From: Feng Tang <feng.tang@intel.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Steven Rostedt <rostedt@goodmis.org>, Avi Kivity <avi@redhat.com>,
Steven Rostedt <srostedt@redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>,
Yinghai Lu <yinghai@kernel.org>, <linux-pci@vger.kernel.org>,
akpm@linux-foundation.org, gregkh@linuxfoundation.org
Subject: [PATCH 2/2] PCI: Remove the obsolete no_pci_devices() check
Date: Thu, 23 Aug 2012 15:45:47 +0800 [thread overview]
Message-ID: <20120823154547.40d07cd0@feng-i7> (raw)
In-Reply-To: <CAErSpo7HhdDi4EhbQZ-oZbsbGVvTfZW8MwKn7Tm+6B8jaQxLBg@mail.gmail.com>
>From 9f2f3bbdf65f669e091c72b9648a4a0394ce28f5 Mon Sep 17 00:00:00 2001
From: Feng Tang <feng.tang@intel.com>
Date: Thu, 23 Aug 2012 14:55:48 +0800
Subject: [PATCH 2/2] PCI: Remove the obsolete no_pci_devices() check
In function pci_get_subsys() there is a check:
/*
* pci_find_subsys() can be called on the ide_setup() path,
* super-early in boot. But the down_read() will enable local
* interrupts, which can cause some machines to crash. So here we
* detect and flag that situation and bail out early.
*/
if (unlikely(no_pci_devices()))
return NULL;
But there is no ide_setup() now, and no down_read() either, which
makes the check absolete. So remove it.
Signed-off-by: Feng Tang <feng.tang@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/pci/search.c | 9 ---------
1 files changed, 0 insertions(+), 9 deletions(-)
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index 78a08b1..e6e604f 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -247,15 +247,6 @@ struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device,
{
struct pci_device_id id;
- /*
- * pci_find_subsys() can be called on the ide_setup() path,
- * super-early in boot. But the down_read() will enable local
- * interrupts, which can cause some machines to crash. So here we
- * detect and flag that situation and bail out early.
- */
- if (unlikely(no_pci_devices()))
- return NULL;
-
id.vendor = vendor;
id.device = device;
id.subvendor = ss_vendor;
--
1.7.1
prev parent reply other threads:[~2012-08-23 7:45 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20120731121759.GA17822@localhost>
[not found] ` <5017D19B.5080806@redhat.com>
[not found] ` <1343738627.27983.30.camel@gandalf.stny.rr.com>
[not found] ` <5017D4AB.3090107@redhat.com>
[not found] ` <1343740419.27983.33.camel@gandalf.stny.rr.com>
[not found] ` <20120731234336.GA5526@localhost>
[not found] ` <1343778699.27983.70.camel@gandalf.stny.rr.com>
[not found] ` <20120731235705.GW2422@linux.vnet.ibm.com>
[not found] ` <1343779778.27983.73.camel@gandalf.stny.rr.com>
[not found] ` <20120801001811.GX2422@linux.vnet.ibm.com>
2012-08-01 0:43 ` pci_get_subsys: GFP_KERNEL allocations with IRQs disabled Fengguang Wu
2012-08-22 2:50 ` Fengguang Wu
2012-08-22 7:49 ` Feng Tang
2012-08-22 13:02 ` Fengguang Wu
2012-08-22 18:02 ` Bjorn Helgaas
2012-08-23 5:45 ` Feng Tang
2012-08-23 7:45 ` [PATCH 1/2] PCI: Use local parameter pci_device_id for pci_get_subsys/class() Feng Tang
2012-09-08 1:00 ` Yinghai Lu
2012-09-08 1:32 ` Yinghai Lu
2012-09-08 1:59 ` Greg Kroah-Hartman
2012-09-08 13:42 ` Fengguang Wu
2012-09-08 15:30 ` Yinghai Lu
2012-09-08 15:34 ` Feng Tang
2012-09-08 18:40 ` Yinghai Lu
2012-09-08 21:06 ` Bjorn Helgaas
2012-08-23 7:45 ` Feng Tang [this message]
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