sja1105.h b/include/linux/dsa/sja1105.h
index e46e18c47d41..f3237afed35a 100644
--- a/include/linux/dsa/sja1105.h
+++ b/include/linux/dsa/sja1105.h
@@ -25,4 +25,19 @@ struct sja1105_port {
 	int mgmt_slot;
 };
 
+/* Similar to is_link_local_ether_addr(hdr->h_dest) but also covers PTP */
+static inline bool sja1105_is_link_local(const struct sk_buff *skb)
+{
+	const struct ethhdr *hdr = eth_hdr(skb);
+	u64 dmac = ether_addr_to_u64(hdr->h_dest);
+
+	if ((dmac & SJA1105_LINKLOCAL_FILTER_A_MASK) ==
+		    SJA1105_LINKLOCAL_FILTER_A)
+		return true;
+	if ((dmac & SJA1105_LINKLOCAL_FILTER_B_MASK) ==
+		    SJA1105_LINKLOCAL_FILTER_B)
+		return true;
+	return false;
+}
+
 #endif /* _NET_DSA_SJA1105_H */
diff --git a/net/dsa/tag_sja1105.c b/net/dsa/tag_sja1105.c
index b35cf5c2d01c..7a56a27a1fd2 100644
--- a/net/dsa/tag_sja1105.c
+++ b/net/dsa/tag_sja1105.c
@@ -7,21 +7,6 @@
 #include <linux/packing.h>
 #include "dsa_priv.h"
 
-/* Similar to is_link_local_ether_addr(hdr->h_dest) but also covers PTP */
-static inline bool sja1105_is_link_local(const struct sk_buff *skb)
-{
-	const struct ethhdr *hdr = eth_hdr(skb);
-	u64 dmac = ether_addr_to_u64(hdr->h_dest);
-
-	if ((dmac & SJA1105_LINKLOCAL_FILTER_A_MASK) ==
-		    SJA1105_LINKLOCAL_FILTER_A)
-		return true;
-	if ((dmac & SJA1105_LINKLOCAL_FILTER_B_MASK) ==
-		    SJA1105_LINKLOCAL_FILTER_B)
-		return true;
-	return false;
-}
-
 /* This is the first time the tagger sees the frame on RX.
  * Figure out if we can decode it, and if we can, annotate skb->cb with how we
  * plan to do that, so we don't need to check again in the rcv function.
-- 
2.17.1