From ec066de1a567169c4737a5933218c329cedf52bd Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Mon, 16 Sep 2019 09:51:33 +0000 Subject: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64 arm64 shares some code under arch/arm/xen, including mm.c. However ZONE_DMA is removed by commit ad67f5a6545("arm64: replace ZONE_DMA with ZONE_DMA32"). So add a check if CONFIG_ZONE_DMA32 is enabled use __GFP_DMA32. Signed-off-by: Peng Fan Acked-by: Stefano Stabellini Signed-off-by: Stefano Stabellini --- arch/arm/xen/mm.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index d33b77e9add3..018093fef80a 100644 --- a/arch/arm/xen/mm.c +++ b/arch/arm/xen/mm.c @@ -28,7 +28,10 @@ unsigned long xen_get_swiotlb_free_pages(unsigned int order) for_each_memblock(memory, reg) { if (reg->base < (phys_addr_t)0xffffffff) { - flags |= __GFP_DMA; + if (IS_ENABLED(CONFIG_ZONE_DMA32)) + flags |= __GFP_DMA32; + else + flags |= __GFP_DMA; break; } } -- 2.20.1