1 files changed, 3 insertions, 16 deletions

diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 32e26526f7e4..0cab9e8c3794 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -27,6 +27,7 @@
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/kmsg_dump.h>
+#include <linux/pagemap.h>
 #include <linux/pstore.h>
 #include <linux/zlib.h>
 #include <asm/uaccess.h>
@@ -733,24 +734,10 @@ static void oops_to_nvram(struct kmsg_dumper *dumper,
 
 static loff_t dev_nvram_llseek(struct file *file, loff_t offset, int origin)
 {
-        int size;
-
         if (ppc_md.nvram_size == NULL)
                 return -ENODEV;
-        size = ppc_md.nvram_size();
-
-        switch (origin) {
-        case 1:
-                offset += file->f_pos;
-                break;
-        case 2:
-                offset += size;
-                break;
-        }
-        if (offset < 0)
-                return -EINVAL;
-        file->f_pos = offset;
-        return file->f_pos;
+        return generic_file_llseek_size(file, offset, origin, MAX_LFS_FILESIZE,
+                                        ppc_md.nvram_size());
 }