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 obsolete. So remove it.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 9 deletions

diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index 9148b6e8056b..d84a2f8cc12a 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -252,15 +252,6 @@ struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device,
                 .subdevice = ss_device,
         };
 
-        /*
-         * 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;
-
         return pci_get_dev_by_id(&id, from);
 }