Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[firefly-linux-kernel-4.4.55.git] / arch / x86 / xen / debugfs.c

diff --git a/arch/x86/xen/debugfs.c b/arch/x86/xen/debugfs.c
index ef1db1900d86366caa78c84652decb5841f5efbd..c8377fb26cdfc488fa7ea248de8369e3e0464373 100644 (file)
--- a/arch/x86/xen/debugfs.c
+++ b/arch/x86/xen/debugfs.c
@@ -19,107 +19,3 @@ struct dentry * __init xen_init_debugfs(void)
        return d_xen_debug;
 }
 
-struct array_data
-{
-       void *array;
-       unsigned elements;
-};
-
-static int u32_array_open(struct inode *inode, struct file *file)
-{
-       file->private_data = NULL;
-       return nonseekable_open(inode, file);
-}
-
-static size_t format_array(char *buf, size_t bufsize, const char *fmt,
-                          u32 *array, unsigned array_size)
-{
-       size_t ret = 0;
-       unsigned i;
-
-       for(i = 0; i < array_size; i++) {
-               size_t len;
-
-               len = snprintf(buf, bufsize, fmt, array[i]);
-               len++;  /* ' ' or '\n' */
-               ret += len;
-
-               if (buf) {
-                       buf += len;
-                       bufsize -= len;
-                       buf[-1] = (i == array_size-1) ? '\n' : ' ';
-               }
-       }
-
-       ret++;          /* \0 */
-       if (buf)
-               *buf = '\0';
-
-       return ret;
-}
-
-static char *format_array_alloc(const char *fmt, u32 *array, unsigned array_size)
-{
-       size_t len = format_array(NULL, 0, fmt, array, array_size);
-       char *ret;
-
-       ret = kmalloc(len, GFP_KERNEL);
-       if (ret == NULL)
-               return NULL;
-
-       format_array(ret, len, fmt, array, array_size);
-       return ret;
-}
-
-static ssize_t u32_array_read(struct file *file, char __user *buf, size_t len,
-                             loff_t *ppos)
-{
-       struct inode *inode = file->f_path.dentry->d_inode;
-       struct array_data *data = inode->i_private;
-       size_t size;
-
-       if (*ppos == 0) {
-               if (file->private_data) {
-                       kfree(file->private_data);
-                       file->private_data = NULL;
-               }
-
-               file->private_data = format_array_alloc("%u", data->array, data->elements);
-       }
-
-       size = 0;
-       if (file->private_data)
-               size = strlen(file->private_data);
-
-       return simple_read_from_buffer(buf, len, ppos, file->private_data, size);
-}
-
-static int xen_array_release(struct inode *inode, struct file *file)
-{
-       kfree(file->private_data);
-
-       return 0;
-}
-
-static const struct file_operations u32_array_fops = {
-       .owner  = THIS_MODULE,
-       .open   = u32_array_open,
-       .release= xen_array_release,
-       .read   = u32_array_read,
-       .llseek = no_llseek,
-};
-
-struct dentry *xen_debugfs_create_u32_array(const char *name, umode_t mode,
-                                           struct dentry *parent,
-                                           u32 *array, unsigned elements)
-{
-       struct array_data *data = kmalloc(sizeof(*data), GFP_KERNEL);
-
-       if (data == NULL)
-               return NULL;
-
-       data->array = array;
-       data->elements = elements;
-
-       return debugfs_create_file(name, mode, parent, data, &u32_array_fops);
-}