This patch fixes compilation sparse warnings like incorrect type in assignment
(different base types), cast to restricted __le64, symbol
'__UNIQUE_ID_author__COUNTER__' has multiple initializers etc.
This patch is based on slave-dma / for-linus branch.
(commit: 9f2fd0dfa594d857fbdaeda523ff7a46f16567f5 [26/28]
dmaengine: Add support for APM X-Gene SoC DMA engine driver)
Reported-by: kbuild test robot <fengguang...@intel.com>
Signed-off-by: Rameshwar Prasad Sahu <rs...@apm.com>
---
drivers/dma/xgene-dma.c | 43 +++++++++++++++++++++----------------------
1 file changed, 21 insertions(+), 22 deletions(-)
diff --git a/drivers/dma/xgene-dma.c b/drivers/dma/xgene-dma.c
index aa61935..a89287f 100755
--- a/drivers/dma/xgene-dma.c
+++ b/drivers/dma/xgene-dma.c
@@ -238,10 +238,10 @@
dev_err(chan->dev, "%s: " fmt, chan->name, ##arg)
struct xgene_dma_desc_hw {
- u64 m0;
- u64 m1;
- u64 m2;
- u64 m3;
+ __le64 m0;
+ __le64 m1;
+ __le64 m2;
+ __le64 m3;
};
enum xgene_dma_ring_cfgsize {
@@ -388,12 +388,12 @@ static bool is_pq_enabled(struct xgene_dma *pdma)
return !(val & XGENE_DMA_PQ_DISABLE_MASK);
}
-static void xgene_dma_cpu_to_le64(u64 *desc, int count)
+static void xgene_dma_cpu_to_le64(struct xgene_dma_desc_hw *desc)
{
- int i;
-
- for (i = 0; i < count; i++)
- desc[i] = cpu_to_le64(desc[i]);
+ desc->m0 = cpu_to_le64(((u64 *)desc)[0]);
+ desc->m1 = cpu_to_le64(((u64 *)desc)[1]);
+ desc->m2 = cpu_to_le64(((u64 *)desc)[2]);
+ desc->m3 = cpu_to_le64(((u64 *)desc)[3]);
}
static u16 xgene_dma_encode_len(u32 len)
@@ -499,9 +499,9 @@ static void xgene_dma_prep_cpy_desc(struct xgene_dma_chan
*chan,
skip_additional_src:
/* Hardware stores descriptor in little endian format */
- xgene_dma_cpu_to_le64(desc1, 4);
+ xgene_dma_cpu_to_le64(desc1);
if (desc2)
- xgene_dma_cpu_to_le64(desc2, 4);
+ xgene_dma_cpu_to_le64(desc2);
}
static void xgene_dma_prep_xor_desc(struct xgene_dma_chan *chan,
@@ -540,8 +540,8 @@ static void xgene_dma_prep_xor_desc(struct xgene_dma_chan
*chan,
}
/* Hardware stores descriptor in little endian format */
- xgene_dma_cpu_to_le64(desc1, 4);
- xgene_dma_cpu_to_le64(desc2, 4);
+ xgene_dma_cpu_to_le64(desc1);
+ xgene_dma_cpu_to_le64(desc2);
/* Update meta data */
*nbytes = len;
@@ -1895,9 +1895,9 @@ static int xgene_dma_get_resources(struct platform_device
*pdev,
pdma->csr_dma = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
- if (IS_ERR(pdma->csr_dma)) {
+ if (!pdma->csr_dma) {
dev_err(&pdev->dev, "Failed to ioremap csr region");
- return PTR_ERR(pdma->csr_dma);
+ return -ENOMEM;
}
/* Get DMA ring csr region */
@@ -1909,9 +1909,9 @@ static int xgene_dma_get_resources(struct platform_device
*pdev,
pdma->csr_ring = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
- if (IS_ERR(pdma->csr_ring)) {
+ if (!pdma->csr_ring) {
dev_err(&pdev->dev, "Failed to ioremap ring csr region");
- return PTR_ERR(pdma->csr_ring);
+ return -ENOMEM;
}
/* Get DMA ring cmd csr region */
@@ -1923,9 +1923,9 @@ static int xgene_dma_get_resources(struct platform_device
*pdev,
pdma->csr_ring_cmd = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
- if (IS_ERR(pdma->csr_ring_cmd)) {
+ if (!pdma->csr_ring_cmd) {
dev_err(&pdev->dev, "Failed to ioremap ring cmd csr region");
- return PTR_ERR(pdma->csr_ring_cmd);
+ return -ENOMEM;
}
/* Get efuse csr region */
@@ -1937,9 +1937,9 @@ static int xgene_dma_get_resources(struct platform_device
*pdev,
pdma->csr_efuse = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
- if (IS_ERR(pdma->csr_efuse)) {
+ if (!pdma->csr_efuse) {
dev_err(&pdev->dev, "Failed to ioremap efuse csr region");
- return PTR_ERR(pdma->csr_efuse);
+ return -ENOMEM;
}
/* Get DMA error interrupt */
@@ -2085,6 +2085,5 @@ module_platform_driver(xgene_dma_driver);
MODULE_DESCRIPTION("APM X-Gene SoC DMA driver");
MODULE_AUTHOR("Rameshwar Prasad Sahu <rs...@apm.com>");
-MODULE_AUTHOR("Loc Ho <l...@apm.com>");
MODULE_LICENSE("GPL");
MODULE_VERSION("1.0");
--
1.8.2.1
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