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 a0a1f84..f3e3496 100644 (file)
--- 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);
        }