From 3af6878ecad229346fbc2c8f2663089aa6aef20d Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 1 Apr 2015 14:06:00 +0100 Subject: [PATCH] RxRPC: Fix the conversion to iov_iter This commit: commit af2b040e470b470bfc881981db3c796072853eae Author: Al Viro Date: Thu Nov 27 21:44:24 2014 -0500 Subject: rxrpc: switch rxrpc_send_data() to iov_iter primitives incorrectly changes a do-while loop into a while loop in rxrpc_send_data(). Unfortunately, at least one pass through the loop is required - even if there is no data - so that the packet the closes the send phase can be sent if MSG_MORE is not set. Signed-off-by: David Howells --- net/rxrpc/ar-output.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/rxrpc/ar-output.c b/net/rxrpc/ar-output.c index 8331c95e1522..833a33b5c180 100644 --- a/net/rxrpc/ar-output.c +++ b/net/rxrpc/ar-output.c @@ -548,7 +548,7 @@ static int rxrpc_send_data(struct kiocb *iocb, copied = 0; if (len > iov_iter_count(&msg->msg_iter)) len = iov_iter_count(&msg->msg_iter); - while (len) { + do { int copy; if (!skb) { @@ -689,7 +689,7 @@ static int rxrpc_send_data(struct kiocb *iocb, rxrpc_queue_packet(call, skb, !iov_iter_count(&msg->msg_iter) && !more); skb = NULL; } - } + } while (len > 0); success: ret = copied; -- 2.30.2