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net: calxedaxgmac: read correct field in xgmac_desc_get_buf_len

xgmac_desc_get_buf_len appears to have a copy/paste error. flags is the
wrong field to read. We should be reading buf_size field. cpu_to_le32
should also be le32_to_cpu. This never really mattered as this function
is only used for DMA mapping calls which happen to be nops with coherent
DMA.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rob Herring 2013-08-30 16:49:20 -05:00 committed by David S. Miller
parent 50ae3c2276
commit ef07387faf

View File

@ -421,7 +421,7 @@ static inline void desc_set_buf_len(struct xgmac_dma_desc *p, u32 buf_sz)
static inline int desc_get_buf_len(struct xgmac_dma_desc *p)
{
u32 len = cpu_to_le32(p->flags);
u32 len = le32_to_cpu(p->buf_size);
return (len & DESC_BUFFER1_SZ_MASK) +
((len & DESC_BUFFER2_SZ_MASK) >> DESC_BUFFER2_SZ_OFFSET);
}