From: Haiyang Zhang <haiyangz@microsoft.com>
Date: Fri, 26 Apr 2013 08:25:55 +0000 (+0000)
Subject: hyperv: Fix a compiler warning in netvsc_send()
X-Git-Tag: Ubuntu-5.2.0-15.16~15802^2~31
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=00ca8f0c9d7d9531ce0819f06c47a1bc43dba539;p=mirror_ubuntu-eoan-kernel.git

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 f5f0f09e4cc5..2b0480416b31 100644
--- 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;