From: Andy Grover <agrover@redhat.com>
Date: Tue, 28 May 2013 23:55:20 +0000 (-0700)
Subject: target: Make virtual_lun0 a nullio device
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=db5d1c3ccc37d1f2066f5dc1f1c9c91a2f1f2956;p=linux-beck.git

target: Make virtual_lun0 a nullio device

Nobody should be expecting to read or write virtual_lun0.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---

diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index ed679c9420c5..8f4142fe5f19 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -1544,7 +1544,7 @@ int core_dev_setup_virtual_lun0(void)
 {
 	struct se_hba *hba;
 	struct se_device *dev;
-	char buf[16];
+	char buf[] = "rd_pages=8,rd_nullio=1";
 	int ret;
 
 	hba = core_alloc_hba("rd_mcp", 0, HBA_FLAGS_INTERNAL_USE);
@@ -1557,8 +1557,6 @@ int core_dev_setup_virtual_lun0(void)
 		goto out_free_hba;
 	}
 
-	memset(buf, 0, 16);
-	sprintf(buf, "rd_pages=8");
 	hba->transport->set_configfs_dev_params(dev, buf, sizeof(buf));
 
 	ret = target_configure_device(dev);