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authorSteven Rostedt <rostedt@goodmis.org>2013-07-03 15:05:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:07:45 -0700
commitff1c8fac88ab8e7dac65236b277908c7c5c7ab09 (patch)
tree83d3dc572683e7151e4f2ec9ecea5ff8ad5e007f /init/main.c
parent351b2a1fe2d06f44b4c06d377744b2ac408b7407 (diff)
downloadlwn-ff1c8fac88ab8e7dac65236b277908c7c5c7ab09.tar.gz
lwn-ff1c8fac88ab8e7dac65236b277908c7c5c7ab09.zip
init: remove permanent string buffer from do_one_initcall()
do_one_initcall() uses a 64 byte string buffer to save a message. This buffer is declared static and is only used at boot up and when a module is loaded. As 64 bytes is very small, and this function has very limited scope, there's no reason to waste permanent memory with this string and not just simply put it on the stack. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init/main.c')
-rw-r--r--init/main.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/init/main.c b/init/main.c
index ec549581d732..f2366533c922 100644
--- a/init/main.c
+++ b/init/main.c
@@ -655,8 +655,6 @@ static void __init do_ctors(void)
bool initcall_debug;
core_param(initcall_debug, initcall_debug, bool, 0644);
-static char msgbuf[64];
-
static int __init_or_module do_one_initcall_debug(initcall_t fn)
{
ktime_t calltime, delta, rettime;
@@ -679,6 +677,7 @@ int __init_or_module do_one_initcall(initcall_t fn)
{
int count = preempt_count();
int ret;
+ char msgbuf[64];
if (initcall_debug)
ret = do_one_initcall_debug(fn);