Thread (4 messages) flat view 4 messages, 4 authors, 2012-01-12
STALE5342d

[patch] svcrdma: endian bug in send_write_chunks()

From: Dan Carpenter <hidden>
Date: 2012-01-12 06:47:22
Also in: kernel-janitors, linux-nfs
Subsystem: kernel nfsd, sunrpc, and lockd servers, networking [general], nfs, sunrpc, and lockd clients, the rest · Maintainers: Chuck Lever, Jeff Layton, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Trond Myklebust, Anna Schumaker, Linus Torvalds

Sparse complains because arg_ch->rs_length is declared as network
endian but we're treating it as CPU endian.

Signed-off-by: Dan Carpenter <redacted>
diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
index 249a835..30fda86 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
@@ -409,7 +409,7 @@ static int send_write_chunks(struct svcxprt_rdma *xprt,
 		u64 rs_offset;
 
 		arg_ch = &arg_ary->wc_array[chunk_no].wc_target;
-		write_len = min(xfer_len, arg_ch->rs_length);
+		write_len = min(xfer_len, ntohl(arg_ch->rs_length));
 
 		/* Prepare the response chunk given the length actually
 		 * written */
@@ -481,7 +481,7 @@ static int send_reply_chunks(struct svcxprt_rdma *xprt,
 	     chunk_no++) {
 		u64 rs_offset;
 		ch = &arg_ary->wc_array[chunk_no].wc_target;
-		write_len = min(xfer_len, ch->rs_length);
+		write_len = min(xfer_len, ntohl(ch->rs_length));
 
 		/* Prepare the reply chunk given the length actually
 		 * written */
--
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