> @@ -454,7 +454,7 @@ static int cros_ec_create_panicinfo(struct cros_ec_debugfs *debug_info) > debug_info->panicinfo_blob.data = data; > debug_info->panicinfo_blob.size = ret; > > - debugfs_create_blob("panicinfo", S_IFREG | 0444, debug_info->dir, > + debugfs_create_blob("panicinfo", 0444, debug_info->dir, > &debug_info->panicinfo_blob); > This just looks like a bug that S_IFREG was passed in the "mode" argument. Your change in part 2 doesn't really affect much here. debugfs_create_blob() debugfs_create_file_unsafe() __debugfs_create_file() which does: if (!(mode & S_IFMT)) mode |= S_IFREG; BUG_ON(!S_ISREG(mode)); So this is a fine cleanup. But your patch description about ensuring that the file remains read-only isn't accurate. Your change didn't affect the mode of this file. -Tony