[PATCH 9/9] VC04_SERVICES: Add compat ioctl handler for "dump mem"

Michael Zoran mzoran at crowfest.net
Wed Jan 18 07:04:53 PST 2017


Add compat handler for "dump mem" ioctl.

Signed-off-by: Michael Zoran <mzoran at crowfest.net>
---
 .../staging/vc04_services/interface/vchiq_arm/vchiq_arm.c  | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index 84ede7d1285f..454b951fbda3 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -1577,6 +1577,19 @@ vchiq_ioctl_compat_internal(
 		}
 	} break;
 
+	case VCHIQ_IOC_DUMP_PHYS_MEM32: {
+		struct vchiq_dump_mem32 args32;
+
+		if (copy_from_user
+			 (&args32, (const void __user *)arg,
+			  sizeof(args32))) {
+			ret = -EFAULT;
+			break;
+		}
+
+		dump_phys_mem(compat_ptr(args32.virt_addr), args32.num_bytes);
+	} break;
+
 	default:
 		ret = -ENOTTY;
 		break;
@@ -1624,6 +1637,7 @@ vchiq_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
 	case VCHIQ_IOC_AWAIT_COMPLETION32:
 	case VCHIQ_IOC_DEQUEUE_MESSAGE32:
 	case VCHIQ_IOC_GET_CONFIG32:
+	case VCHIQ_IOC_DUMP_PHYS_MEM32:
 		return vchiq_ioctl_compat_internal(file, cmd, arg);
 	default:
 		return vchiq_ioctl(file, cmd, arg);
-- 
2.11.0




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