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

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.

Cc: stable@vger.kernel.org
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nithin Sujir 2013-12-19 17:44:11 -08:00 committed by David S. Miller
parent 1a29321ed0
commit 375679104a
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/broadcom/tg3.c
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@ -7622,7 +7622,7 @@ 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