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From: kys@exchange.microsoft.com
To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com,
	vkuznets@redhat.com, jasowang@redhat.com,
	leann.ogasawara@canonical.com, marcelo.cerri@canonical.com,
	sthemmin@microsoft.com
Cc: Stephen Hemminger <stephen@networkplumber.org>,
	"K . Y . Srinivasan" <kys@microsoft.com>
Subject: [PATCH 2/3] vmbus: initialize reserved fields in messages
Date: Thu,  5 Oct 2017 17:35:05 -0700	[thread overview]
Message-ID: <20171006003506.24444-2-kys@exchange.microsoft.com> (raw)
In-Reply-To: <20171006003506.24444-1-kys@exchange.microsoft.com>

From: Stephen Hemminger <stephen@networkplumber.org>

Make sure and initialize reserved fields in messages to host,
rather than passing stack junk.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
---
 drivers/hv/channel.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index efd5db743319..9f48f454bde0 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -745,6 +745,7 @@ int vmbus_sendpacket_pagebuffer(struct vmbus_channel *channel,
 	desc.dataoffset8 = descsize >> 3; /* in 8-bytes granularity */
 	desc.length8 = (u16)(packetlen_aligned >> 3);
 	desc.transactionid = requestid;
+	desc.reserved = 0;
 	desc.rangecount = pagecount;
 
 	for (i = 0; i < pagecount; i++) {
@@ -788,6 +789,7 @@ int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,
 	desc->dataoffset8 = desc_size >> 3; /* in 8-bytes granularity */
 	desc->length8 = (u16)(packetlen_aligned >> 3);
 	desc->transactionid = requestid;
+	desc->reserved = 0;
 	desc->rangecount = 1;
 
 	bufferlist[0].iov_base = desc;
-- 
2.14.1

  reply	other threads:[~2017-10-06  0:36 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-06  0:33 [PATCH 0/3] Drivers: hv: vmbus: Miscellaneous enhancements and fixes kys
2017-10-06  0:35 ` [PATCH 1/3] Drivers: hv: vmbus: Expose per-channel interrupts and events counters kys
2017-10-06  0:35   ` kys [this message]
2017-10-06  0:35   ` [PATCH 3/3] Drivers: hv: vmbus: Make pannic reporting to be more useful kys
2017-10-12 13:39     ` Vitaly Kuznetsov
2017-10-12 15:06       ` KY Srinivasan
2017-10-20 13:27   ` [PATCH 1/3] Drivers: hv: vmbus: Expose per-channel interrupts and events counters Greg KH
2017-10-20 13:28 ` [PATCH 0/3] Drivers: hv: vmbus: Miscellaneous enhancements and fixes Greg KH
2017-10-20 21:35   ` KY Srinivasan

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