linux-kernel - [PATCH 2/3] drivers/char/random.c: remove unused stuct poolinfo::poolbits

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Message-Id: <20181102110447.23121-2-linux@rasmusvillemoes.dk>
Date:   Fri,  2 Nov 2018 12:04:46 +0100
From:   Rasmus Villemoes <linux@...musvillemoes.dk>
To:     "Theodore Ts'o" <tytso@....edu>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Rasmus Villemoes <linux@...musvillemoes.dk>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] drivers/char/random.c: remove unused stuct poolinfo::poolbits

This field is never used, might as well remove it.

Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
 drivers/char/random.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 320108df04c1..1b2e1580b4b5 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -295,7 +295,7 @@
  * To allow fractional bits to be tracked, the entropy_count field is
  * denominated in units of 1/8th bits.
  *
- * 2*(ENTROPY_SHIFT + log2(poolbits)) must <= 31, or the multiply in
+ * 2*(ENTROPY_SHIFT + poolbitshift) must <= 31, or the multiply in
  * credit_entropy_bits() needs to be 64 bits wide.
  */
 #define ENTROPY_SHIFT 3
@@ -360,8 +360,8 @@ static int random_write_wakeup_bits = 28 * OUTPUT_POOL_WORDS;
  * irreducible, which we have made here.
  */
 static const struct poolinfo {
-	int poolbitshift, poolwords, poolbytes, poolbits, poolfracbits;
-#define S(x) ilog2(x)+5, (x), (x)*4, (x)*32, (x) << (ENTROPY_SHIFT+5)
+	int poolbitshift, poolwords, poolbytes, poolfracbits;
+#define S(x) ilog2(x)+5, (x), (x)*4, (x) << (ENTROPY_SHIFT+5)
 	int tap1, tap2, tap3, tap4, tap5;
 } poolinfo_table[] = {
 	/* was: x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 */
-- 
2.19.1.6.gbde171bbf5