From: Qi Zhang <qi.z.zhang@intel.com>
Date: Tue, 9 Jan 2018 20:30:20 +0000 (-0500)
Subject: net/i40e/base: fix unaligned data issue
X-Git-Tag: spdx-start~444
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=82c2ddbf1d1bf13109380e66699531ada0410f72;p=dpdk.git

net/i40e/base: fix unaligned data issue

This fix prevents errors or warnings while accessing unaligned 32-bit
data words on non-x86 platforms during getting link info from firmware.

Fixes: e8228f1a16b7 ("net/i40e/base: report supported link modes")
Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
---

diff --git a/drivers/net/i40e/base/i40e_common.c b/drivers/net/i40e/base/i40e_common.c
index a0a1f84b6a..f3e34965fa 100644
--- a/drivers/net/i40e/base/i40e_common.c
+++ b/drivers/net/i40e/base/i40e_common.c
@@ -2025,7 +2025,11 @@ enum i40e_status_code i40e_aq_get_link_info(struct i40e_hw *hw,
 
 	if (hw->aq.api_maj_ver == I40E_FW_API_VERSION_MAJOR &&
 	    hw->aq.api_min_ver >= 7) {
-		hw->phy.phy_types = LE32_TO_CPU(*(__le32 *)resp->link_type);
+		__le32 tmp;
+
+		i40e_memcpy(&tmp, resp->link_type, sizeof(tmp),
+			    I40E_NONDMA_TO_NONDMA);
+		hw->phy.phy_types = LE32_TO_CPU(tmp);
 		hw->phy.phy_types |= ((u64)resp->link_type_ext << 32);
 	}