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dma: mv_xor: use mv_xor_chan pointers as arguments to self-test functions 

In preparation for the removal of the mv_xor_device structure, we
directly pass mv_xor_chan pointers to the self-test functions included
in the driver. These functions were anyway selecting the first (and
only channel) available in each DMA device, so the behaviour is
unchanged.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Thomas Petazzoni 2012-11-15 15:09:42 +01:00
Родитель 8c75979d7a
Коммит 275cc0c8bd
1 изменённых файлов: 6 добавлений и 11 удалений
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17
drivers/dma/mv_xor.c
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@ -898,7 +898,7 @@ static void mv_xor_issue_pending(struct dma_chan *chan)
*/ */
#define MV_XOR_TEST_SIZE 2000 #define MV_XOR_TEST_SIZE 2000
static int __devinit mv_xor_memcpy_self_test(struct mv_xor_device *device) static int __devinit mv_xor_memcpy_self_test(struct mv_xor_chan *mv_chan)
{ {
int i; int i;
void *src, *dest; void *src, *dest;
@ -922,10 +922,7 @@ static int __devinit mv_xor_memcpy_self_test(struct mv_xor_device *device)
for (i = 0; i < MV_XOR_TEST_SIZE; i++) for (i = 0; i < MV_XOR_TEST_SIZE; i++)
((u8 *) src)[i] = (u8)i; ((u8 *) src)[i] = (u8)i;
/* Start copy, using first DMA channel */ dma_chan = &mv_chan->dmachan;
dma_chan = container_of(device->dmadev.channels.next,
struct dma_chan,
device_node);
if (mv_xor_alloc_chan_resources(dma_chan) < 1) { if (mv_xor_alloc_chan_resources(dma_chan) < 1) {
err = -ENODEV; err = -ENODEV;
goto out; goto out;
@ -971,7 +968,7 @@ out:
#define MV_XOR_NUM_SRC_TEST 4 /* must be <= 15 */ #define MV_XOR_NUM_SRC_TEST 4 /* must be <= 15 */
static int __devinit static int __devinit
mv_xor_xor_self_test(struct mv_xor_device *device) mv_xor_xor_self_test(struct mv_xor_chan *mv_chan)
{ {
int i, src_idx; int i, src_idx;
struct page *dest; struct page *dest;
@ -1016,9 +1013,7 @@ mv_xor_xor_self_test(struct mv_xor_device *device)
memset(page_address(dest), 0, PAGE_SIZE); memset(page_address(dest), 0, PAGE_SIZE);
dma_chan = container_of(device->dmadev.channels.next, dma_chan = &mv_chan->dmachan;
struct dma_chan,
device_node);
if (mv_xor_alloc_chan_resources(dma_chan) < 1) { if (mv_xor_alloc_chan_resources(dma_chan) < 1) {
err = -ENODEV; err = -ENODEV;
goto out; goto out;
@ -1183,14 +1178,14 @@ mv_xor_channel_add(struct mv_xor_private *msp,
list_add_tail(&mv_chan->dmachan.device_node, &dma_dev->channels); list_add_tail(&mv_chan->dmachan.device_node, &dma_dev->channels);
if (dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask)) { if (dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask)) {
ret = mv_xor_memcpy_self_test(adev); ret = mv_xor_memcpy_self_test(mv_chan);
dev_dbg(&pdev->dev, "memcpy self test returned %d\n", ret); dev_dbg(&pdev->dev, "memcpy self test returned %d\n", ret);
if (ret) if (ret)
goto err_free_dma; goto err_free_dma;
} }
if (dma_has_cap(DMA_XOR, dma_dev->cap_mask)) { if (dma_has_cap(DMA_XOR, dma_dev->cap_mask)) {
ret = mv_xor_xor_self_test(adev); ret = mv_xor_xor_self_test(mv_chan);
dev_dbg(&pdev->dev, "xor self test returned %d\n", ret); dev_dbg(&pdev->dev, "xor self test returned %d\n", ret);
if (ret) if (ret)
goto err_free_dma; goto err_free_dma;