net: hsr: Add __packed to struct hsr_sup_tlv.

[ Upstream commit fbd825fcd7dd4c11d4c48c3d0adc248a4a0ce90b ]

Struct hsr_sup_tlv describes HW layout and therefore it needs a __packed
attribute to ensure the compiler does not add any padding.
Due to the size and __packed attribute of the structs that use
hsr_sup_tlv it has no functional impact.

Add __packed to struct hsr_sup_tlv.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h
index 16ae9fb09ccd2804579460151a67c627069a3a69..58a5a8b3891ffd3f5beedff105740dc1bbdcf826 100644 (file)
--- a/net/hsr/hsr_main.h
+++ b/net/hsr/hsr_main.h
@@ -83,7 +83,7 @@ struct hsr_vlan_ethhdr {
 struct hsr_sup_tlv {
        u8              HSR_TLV_type;
        u8              HSR_TLV_length;
-};
+} __packed;
 
 /* HSR/PRP Supervision Frame data types.
  * Field names as defined in the IEC:2010 standard for HSR.