From 359be67862c5e013fcf7c04e352d8824105a76ed Mon Sep 17 00:00:00 2001 From: Matthieu CASTET Date: Mon, 2 Oct 2017 15:01:55 +0200 Subject: dma mapping : export caller to vmallocinfo 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. Acked-by: Catalin Marinas Signed-off-by: Matthieu CASTET Signed-off-by: Will Deacon --- 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 5f62090bda24..b45c5bcaeccb 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; -- cgit