hyperv: Fix a compiler warning in netvsc_send()

Fixed: warning: cast from pointer to integer of different size

The Hyper-V hosts always use 64 bit request id. The guests can have 32 or 64
bit pointers which equal to the ulong type size. So we cast it to ulong type.
And, assigning 32bit integer to 64 bit variable works fine.

The VMBus returns the same id in the completion packet. But the value has no
effect on the host side.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index f5f0f09e4cc5e2160a9fc40c8fad83b5ab295287..2b0480416b31a2586afd0467ab539e1065caeb5b 100644 (file)
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -522,7 +522,7 @@ int netvsc_send(struct hv_device *device,
        sendMessage.msg.v1_msg.send_rndis_pkt.send_buf_section_size = 0;
 
        if (packet->completion.send.send_completion)
-               req_id = (u64)packet;
+               req_id = (ulong)packet;
        else
                req_id = 0;