[patch-rt 1/4] ftrace: fix swapped nibbles in tracer raw hex output

[Thomas Gleixner <tglx@linutronix.de>]

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backport from 2.6.28 mainline

Signed-off-by: Carsten Emde <Carsten.Emde@osadl.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/trace/trace.c |    7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

Index: linux-2.6.26/kernel/trace/trace.c
===================================================================
--- linux-2.6.26.orig/kernel/trace/trace.c
+++ linux-2.6.26/kernel/trace/trace.c
@@ -421,7 +421,6 @@ trace_seq_putmem_hex(struct trace_seq *s
 {
 	unsigned char hex[HEX_CHARS];
 	unsigned char *data = mem;
-	unsigned char byte;
 	int i, j;
 
 	BUG_ON(len >= HEX_CHARS);
@@ -431,10 +430,8 @@ trace_seq_putmem_hex(struct trace_seq *s
 #else
 	for (i = len-1, j = 0; i >= 0; i--) {
 #endif
-		byte = data[i];
-
-		hex[j++] = hex2asc[byte & 0x0f];
-		hex[j++] = hex2asc[byte >> 4];
+		hex[j++] = hex_asc_hi(data[i]);
+		hex[j++] = hex_asc_lo(data[i]);
 	}
 	hex[j++] = ' ';
 

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