[PATCH net 6/6] net: dsa: ksz: fix wrong read cast to u64

[Gilles DOFFE]

'(u64)*value' casts a u32 to a u64. So depending on endianness,
LSB or MSB is lost.
The pointer needs to be cast to read the full u64:
'*((u64 *)value)'

Signed-off-by: Gilles DOFFE <gilles.do...@savoirfairelinux.com>
---
 drivers/net/dsa/microchip/ksz_common.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/microchip/ksz_common.h 
b/drivers/net/dsa/microchip/ksz_common.h
index 44e97c55c2da..492dcb2011f1 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -213,7 +213,7 @@ static inline int ksz_read64(struct ksz_device *dev, u32 
reg, u64 *val)
                /* Ick! ToDo: Add 64bit R/W to regmap on 32bit systems */
                value[0] = swab32(value[0]);
                value[1] = swab32(value[1]);
-               *val = swab64((u64)*value);
+               *val = swab64((((u64)value[1]) << 32) | value[0]);
        }
 
        return ret;
-- 
2.25.1