linux-kernel - [PATCH 6/8] drivers/net/wireless/ath9k/rc.c: use ARRAY

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 for Android: free password hash cracker in your pocket

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

Date:	Sun, 9 Nov 2008 17:56:10 +0100 (CET)
From:	Julia Lawall <julia@...u.dk>
To:	lrodriguez@...eros.com, jmalinen@...eros.com,
	linux-wireless@...r.kernel.org, ath9k-devel@...ts.ath9k.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH 6/8] drivers/net/wireless/ath9k/rc.c: use ARRAY_SIZE

From: Julia Lawall <julia@...u.dk>

ARRAY_SIZE is more concise to use when the size of an array is divided by
the size of its type or the size of its first element.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@i@
@@

#include <linux/kernel.h>

@depends on i using "paren.iso"@
type T;
T[] E;
@@

- (sizeof(E)/sizeof(E[...]))
+ ARRAY_SIZE(E)
// </smpl>

Signed-off-by: Julia Lawall <julia@...u.dk>

---
 drivers/net/wireless/ath9k/rc.c     |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c
index cca2fc5..ea37673 100644
--- a/drivers/net/wireless/ath9k/rc.c
+++ b/drivers/net/wireless/ath9k/rc.c
@@ -1272,8 +1272,7 @@ static void ath_rc_update_ht(struct ath_softc *sc,
 				rate_ctrl->state[tx_rate].per = 100;
 		} else {
 			/* xretries == 2 */
-			count = sizeof(nretry_to_per_lookup) /
-				sizeof(nretry_to_per_lookup[0]);
+			count = ARRAY_SIZE(nretry_to_per_lookup);
 			if (retries >= count)
 				retries = count - 1;
 			/* new_PER = 7/8*old_PER + 1/8*(currentPER) */
@@ -1291,8 +1290,7 @@ static void ath_rc_update_ht(struct ath_softc *sc,
 	} else {	/* xretries == 0 */
 		/* Update the PER. */
 		/* Make sure it doesn't index out of array's bounds. */
-		count = sizeof(nretry_to_per_lookup) /
-			sizeof(nretry_to_per_lookup[0]);
+		count = ARRAY_SIZE(nretry_to_per_lookup);
 		if (retries >= count)
 			retries = count - 1;
 		if (info_priv->n_bad_frames) {
--
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/