linux-kernel - [PATCH 1/8] staging: r8188eu: ensure proper alignment for eth address buffers

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Message-Id: <20210823120106.9633-2-straube.linux@gmail.com>
Date:   Mon, 23 Aug 2021 14:00:59 +0200
From:   Michael Straube <straube.linux@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     Larry.Finger@...inger.net, phil@...lpotter.co.uk, martin@...ser.cx,
        fmdefrancesco@...il.com, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Michael Straube <straube.linux@...il.com>
Subject: [PATCH 1/8] staging: r8188eu: ensure proper alignment for eth address buffers

Add __aligned(2) to eth address buffers in structs rx_pkt_attrib and
pkt_attrib to ensure proper alignment for usage with functions from
<linux/etherdevice.h>

Signed-off-by: Michael Straube <straube.linux@...il.com>
---
 drivers/staging/r8188eu/include/rtw_recv.h | 10 +++++-----
 drivers/staging/r8188eu/include/rtw_xmit.h |  8 ++++----
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/r8188eu/include/rtw_recv.h b/drivers/staging/r8188eu/include/rtw_recv.h
index 81594e7aed51..1b41f8d7d079 100644
--- a/drivers/staging/r8188eu/include/rtw_recv.h
+++ b/drivers/staging/r8188eu/include/rtw_recv.h
@@ -109,11 +109,11 @@ struct rx_pkt_attrib {
 
 	u16 eth_type;
 
-	u8	dst[ETH_ALEN];
-	u8	src[ETH_ALEN];
-	u8	ta[ETH_ALEN];
-	u8	ra[ETH_ALEN];
-	u8	bssid[ETH_ALEN];
+	u8	dst[ETH_ALEN] __aligned(2);
+	u8	src[ETH_ALEN] __aligned(2);
+	u8	ta[ETH_ALEN] __aligned(2);
+	u8	ra[ETH_ALEN] __aligned(2);
+	u8	bssid[ETH_ALEN] __aligned(2);
 
 	u8 ack_policy;
 
diff --git a/drivers/staging/r8188eu/include/rtw_xmit.h b/drivers/staging/r8188eu/include/rtw_xmit.h
index e1418a3f7ed1..5f6e2402e5c4 100644
--- a/drivers/staging/r8188eu/include/rtw_xmit.h
+++ b/drivers/staging/r8188eu/include/rtw_xmit.h
@@ -122,10 +122,10 @@ struct pkt_attrib {
 	u8	ack_policy;
 	u8	mac_id;
 	u8	vcs_mode;	/* virtual carrier sense method */
-	u8	dst[ETH_ALEN];
-	u8	src[ETH_ALEN];
-	u8	ta[ETH_ALEN];
-	u8	ra[ETH_ALEN];
+	u8	dst[ETH_ALEN] __aligned(2);
+	u8	src[ETH_ALEN] __aligned(2);
+	u8	ta[ETH_ALEN] __aligned(2);
+	u8	ra[ETH_ALEN] __aligned(2);
 	u8	key_idx;
 	u8	qos_en;
 	u8	ht_en;
-- 
2.32.0