From: "Bryan O'Sullivan" <bos@pathscale.com>
To: rdreier@cisco.com
Cc: linux-kernel@vger.kernel.org, openib-general@openib.org
Subject: [PATCH 6 of 28] IB/ipath - clean up handling of GUID 0
Date: Thu, 28 Sep 2006 09:00:02 -0700 [thread overview]
Message-ID: <0fe847c544586f6f74d0.1159459202@eng-12.pathscale.com> (raw)
In-Reply-To: <patchbomb.1159459196@eng-12.pathscale.com>
Respond with an error to the SM if our GUID is 0, and don't allow the
user to set our GUID to 0.
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
diff -r e2916bbf09ed -r 0fe847c54458 drivers/infiniband/hw/ipath/ipath_mad.c
--- a/drivers/infiniband/hw/ipath/ipath_mad.c Thu Sep 28 08:57:12 2006 -0700
+++ b/drivers/infiniband/hw/ipath/ipath_mad.c Thu Sep 28 08:57:12 2006 -0700
@@ -87,7 +87,8 @@ static int recv_subn_get_nodeinfo(struct
struct ipath_devdata *dd = to_idev(ibdev)->dd;
u32 vendor, majrev, minrev;
- if (smp->attr_mod)
+ /* GUID 0 is illegal */
+ if (smp->attr_mod || (dd->ipath_guid == 0))
smp->status |= IB_SMP_INVALID_FIELD;
nip->base_version = 1;
@@ -131,10 +132,15 @@ static int recv_subn_get_guidinfo(struct
* We only support one GUID for now. If this changes, the
* portinfo.guid_cap field needs to be updated too.
*/
- if (startgx == 0)
- /* The first is a copy of the read-only HW GUID. */
- *p = to_idev(ibdev)->dd->ipath_guid;
- else
+ if (startgx == 0) {
+ __be64 g = to_idev(ibdev)->dd->ipath_guid;
+ if (g == 0)
+ /* GUID 0 is illegal */
+ smp->status |= IB_SMP_INVALID_FIELD;
+ else
+ /* The first is a copy of the read-only HW GUID. */
+ *p = g;
+ } else
smp->status |= IB_SMP_INVALID_FIELD;
return reply(smp);
diff -r e2916bbf09ed -r 0fe847c54458 drivers/infiniband/hw/ipath/ipath_sysfs.c
--- a/drivers/infiniband/hw/ipath/ipath_sysfs.c Thu Sep 28 08:57:12 2006 -0700
+++ b/drivers/infiniband/hw/ipath/ipath_sysfs.c Thu Sep 28 08:57:12 2006 -0700
@@ -257,7 +257,7 @@ static ssize_t store_guid(struct device
struct ipath_devdata *dd = dev_get_drvdata(dev);
ssize_t ret;
unsigned short guid[8];
- __be64 nguid;
+ __be64 new_guid;
u8 *ng;
int i;
@@ -266,7 +266,7 @@ static ssize_t store_guid(struct device
&guid[4], &guid[5], &guid[6], &guid[7]) != 8)
goto invalid;
- ng = (u8 *) &nguid;
+ ng = (u8 *) &new_guid;
for (i = 0; i < 8; i++) {
if (guid[i] > 0xff)
@@ -274,7 +274,10 @@ static ssize_t store_guid(struct device
ng[i] = guid[i];
}
- dd->ipath_guid = nguid;
+ if (new_guid == 0)
+ goto invalid;
+
+ dd->ipath_guid = new_guid;
dd->ipath_nguid = 1;
ret = strlen(buf);
next prev parent reply other threads:[~2006-09-28 16:11 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-28 15:59 [PATCH 0 of 28] ipath patches for 2.6.19 Bryan O'Sullivan
2006-09-28 15:59 ` [PATCH 1 of 28] IB/ipath - limit # of packets sent without an ACK received Bryan O'Sullivan
2006-09-28 18:16 ` Roland Dreier
2006-09-28 18:33 ` Bryan O'Sullivan
2006-09-28 15:59 ` [PATCH 2 of 28] IB/ipath - fix memory leak if allocation fails Bryan O'Sullivan
2006-09-28 15:59 ` [PATCH 3 of 28] IB/ipath - driver support for userspace sharing of HW contexts Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 4 of 28] IB/ipath - support revision 2 InfiniPath PCIE devices Bryan O'Sullivan
2006-09-28 18:15 ` Roland Dreier
2006-09-28 16:00 ` [PATCH 5 of 28] IB/ipath - unregister from IB core early Bryan O'Sullivan
2006-09-28 16:00 ` Bryan O'Sullivan [this message]
2006-09-28 16:00 ` [PATCH 7 of 28] IB/ipath - lock and count allocated CQs properly Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 8 of 28] IB/ipath - count SRQs properly Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 9 of 28] IB/ipath - only allow complete writes to flash Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 10 of 28] IB/ipath - RC and UC should validate SLID and DLID Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 11 of 28] IB/ipath - ensure that PD of MR matches PD of QP checking the Rkey Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 12 of 28] IB/ipath - print more informative parity error messages Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 13 of 28] IB/ipath - fix compiler warnings and errors on non-x86_64 systems Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 14 of 28] IB/ipath - Fix mismatch in shifts and masks for printing debug info Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 15 of 28] IB/ipath - support multiple simultaneous devices of different types Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 16 of 28] IB/ipath - drop unnecessary "(void *)" casts Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 17 of 28] IB/ipath - improved support for powerpc Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 18 of 28] IB/ipath - flush RWQEs if access error or invalid error seen Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 19 of 28] IB/ipath - call mtrr_del with correct arguments Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 20 of 28] IB/ipath - clean up module exit code Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 21 of 28] IB/ipath - change HT CRC message to indicate how to resolve problem Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 22 of 28] IB/ipath - fix and recover TXE piobuf and PBC parity errors Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 23 of 28] IB/ipath - fix EEPROM read when driver is compiled with -Os Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 24 of 28] IB/mthca - Fix compiler warnings with gcc4 on possible unitialized variables Bryan O'Sullivan
2006-09-28 18:14 ` Roland Dreier
2006-09-28 20:46 ` Jeremy Fitzhardinge
2006-09-28 16:00 ` [PATCH 25 of 28] IB/ipath - Set CPU affinity early Bryan O'Sullivan
2006-09-28 18:15 ` Roland Dreier
2006-09-28 16:00 ` [PATCH 26 of 28] IB/ipath - support new PCIE device, QLE7142 Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 27 of 28] IB/ipath - fix races with ib_resize_cq() Bryan O'Sullivan
2006-09-28 16:00 ` [PATCH 28 of 28] IB/ipath - fix lockdep error upon "ifconfig ibN down" Bryan O'Sullivan
2006-09-30 0:36 ` [PATCH 0 of 28] ipath patches for 2.6.19 Eric W. Biederman
2006-10-02 18:14 ` Bryan O'Sullivan
2006-10-03 1:22 ` Eric W. Biederman
2006-10-03 15:25 ` Bryan O'Sullivan
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