linux-kernel - [PATCH 1/2] char/tpm: Remove duplicated lookup table

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1352759838-27175-1-git-send-email-peterhuewe@gmx.de>
Date:	Mon, 12 Nov 2012 23:37:17 +0100
From:	Peter Huewe <peterhuewe@....de>
To:	Kent Yoder <key@...ux.vnet.ibm.com>
Cc:	Marcel Selhorst <tpmdd@...horst.net>, Sirrix AG <tpmdd@...rix.com>,
	tpmdd-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	Peter Huewe <peterhuewe@....de>
Subject: [PATCH 1/2] char/tpm: Remove duplicated lookup table

The entries in tpm_protected_ordinal_duration are exactly the same as
the first 12 in tpm_ordinal_duration, so we can simply remove this one,
and save some bytes.

This does not change the behavior of the driver.

Signed-off-by: Peter Huewe <peterhuewe@....de>
---
This patch reflects only my opinion and work, 
and is not related to my employer or anybody else.

 drivers/char/tpm/tpm.c |   18 +-----------------
 1 files changed, 1 insertions(+), 17 deletions(-)

diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 93211df..9e3c529 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -65,21 +65,6 @@ static DECLARE_BITMAP(dev_mask, TPM_NUM_DEVICES);
  * values of the SHORT, MEDIUM, and LONG durations are retrieved
  * from the chip during initialization with a call to tpm_get_timeouts.
  */
-static const u8 tpm_protected_ordinal_duration[TPM_MAX_PROTECTED_ORDINAL] = {
-	TPM_UNDEFINED,		/* 0 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,		/* 5 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,		/* 10 */
-	TPM_SHORT,
-};
-
 static const u8 tpm_ordinal_duration[TPM_MAX_ORDINAL] = {
 	TPM_UNDEFINED,		/* 0 */
 	TPM_UNDEFINED,
@@ -357,8 +342,7 @@ unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip,
 	else if ((ordinal & TPM_PROTECTED_ORDINAL_MASK) <
 		 TPM_MAX_PROTECTED_ORDINAL)
 		duration_idx =
-		    tpm_protected_ordinal_duration[ordinal &
-						   TPM_PROTECTED_ORDINAL_MASK];
+		    tpm_ordinal_duration[ordinal & TPM_PROTECTED_ORDINAL_MASK];
 
 	if (duration_idx != TPM_UNDEFINED)
 		duration = chip->vendor.duration[duration_idx];
-- 
1.7.8.6

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/