From: Alex Elder <elder@linaro.org>
Date: Wed, 6 Aug 2014 23:09:05 +0000 (-0700)
Subject: printk: use a clever macro
X-Git-Tag: firefly_0821_release~176^2~3462^2~68
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e99aa461660a6413b11da887fb499e04a0f46803;p=firefly-linux-kernel-4.4.55.git

printk: use a clever macro

Use the IS_ENABLED() macro rather than #ifdef blocks to set certain
global values.

Signed-off-by: Alex Elder <elder@linaro.org>
Acked-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 4bae344c1ec3..ac86838227ed 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -454,11 +454,7 @@ static int log_store(int facility, int level,
 	return msg->text_len;
 }
 
-#ifdef CONFIG_SECURITY_DMESG_RESTRICT
-int dmesg_restrict = 1;
-#else
-int dmesg_restrict;
-#endif
+int dmesg_restrict = IS_ENABLED(CONFIG_SECURITY_DMESG_RESTRICT);
 
 static int syslog_action_restricted(int type)
 {
@@ -988,11 +984,7 @@ static inline void boot_delay_msec(int level)
 }
 #endif
 
-#if defined(CONFIG_PRINTK_TIME)
-static bool printk_time = 1;
-#else
-static bool printk_time;
-#endif
+static bool printk_time = IS_ENABLED(CONFIG_PRINTK_TIME);
 module_param_named(time, printk_time, bool, S_IRUGO | S_IWUSR);
 
 static size_t print_time(u64 ts, char *buf)