| Message ID | 20171002130155.19325-1-matthieu.castet@parrot.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Oct 02, 2017 at 03:01:55PM +0200, Matthieu CASTET wrote: > 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(-) It looks fine to me. Will (cc'ed) should pick it up for 4.15. Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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;
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(-)