The dma mask var was defined as dma_addr_t but should be u64. This showed as a sparse warning when building for 32 bit. Fix it by changing type to u64 and drop the cast. Signed-off-by: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx> --- drivers/staging/ccree/cc_driver.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/ccree/cc_driver.c b/drivers/staging/ccree/cc_driver.c index b49bc25..6682d9d 100644 --- a/drivers/staging/ccree/cc_driver.c +++ b/drivers/staging/ccree/cc_driver.c @@ -156,7 +156,7 @@ static int init_cc_resources(struct platform_device *plat_dev) struct device *dev = &plat_dev->dev; struct device_node *np = dev->of_node; u32 signature_val; - dma_addr_t dma_mask; + u64 dma_mask; int rc = 0; new_drvdata = devm_kzalloc(dev, sizeof(*new_drvdata), GFP_KERNEL); @@ -205,7 +205,7 @@ static int init_cc_resources(struct platform_device *plat_dev) if (!plat_dev->dev.dma_mask) plat_dev->dev.dma_mask = &plat_dev->dev.coherent_dma_mask; - dma_mask = (dma_addr_t)(DMA_BIT_MASK(DMA_BIT_MASK_LEN)); + dma_mask = DMA_BIT_MASK(DMA_BIT_MASK_LEN); while (dma_mask > 0x7fffffffUL) { if (dma_supported(&plat_dev->dev, dma_mask)) { rc = dma_set_coherent_mask(&plat_dev->dev, dma_mask); -- 2.7.4