Messages in this thread Patch in this message | | | From | Matthieu CASTET <> | Subject | [PATCH] [DEV] dma mapping : export caller to vmallocinfo | Date | Mon, 2 Oct 2017 15:01:55 +0200 |
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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
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