From 480f439c3db0d45d817d66caf3fa8e81a6fac01a Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Mon, 11 Nov 2013 14:23:08 +0100
Subject: [PATCH] kallsyms: Revert back to 128 max symbol length

This reverts commits
f3462aa (Kbuild: Handle longer symbols in kallsyms.c) and
eea0e9c (kbuild: Increase kallsyms max symbol length)
except for the added overflow check. The reason is a regression caused
by increasing the buffer:
http://marc.info/?l=linux-kernel&m=138387700415675.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Joe Mario <jmario@redhat.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 include/linux/kallsyms.h | 2 +-
 scripts/kallsyms.c       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 56488708da4b..6883e197acb9 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -9,7 +9,7 @@
 #include <linux/kernel.h>
 #include <linux/stddef.h>
 
-#define KSYM_NAME_LEN 255
+#define KSYM_NAME_LEN 128
 #define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \
 			 2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1)
 
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 48afa2020b00..518da86ce62a 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -27,7 +27,7 @@
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
 #endif
 
-#define KSYM_NAME_LEN		255
+#define KSYM_NAME_LEN		128
 
 struct sym_entry {
 	unsigned long long addr;
-- 
2.20.1