netdev - [net-next PATCH v3] octeon_ep: pack hardware structure

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231016092051.2306831-1-srasheed@marvell.com>
Date: Mon, 16 Oct 2023 02:20:51 -0700
From: Shinas Rasheed <srasheed@...vell.com>
To: <horms@...nel.org>, <linux-kernel@...r.kernel.org>
CC: <pabeni@...hat.com>, <davem@...emloft.net>, <edumazet@...gle.com>,
        <egallen@...hat.com>, <hgani@...vell.com>, <kuba@...nel.org>,
        <mschmidt@...hat.com>, <netdev@...r.kernel.org>,
        <srasheed@...vell.com>, <sedara@...vell.com>, <vburru@...vell.com>,
        <vimleshk@...vell.com>
Subject: [net-next PATCH v3] octeon_ep: pack hardware structure

Clean up structure defines related to hardware data to be
attributed 'packed' in the code, as padding is not allowed
by hardware.

Signed-off-by: Shinas Rasheed <srasheed@...vell.com>
---
V3:
  - Updated changelog to indicate this is a cleanup
V2: https://lore.kernel.org/all/20231010194026.2284786-1-srasheed@marvell.com/
  - Updated changelog to provide more information
V1: https://lore.kernel.org/all/20231006120225.2259533-1-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