[PATCH 2/3] pci: add pci_printk

[Yinghai Lu <yhlu.kernel@gmail.com>]

use DEFINE_LOGLEVEL_SETUP to set loglevel for pci

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
---
 drivers/pci/pci.c   |    7 +++++++
 include/linux/pci.h |    6 ++++++
 2 files changed, 13 insertions(+)

Index: linux-2.6/drivers/pci/pci.c
===================================================================
--- linux-2.6.orig/drivers/pci/pci.c
+++ linux-2.6/drivers/pci/pci.c
@@ -1953,6 +1953,13 @@ static int __devinit pci_setup(char *str
 }
 early_param("pci", pci_setup);
 
+static void __init setup_loglevel_pci(char *str)
+{
+	get_option(&str, &loglevel_pci);
+}
+
+DEFINE_LOGLEVEL_SETUP(pci, "pci:", setup_loglevel_pci);
+
 device_initcall_sync(pci_init);
 
 EXPORT_SYMBOL(pci_reenable_device);
Index: linux-2.6/include/linux/pci.h
===================================================================
--- linux-2.6.orig/include/linux/pci.h
+++ linux-2.6/include/linux/pci.h
@@ -55,6 +55,12 @@
 /* Include the ID list */
 #include <linux/pci_ids.h>
 
+extern int loglevel_pci;
+#define pci_printk(v, s, a...) do {        \
+		if ((v) <= loglevel_pci)  \
+			printk(s, ##a);    \
+	} while (0)
+
 /* pci_slot represents a physical slot */
 struct pci_slot {
 	struct pci_bus *bus;		/* The bus this slot is on */