From: Qi Zhang <qi.z.zhang@intel.com>
Date: Tue, 25 Sep 2018 02:34:30 +0000 (+0800)
Subject: net/i40e/base: read LLDP config area with correct endianness
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=b72611a2743c4198e3b031cf120e0bd432256c83;p=dpdk.git

net/i40e/base: read LLDP config area with correct endianness

The NVM is in little endian so when we read from it we need to do
the correct thing for the endianness of the machine.

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_dcb.c b/drivers/net/i40e/base/i40e_dcb.c
index 7cd444bb3c..a26f82b3a6 100644
--- a/drivers/net/i40e/base/i40e_dcb.c
+++ b/drivers/net/i40e/base/i40e_dcb.c
@@ -1262,18 +1262,20 @@ static enum i40e_status_code _i40e_read_lldp_cfg(struct i40e_hw *hw,
 {
 	u32 address, offset = (2 * word_offset);
 	enum i40e_status_code ret;
+	__le16 raw_mem;
 	u16 mem;
 
 	ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
 	if (ret != I40E_SUCCESS)
 		return ret;
 
-	ret = i40e_aq_read_nvm(hw, 0x0, module * 2, sizeof(mem), &mem, true,
-			       NULL);
+	ret = i40e_aq_read_nvm(hw, 0x0, module * 2, sizeof(raw_mem), &raw_mem,
+			       true, NULL);
 	i40e_release_nvm(hw);
 	if (ret != I40E_SUCCESS)
 		return ret;
 
+	mem = LE16_TO_CPU(raw_mem);
 	/* Check if this pointer needs to be read in word size or 4K sector
 	 * units.
 	 */
@@ -1286,12 +1288,13 @@ static enum i40e_status_code _i40e_read_lldp_cfg(struct i40e_hw *hw,
 	if (ret != I40E_SUCCESS)
 		goto err_lldp_cfg;
 
-	ret = i40e_aq_read_nvm(hw, module, offset, sizeof(mem), &mem, true,
-			       NULL);
+	ret = i40e_aq_read_nvm(hw, module, offset, sizeof(raw_mem), &raw_mem,
+			       true, NULL);
 	i40e_release_nvm(hw);
 	if (ret != I40E_SUCCESS)
 		return ret;
 
+	mem = LE16_TO_CPU(raw_mem);
 	offset = mem + word_offset;
 	offset *= 2;