static void iwlagn_unmap_tfd(struct iwl_priv *priv, struct iwl_cmd_meta *meta,
struct iwl_tfd *tfd, enum dma_data_direction dma_dir)
{
int i;
int num_tbs;
/* Sanity check on number of chunks */
num_tbs = iwl_tfd_get_num_tbs(tfd);
if (num_tbs >= IWL_NUM_OF_TBS) {
IWL_ERR(priv, "Too many chunks: %i\n", num_tbs);
/* @todo issue fatal error, it is quite serious situation */
return;
}
/* Unmap tx_cmd */
if (num_tbs)
dma_unmap_single(priv->bus->dev,
dma_unmap_addr(meta, mapping),
dma_unmap_len(meta, len),
DMA_BIDIRECTIONAL);
/* Unmap chunks, if any. */
for (i = 1; i < num_tbs; i++)
dma_unmap_single(priv->bus->dev, iwl_tfd_tb_get_addr(tfd, i),
iwl_tfd_tb_get_len(tfd, i), dma_dir);
}
static void iwlagn_unmap_tfd(struct iwl_trans *trans, struct iwl_cmd_meta *meta,
struct iwl_tfd *tfd, enum dma_data_direction dma_dir)
{
int i;
int num_tbs;
num_tbs = iwl_tfd_get_num_tbs(tfd);
if (num_tbs >= IWL_NUM_OF_TBS) {
IWL_ERR(trans, "Too many chunks: %i\n", num_tbs);
return;
}
if (num_tbs)
dma_unmap_single(trans->dev,
dma_unmap_addr(meta, mapping),
dma_unmap_len(meta, len),
DMA_BIDIRECTIONAL);
for (i = 1; i < num_tbs; i++)
dma_unmap_single(trans->dev, iwl_tfd_tb_get_addr(tfd, i),
iwl_tfd_tb_get_len(tfd, i), dma_dir);
}