For example on arm64 board, this add info to "user" entries in vmallocinfo
Before :
[...]
0xffffff8008997000 0xffffff80089d8000 266240 user
[...]
Afer :
[...]
0xffffff8008997000 0xffffff80089d8000 266240 atomic_pool_init+0x0/0x1d8 user [...]
This help to debug mapping issues, and is consistent with others entries (ioremap, vmalloc, ...) that already provide caller.
Signed-off-by: Matthieu CASTET <
matthieu.castet@parrot.com>
---
arch/arm64/mm/dma-mapping.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 614af886b7ef..115b32639a3c 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -166,7 +166,7 @@ static void *__dma_alloc(struct device *dev, size_t size,
/* create a coherent mapping */
page = virt_to_page(ptr);
coherent_ptr = dma_common_contiguous_remap(page, size, VM_USERMAP,
- prot, NULL);
+ prot, __builtin_return_address(0));
if (!coherent_ptr)
goto no_map;
--
2.14.2
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)