1 files changed, 58 insertions, 0 deletions
diff --git a/target/linux/goldfish/patches-2.6.30/0109-Revert-printk-remove-unused-code-from-kernel-print.patch b/target/linux/goldfish/patches-2.6.30/0109-Revert-printk-remove-unused-code-from-kernel-print.patch
new file mode 100644
index 0000000000..26745a1168
--- /dev/null
+++ b/target/linux/goldfish/patches-2.6.30/0109-Revert-printk-remove-unused-code-from-kernel-print.patch
@@ -0,0 +1,58 @@
+From fca2519ebf25db61da132932eb3fffeaa1974f43 Mon Sep 17 00:00:00 2001
+From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com>
+Date: Thu, 15 Jan 2009 19:07:27 -0800
+Subject: [PATCH 109/134] Revert "printk: remove unused code from kernel/printk.c"
+
+This reverts commit acff181d3574244e651913df77332e897b88bff4.
+---
+ kernel/printk.c |   39 +++++++++++++++++++++++++++++++++++++++
+ 1 files changed, 39 insertions(+), 0 deletions(-)
+
+--- a/kernel/printk.c
++++ b/kernel/printk.c
+@@ -255,6 +255,45 @@ static inline void boot_delay_msec(void)
+ #endif
+ 
+ /*
++ * Return the number of unread characters in the log buffer.
++ */
++static int log_buf_get_len(void)
++{
++	return logged_chars;
++}
++
++/*
++ * Copy a range of characters from the log buffer.
++ */
++int log_buf_copy(char *dest, int idx, int len)
++{
++	int ret, max;
++	bool took_lock = false;
++
++	if (!oops_in_progress) {
++		spin_lock_irq(&logbuf_lock);
++		took_lock = true;
++	}
++
++	max = log_buf_get_len();
++	if (idx < 0 || idx >= max) {
++		ret = -1;
++	} else {
++		if (len > max)
++			len = max;
++		ret = len;
++		idx += (log_end - max);
++		while (len-- > 0)
++			dest[len] = LOG_BUF(idx + len);
++	}
++
++	if (took_lock)
++		spin_unlock_irq(&logbuf_lock);
++
++	return ret;
++}
++
++/*
+  * Commands to do_syslog:
+  *
+  * 	0 -- Close the log.  Currently a NOP.