Thread (10 messages) 10 messages, 3 authors, 2021-08-28

[PATCH v4 2/5] staging: r8188eu: cast to restricted __be32

From: Aakash Hemadri <hidden>
Date: 2021-08-23 17:00:52
Also in: lkml
Subsystem: staging subsystem, the rest · Maintainers: Greg Kroah-Hartman, Linus Torvalds

Fix sparse warning:
rtw_br_ext.c:836:54: warning: cast to restricted __be32
dhpch->cookie is be32, change it's type.

Suggested-by: Larry Finger <redacted>
Signed-off-by: Aakash Hemadri <redacted>
---

I had incorrectly removed bytsewapping without considering the hardware
runs in big endian rather change type to __be32 as sugessted by Larry.

 drivers/staging/r8188eu/core/rtw_br_ext.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/r8188eu/core/rtw_br_ext.c b/drivers/staging/r8188eu/core/rtw_br_ext.c
index f6d1f6029ec3..f65d94bfa286 100644
--- a/drivers/staging/r8188eu/core/rtw_br_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_br_ext.c
@@ -649,7 +649,7 @@ struct dhcpMessage {
 	u_int8_t chaddr[16];
 	u_int8_t sname[64];
 	u_int8_t file[128];
-	u_int32_t cookie;
+	__be32 cookie;
 	u_int8_t options[308]; /* 312 - cookie */
 };
 
@@ -671,7 +671,7 @@ void dhcp_flag_bcast(struct adapter *priv, struct sk_buff *skb)
 				    (udph->dest == __constant_htons(SERVER_PORT))) { /*  DHCP request */
 					struct dhcpMessage *dhcph =
 						(struct dhcpMessage *)((size_t)udph + sizeof(struct udphdr));
-					u32 cookie = be32_to_cpu((__be32)dhcph->cookie);
+					u32 cookie = be32_to_cpu(dhcph->cookie);
 
 					if (cookie == DHCP_MAGIC) { /*  match magic word */
 						if (!(dhcph->flags & htons(BROADCAST_FLAG))) {
-- 
2.32.0
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