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-rw-r--r--src/drivers/net/natsemi.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/drivers/net/natsemi.h b/src/drivers/net/natsemi.h
index e3444712b..7e8d6f800 100644
--- a/src/drivers/net/natsemi.h
+++ b/src/drivers/net/natsemi.h
@@ -319,8 +319,8 @@ natsemi_address_ok ( struct natsemi_nic *natsemi, physaddr_t address ) {
if ( natsemi->flags & NATSEMI_64BIT )
return 1;
- /* A 32-bit card can access all address below 4GB */
- if ( ( address & 0xffffffffUL ) == 0 )
+ /* A 32-bit card can access all addresses below 4GB */
+ if ( ( address & ~0xffffffffULL ) == 0 )
return 1;
return 0;