[net-next PATCH] octeon_ep: pack hardware structures

From: Shinas Rasheed <srasheed@marvell.com>
To: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<hgani@marvell.com>
Cc: <egallen@redhat.com>, <mschmidt@redhat.com>,
	Shinas Rasheed <srasheed@marvell.com>,
	Veerasenareddy Burru <vburru@marvell.com>,
	"Sathesh Edara" <sedara@marvell.com>,
	"David S. Miller" <davem@davemloft.net>,
	"Eric Dumazet" <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Subject: [net-next PATCH] octeon_ep: pack hardware structures
Date: Fri, 6 Oct 2023 05:02:25 -0700	[thread overview]
Message-ID: <20231006120225.2259533-1-srasheed@marvell.com> (raw)

Add packed attribute to hardware structures.

Signed-off-by: Shinas Rasheed <srasheed@marvell.com>
---
 drivers/net/ethernet/marvell/octeon_ep/octep_rx.h | 6 +++---
 drivers/net/ethernet/marvell/octeon_ep/octep_tx.h | 8 ++++----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_rx.h b/drivers/net/ethernet/marvell/octeon_ep/octep_rx.h
index 782a24f27f3e..ca42ddb77491 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_rx.h
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_rx.h
@@ -19,7 +19,7 @@
 struct octep_oq_desc_hw {
 	dma_addr_t buffer_ptr;
 	u64 info_ptr;
-};
+} __packed;
 
 #define OCTEP_OQ_DESC_SIZE    (sizeof(struct octep_oq_desc_hw))
 
@@ -38,7 +38,7 @@ struct octep_oq_resp_hw_ext {
 
 	/* checksum verified. */
 	u64 csum_verified:2;
-};
+} __packed;
 
 #define  OCTEP_OQ_RESP_HW_EXT_SIZE   (sizeof(struct octep_oq_resp_hw_ext))
 
@@ -49,7 +49,7 @@ struct octep_oq_resp_hw_ext {
 struct octep_oq_resp_hw {
 	/* The Length of the packet. */
 	__be64 length;
-};
+} __packed;
 
 #define OCTEP_OQ_RESP_HW_SIZE   (sizeof(struct octep_oq_resp_hw))
 
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_tx.h b/drivers/net/ethernet/marvell/octeon_ep/octep_tx.h
index 21e75ff9f5e7..74189e5a7d33 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_tx.h
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_tx.h
@@ -35,7 +35,7 @@
 struct octep_tx_sglist_desc {
 	u16 len[4];
 	dma_addr_t dma_ptr[4];
-};
+} __packed;
 
 /* Each Scatter/Gather entry sent to hardwar hold four pointers.
  * So, number of entries required is (MAX_SKB_FRAGS + 1)/4, where '+1'
@@ -238,7 +238,7 @@ struct octep_instr_hdr {
 
 	/* Reserved3 */
 	u64 reserved3:1;
-};
+} __packed;
 
 /* Hardware Tx completion response header */
 struct octep_instr_resp_hdr {
@@ -262,7 +262,7 @@ struct octep_instr_resp_hdr {
 
 	/* Opcode for the return packet  */
 	u64 opcode:16;
-};
+} __packed;
 
 /* 64-byte Tx instruction format.
  * Format of instruction for a 64-byte mode input queue.
@@ -292,7 +292,7 @@ struct octep_tx_desc_hw {
 
 	/* Additional headers available in a 64-byte instruction. */
 	u64 exhdr[4];
-};
+} __packed;
 
 #define OCTEP_IQ_DESC_SIZE (sizeof(struct octep_tx_desc_hw))
 #endif /* _OCTEP_TX_H_ */
-- 
2.25.1

