[PATCH 02/21] Drivers: hv: kvp: reset kvp_context

From: K. Y. Srinivasan
Date: Sat Apr 11 2015 - 19:54:12 EST

From: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>

We set kvp_context when we want to postpone receiving a packet from vmbus due
to the previous transaction being unfinished. We, however, never reset this
state, all consequent kvp_respond_to_host() calls will result in poll_channel()
calling hv_kvp_onchannelcallback(). This doesn't cause real issues as:
1) Host is supposed to serialize transactions as well
2) If no message is pending vmbus_recvpacket() will return 0 recvlen.
This is just a cleanup.

Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
Tested-by: Alex Ng <alexng@xxxxxxxxxxxxx>
Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
drivers/hv/hv_kvp.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index a414c83..caa467d 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -621,6 +621,7 @@ void hv_kvp_onchannelcallback(void *context)
kvp_transaction.kvp_context = context;
+ kvp_transaction.kvp_context = NULL;

vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 4, &recvlen,

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