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From: Matt Mackall <mpm@selenic.com>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 17/22] /dev/random: minor shrinkage
Date: Thu, 25 Mar 2004 17:57:45 -0600	[thread overview]
Message-ID: <18.524465763@selenic.com> (raw)
In-Reply-To: <17.524465763@selenic.com>


/dev/random  minor shrinkage

#ifdef out unused pool sizes (more than makes up for size of
 nonblocking pool)

mark some functions init


 tiny-mpm/drivers/char/random.c |   26 ++++++++++++--------------
 1 files changed, 12 insertions(+), 14 deletions(-)

diff -puN drivers/char/random.c~shrink-random drivers/char/random.c
--- tiny/drivers/char/random.c~shrink-random	2004-03-20 13:38:37.000000000 -0600
+++ tiny-mpm/drivers/char/random.c	2004-03-20 13:38:37.000000000 -0600
@@ -297,41 +297,38 @@ static struct poolinfo {
 	int	poolwords;
 	int	tap1, tap2, tap3, tap4, tap5;
 } poolinfo_table[] = {
+	/* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */
+	{ 128,	103,	76,	51,	25,	1 },
+	/* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */
+	{ 32,	26,	20,	14,	7,	1 },
+#if 0
 	/* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1  -- 115 */
 	{ 2048,	1638,	1231,	819,	411,	1 },
 
 	/* x^1024 + x^817 + x^615 + x^412 + x^204 + x + 1 -- 290 */
 	{ 1024,	817,	615,	412,	204,	1 },
-#if 0				/* Alternate polynomial */
+
 	/* x^1024 + x^819 + x^616 + x^410 + x^207 + x^2 + 1 -- 115 */
 	{ 1024,	819,	616,	410,	207,	2 },
-#endif
 
 	/* x^512 + x^411 + x^308 + x^208 + x^104 + x + 1 -- 225 */
 	{ 512,	411,	308,	208,	104,	1 },
-#if 0				/* Alternates */
+
 	/* x^512 + x^409 + x^307 + x^206 + x^102 + x^2 + 1 -- 95 */
 	{ 512,	409,	307,	206,	102,	2 },
 	/* x^512 + x^409 + x^309 + x^205 + x^103 + x^2 + 1 -- 95 */
 	{ 512,	409,	309,	205,	103,	2 },
-#endif
 
 	/* x^256 + x^205 + x^155 + x^101 + x^52 + x + 1 -- 125 */
 	{ 256,	205,	155,	101,	52,	1 },
 
-	/* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */
-	{ 128,	103,	76,	51,	25,	1 },
-#if 0	/* Alternate polynomial */
 	/* x^128 + x^103 + x^78 + x^51 + x^27 + x^2 + 1 -- 70 */
 	{ 128,	103,	78,	51,	27,	2 },
-#endif
 
 	/* x^64 + x^52 + x^39 + x^26 + x^14 + x + 1 -- 15 */
 	{ 64,	52,	39,	26,	14,	1 },
 
-	/* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */
-	{ 32,	26,	20,	14,	7,	1 },
-
+#endif
 	{ 0,	0,	0,	0,	0,	0 },
 };
 
@@ -489,7 +486,8 @@ struct entropy_store {
 	__u32 pool[0];
 };
 
-static struct entropy_store *create_entropy_store(int size, const char *name)
+static struct entropy_store __init *create_entropy_store(
+	int size, const char *name)
 {
 	struct	entropy_store	*r;
 	struct	poolinfo	*p;
@@ -1149,7 +1147,7 @@ EXPORT_SYMBOL(get_random_bytes);
  *
  * NOTE: This is an OS-dependent function.
  */
-static void init_std_data(struct entropy_store *r)
+static void __init init_std_data(struct entropy_store *r)
 {
 	struct timeval 	tv;
 	__u32		words[2];
@@ -1581,7 +1579,7 @@ ctl_table random_table[] = {
 	{ .ctl_name = 0 }
 };
 
