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Commit bad5d26f authored by ZHAO Gang's avatar ZHAO Gang Committed by Greg Kroah-Hartman
Browse files

staging: et131x: reduce split lines in et131x_rx_dma_memory_alloc 



Signed-off-by: default avatarZHAO Gang <gamerh2o@gmail.com>
Acked-by: default avatarMark Einon <mark.einon@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent efc56817

drivers/staging/et131x/et131x.c

+23 −25
Original line number Diff line number Diff line
@@ -2127,6 +2127,7 @@ static int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter) 
	u32 pktstat_ringsize;

	u32 fbr_chunksize;

	struct rx_ring *rx_ring;

	struct fbr_lookup *fbr;



	/* Setup some convenience pointers */

	rx_ring = &adapter->rx_ring;
@@ -2170,20 +2171,18 @@ static int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter) 
		rx_ring->fbr[1]->num_entries = 128;

	}



	adapter->rx_ring.psr_num_entries =

				adapter->rx_ring.fbr[0]->num_entries +

				adapter->rx_ring.fbr[1]->num_entries;

	rx_ring->psr_num_entries = rx_ring->fbr[0]->num_entries +

				   rx_ring->fbr[1]->num_entries;



	for (id = 0; id < NUM_FBRS; id++) {

		fbr = rx_ring->fbr[id];

		/* Allocate an area of memory for Free Buffer Ring */

		bufsize =

		    (sizeof(struct fbr_desc) * rx_ring->fbr[id]->num_entries);

		rx_ring->fbr[id]->ring_virtaddr =

				dma_alloc_coherent(&adapter->pdev->dev,

		bufsize = sizeof(struct fbr_desc) * fbr->num_entries;

		fbr->ring_virtaddr = dma_alloc_coherent(&adapter->pdev->dev,

							bufsize,

					&rx_ring->fbr[id]->ring_physaddr,

							&fbr->ring_physaddr,

							GFP_KERNEL);

		if (!rx_ring->fbr[id]->ring_virtaddr) {

		if (!fbr->ring_virtaddr) {

			dev_err(&adapter->pdev->dev,

			   "Cannot alloc memory for Free Buffer Ring %d\n", id);

			return -ENOMEM;
@@ -2191,25 +2190,25 @@ static int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter) 
	}



	for (id = 0; id < NUM_FBRS; id++) {

		fbr_chunksize = (FBR_CHUNKS * rx_ring->fbr[id]->buffsize);

		fbr = rx_ring->fbr[id];

		fbr_chunksize = (FBR_CHUNKS * fbr->buffsize);



		for (i = 0;

		     i < (rx_ring->fbr[id]->num_entries / FBR_CHUNKS); i++) {

		for (i = 0; i < fbr->num_entries / FBR_CHUNKS; i++) {

			dma_addr_t fbr_tmp_physaddr;



			rx_ring->fbr[id]->mem_virtaddrs[i] = dma_alloc_coherent(

			fbr->mem_virtaddrs[i] = dma_alloc_coherent(

					&adapter->pdev->dev, fbr_chunksize,

					&rx_ring->fbr[id]->mem_physaddrs[i],

					&fbr->mem_physaddrs[i],

					GFP_KERNEL);



			if (!rx_ring->fbr[id]->mem_virtaddrs[i]) {

			if (!fbr->mem_virtaddrs[i]) {

				dev_err(&adapter->pdev->dev,

					"Could not alloc memory\n");

				return -ENOMEM;

			}



			/* See NOTE in "Save Physical Address" comment above */

			fbr_tmp_physaddr = rx_ring->fbr[id]->mem_physaddrs[i];

			fbr_tmp_physaddr = fbr->mem_physaddrs[i];



			for (j = 0; j < FBR_CHUNKS; j++) {

				u32 index = (i * FBR_CHUNKS) + j;
@@ -2217,26 +2216,25 @@ static int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter) 
				/* Save the Virtual address of this index for

				 * quick access later

				 */

				rx_ring->fbr[id]->virt[index] =

				  (u8 *) rx_ring->fbr[id]->mem_virtaddrs[i] +

				  (j * rx_ring->fbr[id]->buffsize);

				fbr->virt[index] = (u8 *)fbr->mem_virtaddrs[i] +

						   (j * fbr->buffsize);



				/* now store the physical address in the

				 * descriptor so the device can access it

				 */

				rx_ring->fbr[id]->bus_high[index] =

				fbr->bus_high[index] =

						upper_32_bits(fbr_tmp_physaddr);

				rx_ring->fbr[id]->bus_low[index] =

				fbr->bus_low[index] =

						lower_32_bits(fbr_tmp_physaddr);



				fbr_tmp_physaddr += rx_ring->fbr[id]->buffsize;

				fbr_tmp_physaddr += fbr->buffsize;

			}

		}

	}



	/* Allocate an area of memory for FIFO of Packet Status ring entries */

	pktstat_ringsize =

	    sizeof(struct pkt_stat_desc) * adapter->rx_ring.psr_num_entries;

		sizeof(struct pkt_stat_desc) * rx_ring->psr_num_entries;



	rx_ring->ps_ring_virtaddr = dma_alloc_coherent(&adapter->pdev->dev,

						  pktstat_ringsize,