tg3: Expand 4g_overflow_test workaround to skb fragments of any size.

commit 3756791 upstream. The current driver assumes that an skb fragment can only be upto jumbo size. Presumably this was a fast-path optimization. This assumption is no longer true as fragments can be upto 32k. v2: Remove unnecessary parantheses per Eric Dumazet. Signed-off-by: Nithin Nayak Sujir <[email protected]> Signed-off-by: Michael Chan <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
shr-distribution · Jan 9, 2014 · 43ed0ac · 43ed0ac
1 parent 36bbba0
commit 43ed0ac
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
@@ -7608,7 +7608,7 @@ static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
 {
 	u32 base = (u32) mapping & 0xffffffff;
 
-	return (base > 0xffffdcc0) && (base + len + 8 < base);
+	return base + len + 8 < base;
 }
 
 /* Test for TSO DMA buffers that cross into regions which are within MSS bytes