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random: make it possible to enable debugging without rebuild

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The module parameter that turns debugging mode (which basically means
printing a few extra lines during runtime) is in '#if 0' block. Forcing
everyone who would like to see how entropy is behaving on his system to
rebuild seems to be a little bit too harsh.

If we were concerned about speed, we could potentially turn 'debug' into a
static key, but I don't think it's necessary.

Drop the '#if 0' block to allow using the 'debug' parameter without rebuilding.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Jiri Kosina 2012-10-15 23:42:55 +02:00 committed by Theodore Ts'o
parent ddffeb8c4d
commit be5b779ae9
1 changed files with 0 additions and 4 deletions
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4
drivers/char/random.c
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@ -399,7 +399,6 @@ static DECLARE_WAIT_QUEUE_HEAD(random_read_wait);
static DECLARE_WAIT_QUEUE_HEAD(random_write_wait); static DECLARE_WAIT_QUEUE_HEAD(random_write_wait);
static struct fasync_struct *fasync; static struct fasync_struct *fasync;
#if 0
static bool debug; static bool debug;
module_param(debug, bool, 0644); module_param(debug, bool, 0644);
#define DEBUG_ENT(fmt, arg...) do { \ #define DEBUG_ENT(fmt, arg...) do { \
@ -410,9 +409,6 @@ module_param(debug, bool, 0644);
blocking_pool.entropy_count,\ blocking_pool.entropy_count,\
nonblocking_pool.entropy_count,\ nonblocking_pool.entropy_count,\
## arg); } while (0) ## arg); } while (0)
#else
#define DEBUG_ENT(fmt, arg...) do {} while (0)
#endif
/********************************************************************** /**********************************************************************
* *