add the 'goldfish' target, useful for experimenting with virtual phone hardware ...

[openwrt/svn-archive/archive.git] / target / linux / goldfish / patches-2.6.30 / 0109-Revert-printk-remove-unused-code-from-kernel-print.patch

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 (file)
index 0000000..26745a1
--- /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.