since we can query this value by MTDIOC_ERASESTATE after: commit 30cb497fe125de6ae2e52a72758180437ec65974 Author: Gustavo Henrique Nihei <gustavo.nihei@espressif.com> Date: Tue Jul 13 19:33:12 2021 -0300 mtd: Add MTDIOC_ERASESTATE command for retrieving erase state value Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>