From 1e0a74f10d76021988ecd9e34e6c0c65d1c5403e Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Sat, 7 May 2016 18:09:18 +0200 Subject: UBI: Don't read back all data in ubi_eba_copy_leb() Drop this paranoia check from the old days. If our MTD driver or the flash is so bad that we even cannot trust it to write data we have bigger problems. If one really does not trust the flash and wants write-verify she can enable UBI io checks using debugfs. Signed-off-by: Richard Weinberger --- drivers/mtd/ubi/eba.c | 26 -------------------------- 1 file changed, 26 deletions(-) (limited to 'drivers/mtd') diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c index 5b9834cf2820..61356a9b1303 100644 --- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -1202,32 +1202,6 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to, } cond_resched(); - - /* - * We've written the data and are going to read it back to make - * sure it was written correctly. - */ - memset(ubi->peb_buf, 0xFF, aldata_size); - err = ubi_io_read_data(ubi, ubi->peb_buf, to, 0, aldata_size); - if (err) { - if (err != UBI_IO_BITFLIPS) { - ubi_warn(ubi, "error %d while reading data back from PEB %d", - err, to); - if (is_error_sane(err)) - err = MOVE_TARGET_RD_ERR; - } else - err = MOVE_TARGET_BITFLIPS; - goto out_unlock_buf; - } - - cond_resched(); - - if (crc != crc32(UBI_CRC32_INIT, ubi->peb_buf, data_size)) { - ubi_warn(ubi, "read data back from PEB %d and it is different", - to); - err = -EINVAL; - goto out_unlock_buf; - } } ubi_assert(vol->eba_tbl[lnum] == from); -- cgit v1.2.3