This new parameter controls whether fblog is automatically activated when
it is loaded. This defaults to "true".
We can now compile with CONFIG_VT=n and CONFIG_FBLOG=y and control fblog
with fblog.activate=0/1 on the kernel command line to enable/disable
debugging.
Signed-off-by: David Herrmann <dh.herrmann@xxxxxxxxxxxxxx>
---
drivers/video/console/fblog.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/video/console/fblog.c b/drivers/video/console/fblog.c
index 9d3b072..cabc550 100644
--- a/drivers/video/console/fblog.c
+++ b/drivers/video/console/fblog.c
@@ -94,6 +94,7 @@ struct fblog_fb {
static struct fblog_fb *fblog_fbs[FB_MAX];
static struct device *fblog_device;
static atomic_t fblog_active;
+static bool activate = 1;
static void fblog_buf_resize(struct fblog_buf *buf, size_t width,
size_t height)
@@ -653,6 +654,12 @@ static int __init fblog_init(void)
register_console(&fblog_con_driver);
+ if (activate) {
+ console_lock();
+ fblog_activate();
+ console_unlock();
+ }
+
return 0;
err_fb:
@@ -677,6 +684,9 @@ static void __exit fblog_exit(void)
put_device(fblog_device);
}
+module_param(activate, bool, S_IRUGO);
+MODULE_PARM_DESC(activate, "Activate fblog by default");
+
module_init(fblog_init);
module_exit(fblog_exit);
MODULE_LICENSE("GPL");
--
1.7.10.4
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