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-rw-r--r--drivers/hv/ring_buffer.c1
-rw-r--r--drivers/net/hyperv/netvsc.c6
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c
index cd49cb17eb7f..308dbda700eb 100644
--- a/drivers/hv/ring_buffer.c
+++ b/drivers/hv/ring_buffer.c
@@ -383,6 +383,7 @@ int hv_ringbuffer_read(struct vmbus_channel *channel,
return ret;
}
+ init_cached_read_index(channel);
next_read_location = hv_get_next_read_location(inring_info);
next_read_location = hv_copyfrom_ringbuffer(inring_info, &desc,
sizeof(desc),
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 720b5fa9e625..c2ac39a940f7 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -1288,6 +1288,9 @@ void netvsc_channel_cb(void *context)
ndev = hv_get_drvdata(device);
buffer = get_per_channel_state(channel);
+ /* commit_rd_index() -> hv_signal_on_read() needs this. */
+ init_cached_read_index(channel);
+
do {
desc = get_next_pkt_raw(channel);
if (desc != NULL) {
@@ -1340,6 +1343,9 @@ void netvsc_channel_cb(void *context)
bufferlen = bytes_recvd;
}
+
+ init_cached_read_index(channel);
+
} while (1);
if (bufferlen > NETVSC_PACKET_SIZE)