Merge branch 'linus' into x86/cpu

1 files changed, 15 insertions, 2 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 6a736dda3ee..201be425643 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -2190,7 +2190,14 @@ static int tg3_nvram_read_using_eeprom(struct tg3 *tp,
 	if (!(tmp & EEPROM_ADDR_COMPLETE))
 		return -EBUSY;
 
-	*val = tr32(GRC_EEPROM_DATA);
+	tmp = tr32(GRC_EEPROM_DATA);
+
+	/*
+	 * The data will always be opposite the native endian
+	 * format.  Perform a blind byteswap to compensate.
+	 */
+	*val = swab32(tmp);
+
 	return 0;
 }
 
@@ -10663,7 +10670,13 @@ static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp,
 
 		memcpy(&data, buf + i, 4);
 
-		tw32(GRC_EEPROM_DATA, be32_to_cpu(data));
+		/*
+		 * The SEEPROM interface expects the data to always be opposite
+		 * the native endian format.  We accomplish this by reversing
+		 * all the operations that would have been performed on the
+		 * data from a call to tg3_nvram_read_be32().
+		 */
+		tw32(GRC_EEPROM_DATA, swab32(be32_to_cpu(data)));
 
 		val = tr32(GRC_EEPROM_ADDR);
 		tw32(GRC_EEPROM_ADDR, val | EEPROM_ADDR_COMPLETE);