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* [infiniband-diags] [2/2] check for duplicate port guids in libibnetdisc cache
@ 2010-04-14 22:48 Al Chu
       [not found] ` <1271285281.17987.140.camel-X2zTWyBD0EhliZ7u+bvwcg@public.gmane.org>
  0 siblings, 1 reply; 2+ messages in thread
From: Al Chu @ 2010-04-14 22:48 UTC (permalink / raw)
  To: Sasha Khapyorsky; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

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Hey Sasha,

This patch checks for duplicate port guids in a libibnetdisc cache when
it is loaded and report an error back to the user appropriately.

Al

-- 
Albert Chu
chu11-i2BcT+NCU+M@public.gmane.org
Computer Scientist
High Performance Systems Division
Lawrence Livermore National Laboratory

[-- Attachment #2: 0002-check-for-duplicate-port-guids-in-libibnetdisc-cache.patch --]
[-- Type: message/rfc822, Size: 1101 bytes --]

From: Albert Chu <chu11-i2BcT+NCU+M@public.gmane.org>
Subject: [PATCH] check for duplicate port guids in libibnetdisc cache
Date: Wed, 14 Apr 2010 15:25:11 -0700
Message-ID: <1271285070.17987.138.camel-X2zTWyBD0EhliZ7u+bvwcg@public.gmane.org>


Signed-off-by: Albert Chu <chu11-i2BcT+NCU+M@public.gmane.org>
---
 .../libibnetdisc/src/ibnetdisc_cache.c             |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/infiniband-diags/libibnetdisc/src/ibnetdisc_cache.c b/infiniband-diags/libibnetdisc/src/ibnetdisc_cache.c
index 2ec353d..a02fcba 100644
--- a/infiniband-diags/libibnetdisc/src/ibnetdisc_cache.c
+++ b/infiniband-diags/libibnetdisc/src/ibnetdisc_cache.c
@@ -505,6 +505,11 @@ static int _fill_port(ibnd_fabric_cache_t * fabric_cache, ibnd_node_t * node,
 		return -1;
 	}
 
+	if (port_cache->port_stored_to_fabric) {
+		IBND_DEBUG("Cache invalid: duplicate port discovered\n");
+		return -1;
+	}
+
 	node->ports[port_cache->port->portnum] = port_cache->port;
 	port_cache->port_stored_to_fabric++;
 
-- 
1.5.4.5


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2010-04-14 22:48 [infiniband-diags] [2/2] check for duplicate port guids in libibnetdisc cache Al Chu
     [not found] ` <1271285281.17987.140.camel-X2zTWyBD0EhliZ7u+bvwcg@public.gmane.org>
2010-04-19 14:57   ` Sasha Khapyorsky

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