1 files changed, 3 insertions, 16 deletions
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 32e2652..0cab9e8 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());
 }