From: John Stultz <john.stultz@linaro.org>
Date: Tue, 21 May 2013 17:00:44 +0000 (-0700)
Subject: Revert "ARM: Make low-level printk work"
X-Git-Tag: firefly_0821_release~3680^2~4^2~41^2~4
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9f0c3ccfa97d84ee50a248574980b43d8a47e118;p=firefly-linux-kernel-4.4.55.git

Revert "ARM: Make low-level printk work"

This reverts commit 63d454ab530bb3ab5412aabd6be6ee8cd340888e.

Per Andy's request,

Andy's rational:
    "I don't think that makes any sense any more and should be removed,
    unless there's some case on Android side that really needs it.  Vanilla
    has better DEBUG_LL support now since 2005 when that patch was
    introduced and the Android kernels will inherit it.  I've reverted it in
    my tree since we commonly need DEBUG_LL on (but we don't need printascii
    garbling all our logging as if there was an echo in there).

    ...[It] basically forces all printk output down printascii() which is
    not what we want.

        earlyprintk=1 earlycon=ttyO2,115200n8

    On your commandline will get you going [without this]"

Change-Id: I1da455354b4a8ff3bc9c5f66f5a174b13e179ae6
Signed-off-by: John Stultz <john.stultz@linaro.org>
---

diff --git a/kernel/printk.c b/kernel/printk.c
index 9cb84eb1a9de..8212c1aef125 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -51,10 +51,6 @@
 #define CREATE_TRACE_POINTS
 #include <trace/events/printk.h>
 
-#ifdef        CONFIG_DEBUG_LL
-extern void printascii(char *);
-#endif
-
 /* printk's without a loglevel use this.. */
 #define DEFAULT_MESSAGE_LOGLEVEL CONFIG_DEFAULT_MESSAGE_LOGLEVEL
 
@@ -1556,10 +1552,6 @@ asmlinkage int vprintk_emit(int facility, int level,
 	 */
 	text_len = vscnprintf(text, sizeof(textbuf), fmt, args);
 
-#ifdef	CONFIG_DEBUG_LL
-	printascii(text);
-#endif
-
 	/* mark and strip a trailing newline */
 	if (text_len && text[text_len-1] == '\n') {
 		text_len--;