X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=kernel%2Fresource.c;h=e633106b12f6ffe7f8da4fa48c6105582052e411;hb=46483d10e5123d78cf9abf37577aa8e75f18b8a4;hp=4337063663efe39f8de666d16c591c84f66db0f7;hpb=7a895f53cda9d9362c30144e42c124a1ae996b9e;p=firefly-linux-kernel-4.4.55.git

diff --git a/kernel/resource.c b/kernel/resource.c
index 4337063663ef..e633106b12f6 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -853,6 +853,15 @@ int iomem_map_sanity_check(resource_size_t addr, unsigned long size)
 		if (PFN_DOWN(p->start) <= PFN_DOWN(addr) &&
 		    PFN_DOWN(p->end) >= PFN_DOWN(addr + size - 1))
 			continue;
+		/*
+		 * if a resource is "BUSY", it's not a hardware resource
+		 * but a driver mapping of such a resource; we don't want
+		 * to warn for those; some drivers legitimately map only
+		 * partial hardware resources. (example: vesafb)
+		 */
+		if (p->flags & IORESOURCE_BUSY)
+			continue;
+
 		printk(KERN_WARNING "resource map sanity check conflict: "
 		       "0x%llx 0x%llx 0x%llx 0x%llx %s\n",
 		       (unsigned long long)addr,