-static void sysctl_init_random(struct entropy_store *pool)
+static void __init sysctl_init_random(struct entropy_store *pool)
 {
 	min_read_thresh = 8;
 	min_write_thresh = 0;

_

  reply	other threads:[~2004-03-26  0:29 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-25 23:57 [PATCH 0/22] /dev/random: Assorted fixes and cleanups Matt Mackall
2004-03-25 23:57 ` [PATCH 1/22] /dev/random: Simplify entropy debugging Matt Mackall
2004-03-25 23:57   ` [PATCH 2/22] /dev/random: Cleanup sleep logic Matt Mackall
2004-03-25 23:57     ` [PATCH 3/22] /dev/random: remove broken resizing sysctl Matt Mackall
2004-03-25 23:57       ` [PATCH 4/22] /dev/random: remove outdated RNDGETPOOL ioctl Matt Mackall
2004-03-25 23:57         ` [PATCH 5/22] /dev/random: pool struct cleanup and rename Matt Mackall
2004-03-25 23:57           ` [PATCH 6/22] /dev/random: simplify pool initialization Matt Mackall
2004-03-25 23:57             ` [PATCH 7/22] /dev/random: simplify reseed logic Matt Mackall
2004-03-25 23:57               ` [PATCH 8/22] /dev/random: BUG on premature random users Matt Mackall
2004-03-25 23:57                 ` [PATCH 9/22] /dev/random: more robust catastrophic reseed logic Matt Mackall
2004-03-25 23:57                   ` [PATCH 10/22] /dev/random: entropy reserve logic for starvation preve Matt Mackall
2004-03-25 23:57                     ` [PATCH 11/22] /dev/random: flag pools that need entropy reserve Matt Mackall
2004-03-25 23:57                       ` [PATCH 12/22] /dev/random: add pool for /dev/urandom to prevent starv Matt Mackall
2004-03-25 23:57                         ` [PATCH 13/22] /dev/random: kill extract_timer_state Matt Mackall
2004-03-25 23:57                           ` [PATCH 14/22] /dev/random: kill unused md5 copy Matt Mackall
2004-03-25 23:57                             ` [PATCH 15/22] /dev/random: kill unrolled SHA code Matt Mackall
2004-03-25 23:57                               ` [PATCH 16/22] /dev/random: kill 2.2 cruft Matt Mackall
2004-03-25 23:57                                 ` Matt Mackall [this message]
2004-03-25 23:57                                   ` [PATCH 18/22] /dev/random: bitop cleanup Matt Mackall
2004-03-25 23:57                                     ` [PATCH 19/22] /dev/random: use sched_clock for timing data Matt Mackall
2004-03-25 23:57                                       ` [PATCH 20/22] /dev/random: cleanup rol bitop Matt Mackall
2004-03-25 23:57                                         ` [PATCH 21/22] /dev/random: kill batching of entropy mixing Matt Mackall
2004-03-25 23:57                                           ` [PATCH 22/22] /dev/random: update credits Matt Mackall
2004-03-27 13:52                                           ` [PATCH 21/22] /dev/random: kill batching of entropy mixing Jamie Lokier
2004-03-27 15:17                                             ` Matt Mackall
2004-03-26  1:43                               ` [PATCH 15/22] /dev/random: kill unrolled SHA code Jeff Garzik
2004-03-26  3:59                                 ` Matt Mackall
2004-03-27 13:49                                   ` Jamie Lokier
2004-03-26  0:15         ` [PATCH 4/22] /dev/random: remove outdated RNDGETPOOL ioctl Andrew Morton
2004-03-26  0:15       ` [PATCH 3/22] /dev/random: remove broken resizing sysctl Andrew Morton
2004-03-26  3:53         ` Matt Mackall
2004-03-26  0:14     ` [PATCH 2/22] /dev/random: Cleanup sleep logic Andrew Morton
2004-03-26  3:49       ` Matt Mackall

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