diff options
| author | Mark Einon <mark.einon@gmail.com> | 2012-11-16 10:47:40 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-21 13:57:28 -0800 |
| commit | 9967bd4842b39eaf632f77028fdd798775fd9686 (patch) | |
| tree | 0c4af1285710b565da9a49e187401aee23d58fa7 | |
| parent | 823bb2e8e1df99a28977f212975562b30f8dfd5e (diff) | |
staging: et131x: Remove incorrect comments regarding alignment
A previous change removed code that aligned memory returned from
dma_alloc_coherent() to a 4k boundary, which was not necessary.
Some comments regarding this alignment still exist, so remove them
as they no longer apply.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/et131x/et131x.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c index 9ccd9b7f2fbe..703a874996aa 100644 --- a/drivers/staging/et131x/et131x.c +++ b/drivers/staging/et131x/et131x.c @@ -2310,13 +2310,6 @@ static int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter) for (i = 0; i < (rx_ring->fbr[id]->num_entries / FBR_CHUNKS); i++) { dma_addr_t fbr_tmp_physaddr; - /* This code allocates an area of memory big enough for - * N free buffers + (buffer_size - 1) so that the - * buffers can be aligned on 4k boundaries. If each - * buffer were aligned to a buffer_size boundary, the - * effect would be to double the size of FBR0. By - * allocating N buffers at once, we reduce this overhead - */ rx_ring->fbr[id]->mem_virtaddrs[i] = dma_alloc_coherent( &adapter->pdev->dev, fbr_chunksize, &rx_ring->fbr[id]->mem_physaddrs[i], @@ -2901,9 +2894,6 @@ static int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter) return -ENOMEM; } - /* Allocate enough memory for the Tx descriptor ring, and allocate - * some extra so that the ring can be aligned on a 4k boundary. - */ desc_size = (sizeof(struct tx_desc) * NUM_DESC_PER_RING_TX); tx_ring->tx_desc_ring = (struct tx_desc *) dma_alloc_coherent(&adapter->pdev->dev, |