[Acx100-devel] [PATCH 19/19] add pr_infos to track down dma-api issue

[Jim C. <jim...@gm...>]

In kernel built with CONFIG_DMA_API_DEBUG=y, Ive seen warnings on
cleanup, start tracking them down.

Signed-off-by: Jim Cromie <jim...@gm...>
---
 merge.c | 6 +++++-
 pci.c   | 3 +++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/merge.c b/merge.c
index e4808de..2e19c44 100644
--- a/merge.c
+++ b/merge.c
@@ -209,9 +209,13 @@ static int acx_allocate(acx_device_t *adev, struct desc_info *di,
 {
 	void *ptr;
 
-	if (IS_PCI(adev))
+	if (IS_PCI(adev)) {
 		ptr = dma_alloc_coherent(adev->bus_dev,
 					di->size, &di->phy, GFP_KERNEL);
+
+		pr_info("bdev:%p size:%d phy:%p ptr:%p\n",
+			adev->bus_dev, di->size, (void*) di->phy, ptr);
+	}
 	else {
 		ptr = kmalloc(di->size, GFP_KERNEL);
 		/*
diff --git a/pci.c b/pci.c
index 43fab72..c766665 100644
--- a/pci.c
+++ b/pci.c
@@ -136,6 +136,9 @@ static void vlynq_remove(struct vlynq_device *vdev);
 void acxpci_free_coherent(struct pci_dev *hwdev, size_t size,
 			void *vaddr, dma_addr_t dma_handle)
 {
+	pr_info("hwdev:%p size:%d, vaddr:%p, dma_handle:%p\n",
+		hwdev, size, vaddr, (void*) dma_handle);
+
 	dma_free_coherent(hwdev == NULL	? NULL : &hwdev->dev,
 			size, vaddr, dma_handle);
 }
-- 
1.7.10.1.487.ga3935e6