linux-kernel - [PATCH 2/2] mn10300/PCI: Remove useless pcibios_last

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Message-ID: <20131023032412.12410.9371.stgit@bhelgaas-glaptop.roam.corp.google.com>
Date:	Tue, 22 Oct 2013 21:24:12 -0600
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	David Howells <dhowells@...hat.com>,
	Koichi Yasutake <yasutake.koichi@...panasonic.com>
Cc:	linux-pci@...r.kernel.org, linux-am33-list@...hat.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] mn10300/PCI: Remove useless pcibios_last_bus

pcibios_last_bus was apparently copied from x86.  On mn10300, it is
statically initialized to -1 and may be set with the "pci=lastbus=<X>"
boot option, but it is never tested.  This patch removes everything
related to pcibios_last_bus.

Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
---
 arch/mn10300/unit-asb2305/pci-asb2305.h |    1 -
 arch/mn10300/unit-asb2305/pci.c         |    5 -----
 2 files changed, 6 deletions(-)

diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.h b/arch/mn10300/unit-asb2305/pci-asb2305.h
index 7fa66a0..9e17aca 100644
--- a/arch/mn10300/unit-asb2305/pci-asb2305.h
+++ b/arch/mn10300/unit-asb2305/pci-asb2305.h
@@ -35,7 +35,6 @@ extern void pcibios_resource_survey(void);
 
 /* pci.c */
 
-extern int pcibios_last_bus;
 extern struct pci_ops *pci_root_ops;
 
 extern struct irq_routing_table *pcibios_get_irq_routing_table(void);
diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c
index e37fac0..6b4339f 100644
--- a/arch/mn10300/unit-asb2305/pci.c
+++ b/arch/mn10300/unit-asb2305/pci.c
@@ -24,7 +24,6 @@
 
 unsigned int pci_probe = 1;
 
-int pcibios_last_bus = -1;
 struct pci_ops *pci_root_ops;
 
 /*
@@ -392,10 +391,6 @@ char *__init pcibios_setup(char *str)
 	if (!strcmp(str, "off")) {
 		pci_probe = 0;
 		return NULL;
-
-	} else if (!strncmp(str, "lastbus=", 8)) {
-		pcibios_last_bus = simple_strtol(str+8, NULL, 0);
-		return NULL;
 	}
 
 	return str;

--
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