From: Gavin Shan <shangw@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Gavin Shan <shangw@linux.vnet.ibm.com>
Subject: [PATCH 02/27] powerpc/eeh: Enhance converting EEH dev
Date: Wed, 5 Jun 2013 15:34:03 +0800 [thread overview]
Message-ID: <1370417668-16832-3-git-send-email-shangw@linux.vnet.ibm.com> (raw)
In-Reply-To: <1370417668-16832-1-git-send-email-shangw@linux.vnet.ibm.com>
Under some special circumstances, the EEH device doesn't have the
associated device tree node or PCI device. The patch enhances those
functions converting EEH device to device tree node or PCI device
accordingly to avoid unnecessary system crash.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/eeh.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
index a80e32b4..e32c3c5 100644
--- a/arch/powerpc/include/asm/eeh.h
+++ b/arch/powerpc/include/asm/eeh.h
@@ -95,12 +95,12 @@ struct eeh_dev {
static inline struct device_node *eeh_dev_to_of_node(struct eeh_dev *edev)
{
- return edev->dn;
+ return edev ? edev->dn : NULL;
}
static inline struct pci_dev *eeh_dev_to_pci_dev(struct eeh_dev *edev)
{
- return edev->pdev;
+ return edev ? edev->pdev : NULL;
}
/*
--
1.7.5.4
next prev parent reply other threads:[~2013-06-05 7:34 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-05 7:34 [PATCH v3 00/27] EEH Support for PowerNV platform Gavin Shan
2013-06-05 7:34 ` [PATCH 01/27] powerpc/eeh: Fix fetching bus for single-dev-PE Gavin Shan
2013-06-05 7:34 ` Gavin Shan [this message]
2013-06-05 7:34 ` [PATCH 03/27] powerpc/eeh: Make eeh_phb_pe_get() public Gavin Shan
2013-06-05 7:34 ` [PATCH 04/27] powerpc/eeh: Make eeh_pe_get() public Gavin Shan
2013-06-05 7:34 ` [PATCH 05/27] powerpc/eeh: Trace PCI bus from PE Gavin Shan
2013-06-05 7:34 ` [PATCH 06/27] powerpc/eeh: Make eeh_init() public Gavin Shan
2013-06-05 7:34 ` [PATCH 07/27] powerpc/eeh: EEH post initialization operation Gavin Shan
2013-06-05 7:34 ` [PATCH 08/27] powerpc/eeh: Refactor eeh_reset_pe_once() Gavin Shan
2013-06-05 7:34 ` [PATCH 09/27] powerpc/eeh: Delay EEH probe during hotplug Gavin Shan
2013-06-05 7:34 ` [PATCH 10/27] powerpc/eeh: Differentiate EEH events Gavin Shan
2013-06-05 7:34 ` [PATCH 11/27] powerpc/eeh: Sync OPAL API with firmware Gavin Shan
2013-06-05 7:34 ` [PATCH 12/27] powerpc/eeh: EEH backend for P7IOC Gavin Shan
2013-06-05 7:34 ` [PATCH 13/27] powerpc/eeh: I/O chip post initialization Gavin Shan
2013-06-05 7:34 ` [PATCH 14/27] powerpc/eeh: I/O chip EEH enable option Gavin Shan
2013-06-05 7:34 ` [PATCH 15/27] powerpc/eeh: I/O chip EEH state retrieval Gavin Shan
2013-06-11 7:37 ` Benjamin Herrenschmidt
2013-06-12 3:32 ` Gavin Shan
2013-06-12 4:19 ` Benjamin Herrenschmidt
2013-06-13 4:26 ` Gavin Shan
2013-06-13 4:42 ` Benjamin Herrenschmidt
2013-06-13 5:50 ` Gavin Shan
2013-06-05 7:34 ` [PATCH 16/27] powerpc/eeh: I/O chip PE reset Gavin Shan
2013-06-05 7:34 ` [PATCH 17/27] powerpc/eeh: I/O chip PE log and bridge setup Gavin Shan
2013-06-11 7:37 ` Benjamin Herrenschmidt
2013-06-12 3:33 ` Gavin Shan
2013-06-05 7:34 ` [PATCH 18/27] powerpc/eeh: PowerNV EEH backends Gavin Shan
2013-06-05 7:34 ` [PATCH 19/27] powerpc/eeh: Initialization for PowerNV Gavin Shan
2013-06-05 7:34 ` [PATCH 20/27] powerpc/eeh: Enable EEH check for config access Gavin Shan
2013-06-05 7:34 ` [PATCH 21/27] powerpc/eeh: Process interrupts caused by EEH Gavin Shan
2013-06-11 8:13 ` Benjamin Herrenschmidt
2013-06-13 4:14 ` Gavin Shan
2013-06-05 7:34 ` [PATCH 22/27] powerpc/eeh: Allow to check fenced PHB proactively Gavin Shan
2013-06-05 7:34 ` [PATCH 23/27] powernv/opal: Notifier for OPAL events Gavin Shan
2013-06-12 0:32 ` Benjamin Herrenschmidt
2013-06-12 3:15 ` Gavin Shan
2013-06-05 7:34 ` [PATCH 24/27] powernv/opal: Disable OPAL notifier upon poweroff Gavin Shan
2013-06-05 7:34 ` [PATCH 25/27] powerpc/eeh: Register OPAL notifier for PCI error Gavin Shan
2013-06-05 7:34 ` [PATCH 26/27] powerpc/powernv: Debugfs directory for PHB Gavin Shan
2013-06-05 7:34 ` [PATCH 27/27] powerpc/eeh: Debugfs for error injection Gavin Shan
2013-06-11 7:46 ` [PATCH v3 00/27] EEH Support for PowerNV platform Benjamin Herrenschmidt
2013-06-12 3:18 ` Gavin Shan
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