Fix: e1000.c: In function 'e1000_read_mac_addr': e1000.c:1149:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
e1000.c:1149:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
Signed-off-by: Anatolij Gustschin agust@denx.de --- drivers/net/e1000.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/net/e1000.c b/drivers/net/e1000.c index 6b71bd9..54f6425 100644 --- a/drivers/net/e1000.c +++ b/drivers/net/e1000.c @@ -45,6 +45,7 @@ tested on both gig copper and gig fiber boards */
#include "e1000.h" +#include <asm/unaligned.h>
#define TOUT_LOOP 100000
@@ -1146,7 +1147,8 @@ e1000_read_mac_addr(struct eth_device *nic) nic->enetaddr[5] ^= 1;
#ifdef CONFIG_E1000_FALLBACK_MAC - if ( *(u32*)(nic->enetaddr) == 0 || *(u32*)(nic->enetaddr) == ~0 ) { + if (get_unaligned_be32(nic->enetaddr) == 0 || + get_unaligned_be32(nic->enetaddr) == ~0) { unsigned char fb_mac[NODE_ADDRESS_SIZE] = CONFIG_E1000_FALLBACK_MAC;
memcpy (nic->enetaddr, fb_mac, NODE_ADDRESS_SIZE);