[Qemu-devel] [PATCH v7 03/28] bootindex: add del_boot_device_path function

[arei.gonglei]

From: Gonglei <address@hidden>

Introduce del_boot_device_path() to clean up fw_cfg content when
hot-unplugging a device that refers to a bootindex.

Signed-off-by: Gonglei <address@hidden>
Signed-off-by: Chenliang <address@hidden>
---
 bootdevice.c            | 21 +++++++++++++++++++++
 include/sysemu/sysemu.h |  1 +
 2 files changed, 22 insertions(+)

diff --git a/bootdevice.c b/bootdevice.c
index f5399df..89aca7f 100644
--- a/bootdevice.c
+++ b/bootdevice.c
@@ -51,6 +51,27 @@ void check_boot_index(int32_t bootindex, Error **errp)
     }
 }
 
+void del_boot_device_path(DeviceState *dev)
+{
+    FWBootEntry *i;
+
+    assert(dev != NULL);
+
+    /* remove all entries of the assigned device */
+    QTAILQ_FOREACH(i, &fw_boot_order, link) {
+        if (i->dev == NULL) {
+            continue;
+        }
+        if (i->dev == dev) {
+            QTAILQ_REMOVE(&fw_boot_order, i, link);
+            g_free(i->suffix);
+            g_free(i);
+
+            break;
+        }
+    }
+}
+
 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
                           const char *suffix)
 {
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 72463de..10cd573 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -214,6 +214,7 @@ char *get_boot_devices_list(size_t *size, bool 
ignore_suffixes);
 
 DeviceState *get_boot_device(uint32_t position);
 void check_boot_index(int32_t bootindex, Error **errp);
+void del_boot_device_path(DeviceState *dev);
 
 QemuOpts *qemu_get_machine_opts(void);
 
-- 
1.7.12.4