linux-kernel - [PATCH 3/5] ib/ehca: repoll on invalid opcode

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>] [day] [month] [year] [list]

Message-ID: <20080812144941.7c89c18d@BL3D1974.boeblingen.de.ibm.com>
Date:	Tue, 12 Aug 2008 14:49:41 +0200
From:	Alexander Schmidt <alexs@...ux.vnet.ibm.com>
To:	linuxppc-dev <linuxppc-dev@...abs.org>,
	lkml <linux-kernel@...r.kernel.org>,
	of-ewg <ewg@...ts.openfabrics.org>,
	of-general <general@...ts.openfabrics.org>,
	Roland Dreier <rolandd@...co.com>
Cc:	Christoph Raisch <raisch@...ibm.com>,
	Hoang-Nam Nguyen <HNGUYEN@...ibm.com>,
	Joachim Fenkes <fenkes@...ibm.com>,
	Stefan Roscher <stefan.roscher@...ibm.com>
Subject: [PATCH 3/5] ib/ehca: repoll on invalid opcode

When the ehca driver detects an invalid opcode in a CQE, it currently
passes the CQE to the application and returns with success. This patch
changes the CQE handling to discard CQEs with invalid opcodes and to
continue reading the next CQE from the CQ.

Signed-off-by: Alexander Schmidt <alexs@...ux.vnet.ibm.com>
---
 drivers/infiniband/hw/ehca/ehca_reqs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- infiniband.git.orig/drivers/infiniband/hw/ehca/ehca_reqs.c
+++ infiniband.git/drivers/infiniband/hw/ehca/ehca_reqs.c
@@ -667,7 +667,7 @@ repoll:
 		ehca_dmp(cqe, 64, "ehca_cq=%p cq_num=%x",
 			 my_cq, my_cq->cq_number);
 		/* update also queue adder to throw away this entry!!!
*/
-		goto poll_cq_one_exit0;
+		goto repoll;
 	}
 
 	/* eval ib_wc_status */
--
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/