在 2022/3/4 2:04, Leon Romanovsky 写道:
On Wed, Mar 02, 2022 at 10:10:54PM +0800, Chengguang Xu wrote:
The type of wqe length is u32 so change variable payload
to type u32 to avoid overflow on large wqe length.
Signed-off-by: Chengguang Xu <cgxu519@xxxxxxxxxxxx>
---
drivers/infiniband/sw/rxe/rxe_req.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_req.c b/drivers/infiniband/sw/rxe/rxe_req.c
index 5eb89052dd66..e989ee3a2033 100644
--- a/drivers/infiniband/sw/rxe/rxe_req.c
+++ b/drivers/infiniband/sw/rxe/rxe_req.c
@@ -612,7 +612,7 @@ int rxe_requester(void *arg)
struct sk_buff *skb;
struct rxe_send_wqe *wqe;
enum rxe_hdr_mask mask;
- int payload;
+ u32 payload;
This change is not complete, functions in rxe_requester() that receive
payload as an input should be changed too.
IIUC, when calling those functions payload has been cut off to mtu size
and I think mtu will be much smaller than 2GB, so there is no rish of
overflow.
Thanks,
Chengguang
int mtu;
int opcode;
int ret;
--
2.27.0
