diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 0da7f2bf5ee1..9e4f2739341d 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -2665,7 +2665,7 @@ static const struct file_operations spufs_ctx_fops = {
 	.release        = single_release,
 };
 
-struct spufs_tree_descr spufs_dir_contents[] = {
+const struct spufs_tree_descr spufs_dir_contents[] = {
 	{ "capabilities", &spufs_caps_fops, 0444, },
 	{ "mem",  &spufs_mem_fops,  0666, LS_SIZE, },
 	{ "regs", &spufs_regs_fops,  0666, sizeof(struct spu_reg128[128]), },
@@ -2706,7 +2706,7 @@ struct spufs_tree_descr spufs_dir_contents[] = {
 	{},
 };
 
-struct spufs_tree_descr spufs_dir_nosched_contents[] = {
+const struct spufs_tree_descr spufs_dir_nosched_contents[] = {
 	{ "capabilities", &spufs_caps_fops, 0444, },
 	{ "mem",  &spufs_mem_fops,  0666, LS_SIZE, },
 	{ "mbox", &spufs_mbox_fops, 0444, },
@@ -2731,12 +2731,12 @@ struct spufs_tree_descr spufs_dir_nosched_contents[] = {
 	{},
 };
 
-struct spufs_tree_descr spufs_dir_debug_contents[] = {
+const struct spufs_tree_descr spufs_dir_debug_contents[] = {
 	{ ".ctx", &spufs_ctx_fops, 0444, },
 	{},
 };
 
-struct spufs_coredump_reader spufs_coredump_read[] = {
+const struct spufs_coredump_reader spufs_coredump_read[] = {
 	{ "regs", __spufs_regs_read, NULL, sizeof(struct spu_reg128[128])},
 	{ "fpcr", __spufs_fpcr_read, NULL, sizeof(struct spu_reg128) },
 	{ "lslr", NULL, spufs_lslr_get, 19 },
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index e309ef70a531..64f068540d0d 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -186,8 +186,9 @@ static int spufs_rmdir(struct inode *parent, struct dentry *dir)
 	return simple_rmdir(parent, dir);
 }
 
-static int spufs_fill_dir(struct dentry *dir, struct spufs_tree_descr *files,
-			  int mode, struct spu_context *ctx)
+static int spufs_fill_dir(struct dentry *dir,
+		const struct spufs_tree_descr *files, int mode,
+		struct spu_context *ctx)
 {
 	struct dentry *dentry, *tmp;
 	int ret;
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index 3bf908e2873a..ae31573bea4a 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -241,9 +241,9 @@ struct spufs_tree_descr {
 	size_t size;
 };
 
-extern struct spufs_tree_descr spufs_dir_contents[];
-extern struct spufs_tree_descr spufs_dir_nosched_contents[];
-extern struct spufs_tree_descr spufs_dir_debug_contents[];
+extern const struct spufs_tree_descr spufs_dir_contents[];
+extern const struct spufs_tree_descr spufs_dir_nosched_contents[];
+extern const struct spufs_tree_descr spufs_dir_debug_contents[];
 
 /* system call implementation */
 extern struct spufs_calls spufs_calls;
@@ -358,7 +358,7 @@ struct spufs_coredump_reader {
 	u64 (*get)(struct spu_context *ctx);
 	size_t size;
 };
-extern struct spufs_coredump_reader spufs_coredump_read[];
+extern const struct spufs_coredump_reader spufs_coredump_read[];
 extern int spufs_coredump_num_notes;
 
 extern int spu_init_csa(struct spu_state *csa);