linux-kernel - [net PATCH v3 02/10] octeontx2-af: Fix start and end bit for scan config

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

Message-ID: <20230419062018.286136-3-saikrishnag@marvell.com>
Date:   Wed, 19 Apr 2023 11:50:10 +0530
From:   Sai Krishna <saikrishnag@...vell.com>
To:     <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <simon.horman@...igine.com>,
        <leon@...nel.org>, <sgoutham@...vell.com>, <gakula@...vell.com>,
        <lcherian@...vell.com>, <jerinj@...vell.com>, <hkelam@...vell.com>,
        <sbhatta@...vell.com>
CC:     Ratheesh Kannoth <rkannoth@...vell.com>,
        Sai Krishna <saikrishnag@...vell.com>
Subject: [net PATCH v3 02/10] octeontx2-af: Fix start and end bit for scan config

From: Ratheesh Kannoth <rkannoth@...vell.com>

Fix the NPC nibble start and end positions in the bit
map. for_each_set_bit_from() needs start bit as one bit prior
and end bit as one bit post position in the bit map

Fixes: b747923afff8 ("octeontx2-af: Exact match support")
Signed-off-by: Ratheesh Kannoth <rkannoth@...vell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@...vell.com>
Signed-off-by: Sai Krishna <saikrishnag@...vell.com>
---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c
index 006beb5cf98d..27603078689a 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c
@@ -593,9 +593,8 @@ static int npc_scan_kex(struct rvu *rvu, int blkaddr, u8 intf)
 	 * exact match code.
 	 */
 	masked_cfg = cfg & NPC_EXACT_NIBBLE;
-	bitnr = NPC_EXACT_NIBBLE_START;
-	for_each_set_bit_from(bitnr, (unsigned long *)&masked_cfg,
-			      NPC_EXACT_NIBBLE_START) {
+	bitnr = NPC_EXACT_NIBBLE_START - 1;
+	for_each_set_bit_from(bitnr, (unsigned long *)&masked_cfg, NPC_EXACT_NIBBLE_END + 1) {
 		npc_scan_exact_result(mcam, bitnr, key_nibble, intf);
 		key_nibble++;
 	}
-- 
2.25.1