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-rw-r--r--arch/powerpc/kernel/prom.c9
-rw-r--r--arch/powerpc/kernel/setup-common.c13
-rw-r--r--include/asm-powerpc/system.h2
3 files changed, 18 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 6d5e601097a0..0782afc29f5f 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -52,6 +52,7 @@
#include <asm/pSeries_reconfig.h>
#include <asm/pci-bridge.h>
#include <asm/kexec.h>
+#include <asm/system.h>
#ifdef DEBUG
#define DBG(fmt...) printk(KERN_ERR fmt)
@@ -1730,22 +1731,18 @@ struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
}
EXPORT_SYMBOL(of_get_cpu_node);
-#ifdef DEBUG
+#if defined(CONFIG_DEBUG_FS) && defined(DEBUG)
static struct debugfs_blob_wrapper flat_dt_blob;
static int __init export_flat_device_tree(void)
{
struct dentry *d;
- d = debugfs_create_dir("powerpc", NULL);
- if (!d)
- return 1;
-
flat_dt_blob.data = initial_boot_params;
flat_dt_blob.size = initial_boot_params->totalsize;
d = debugfs_create_blob("flat-device-tree", S_IFREG | S_IRUSR,
- d, &flat_dt_blob);
+ powerpc_debugfs_root, &flat_dt_blob);
if (!d)
return 1;
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 38c4b733a72e..4924c48cb1ff 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -32,6 +32,7 @@
#include <linux/unistd.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
+#include <linux/debugfs.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/processor.h>
@@ -579,3 +580,15 @@ static int __init check_cache_coherency(void)
late_initcall(check_cache_coherency);
#endif /* CONFIG_CHECK_CACHE_COHERENCY */
+
+#ifdef CONFIG_DEBUG_FS
+struct dentry *powerpc_debugfs_root;
+
+static int powerpc_debugfs_init(void)
+{
+ powerpc_debugfs_root = debugfs_create_dir("powerpc", NULL);
+
+ return powerpc_debugfs_root == NULL;
+}
+arch_initcall(powerpc_debugfs_init);
+#endif
diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h
index eff3de953712..32aa42b748be 100644
--- a/include/asm-powerpc/system.h
+++ b/include/asm-powerpc/system.h
@@ -559,5 +559,7 @@ static inline void create_function_call(unsigned long addr, void * func)
extern void account_system_vtime(struct task_struct *);
#endif
+extern struct dentry *powerpc_debugfs_root;
+
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_SYSTEM_H */