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ftgmac100: Don't clear tx desc fields unnecessarily
Those are non-cachable stores, let's avoid those we don't need. Remove the helper, it's not particularly helpful and since it uses "priv" I can't move it to the header file. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -468,16 +468,6 @@ static bool ftgmac100_rx_packet(struct ftgmac100 *priv, int *processed)
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return true;
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}
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static void ftgmac100_txdes_reset(const struct ftgmac100 *priv,
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struct ftgmac100_txdes *txdes)
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{
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/* clear all except end of ring bit */
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txdes->txdes0 &= cpu_to_le32(priv->txdes0_edotr_mask);
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txdes->txdes1 = 0;
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txdes->txdes2 = 0;
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txdes->txdes3 = 0;
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}
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static bool ftgmac100_txdes_owned_by_dma(struct ftgmac100_txdes *txdes)
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{
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return txdes->txdes0 & cpu_to_le32(FTGMAC100_TXDES0_TXDMA_OWN);
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@ -577,7 +567,12 @@ static void ftgmac100_free_tx_packet(struct ftgmac100 *priv,
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dev_kfree_skb(skb);
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priv->tx_skbs[pointer] = NULL;
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ftgmac100_txdes_reset(priv, txdes);
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/* Clear txdes0 except end of ring bit, clear txdes1 as we
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* only "OR" into it, leave 2 and 3 alone as 2 is unused
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* and 3 will be overwritten entirely
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*/
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txdes->txdes0 &= cpu_to_le32(priv->txdes0_edotr_mask);
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txdes->txdes1 = 0;
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}
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static bool ftgmac100_tx_complete_packet(struct ftgmac100 *priv)
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