linux/drivers/mtd
Bjørn Mork 96a3295c35 mtdblock: warn if opened on NAND
Warning on every translated mtd partition results in excessive log noise
if this driver is loaded:

  nand: device found, Manufacturer ID: 0xc2, Chip ID: 0xf1
  nand: Macronix MX30LF1G18AC
  nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
  mt7621-nand 1e003000.nand: ECC strength adjusted to 4 bits
  read_bbt: found bbt at block 1023
  10 fixed-partitions partitions found on MTD device mt7621-nand
  Creating 10 MTD partitions on "mt7621-nand":
  0x000000000000-0x000000080000 : "Bootloader"
  mtdblock: MTD device 'Bootloader' is NAND, please consider using UBI block devices instead.
  0x000000080000-0x000000100000 : "Config"
  mtdblock: MTD device 'Config' is NAND, please consider using UBI block devices instead.
  0x000000100000-0x000000140000 : "Factory"
  mtdblock: MTD device 'Factory' is NAND, please consider using UBI block devices instead.
  0x000000140000-0x000002000000 : "Kernel"
  mtdblock: MTD device 'Kernel' is NAND, please consider using UBI block devices instead.
  0x000000540000-0x000002000000 : "ubi"
  mtdblock: MTD device 'ubi' is NAND, please consider using UBI block devices instead.
  0x000002140000-0x000004000000 : "Kernel2"
  mtdblock: MTD device 'Kernel2' is NAND, please consider using UBI block devices instead.
  0x000004000000-0x000004100000 : "wwan"
  mtdblock: MTD device 'wwan' is NAND, please consider using UBI block devices instead.
  0x000004100000-0x000005100000 : "data"
  mtdblock: MTD device 'data' is NAND, please consider using UBI block devices instead.
  0x000005100000-0x000005200000 : "rom-d"
  mtdblock: MTD device 'rom-d' is NAND, please consider using UBI block devices instead.
  0x000005200000-0x000005280000 : "reserve"
  mtdblock: MTD device 'reserve' is NAND, please consider using UBI block devices instead.
  mtk_soc_eth 1e100000.ethernet eth0: mediatek frame engine at 0xbe100000, irq 21

This is more likely to annoy than to help users of embedded distros where
this driver is enabled by default.  Making the blockdevs available does
not imply that they are in use, and warning about bootloader partitions
or other devices which obviously never will be mounted is more confusing
than helpful.

Move the warning to open(), where it will be of more use - actually warning
anyone who mounts a file system on NAND using mtdblock.

Fixes: e07403a8c6 ("mtdblock: Warn if added for a NAND device")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220328161108.87757-1-bjorn@mork.no
2022-04-25 10:43:12 +02:00
..
chips mtd: gen_probe: Use bitmap_zalloc() when applicable 2021-12-09 17:52:29 +01:00
devices mtd: phram: Allow probing via reserved-memory 2022-04-25 10:37:49 +02:00
hyperbus mtd: hyperbus: HBMC_AM654 should depend on ARCH_K3 2022-03-14 17:01:58 +01:00
lpddr mtd: lpddr: fix excessive stack usage with clang 2020-08-27 14:36:07 +02:00
maps mtd: maps: ixp4xx: Drop driver 2022-04-25 10:37:49 +02:00
nand Core MTD changes: 2022-03-25 13:35:34 -07:00
parsers mtd: parsers: bcm47xxpart: print correct offset on read error 2022-04-04 10:33:11 +02:00
spi-nor Core MTD changes: 2022-03-25 13:35:34 -07:00
tests mtd: tests: Fix eraseblock read speed miscalculation for lower partition sizes 2022-03-14 17:01:47 +01:00
ubi This pull request contains fixes for JFFS2, UBI and UBIFS 2022-03-31 16:09:41 -07:00
ftl.c mtd/ftl: don't cast away the type when calling add_mtd_blktrans_dev 2021-08-23 10:01:04 +02:00
inftlcore.c mtd: inftlcore: Use module_mtd_blktrans to register driver 2021-03-11 09:37:48 +01:00
inftlmount.c mtd: inftl: remove unnecessary oom message 2021-06-11 20:44:21 +02:00
Kconfig mtdblock: Add comment about UBI block devices 2021-08-06 22:05:13 +02:00
Makefile mtd: Support kmsg dumper based on pstore/blk 2020-05-31 19:49:01 -07:00
mtd_blkdevs.c mtd_blkdevs: avoid soft lockups with some mtd/spi devices 2022-01-26 11:43:02 +01:00
mtdblock_ro.c mtdblock: Warn if added for a NAND device 2021-08-17 18:41:59 +02:00
mtdblock.c mtdblock: warn if opened on NAND 2022-04-25 10:43:12 +02:00
mtdchar.c mtdchar: prevent unbounded allocation in MEMWRITE ioctl 2021-12-09 17:52:29 +01:00
mtdconcat.c mtd: mtdconcat: Check _read, _write callbacks existence before assignment 2021-08-17 18:43:33 +02:00
mtdcore.c mtd: core: Check devicetree alias for index 2022-04-25 10:37:49 +02:00
mtdcore.h
mtdoops.c mtd: mtdoops: remove unnecessary oom message 2021-06-11 20:43:46 +02:00
mtdpart.c mtd: Fixed breaking list in __mtd_del_partition. 2021-12-03 14:27:18 +01:00
mtdpstore.c pstore/blk: Include zone in pstore_device_info 2021-06-16 21:09:31 -07:00
mtdsuper.c mm: don't include <linux/blkdev.h> in <linux/backing-dev.h> 2021-10-18 06:17:01 -06:00
mtdswap.c block: remove genhd.h 2022-02-02 07:49:59 -07:00
nftlcore.c mtd: nftlcore: remove set but rewrite variables 2021-05-10 12:11:46 +02:00
nftlmount.c mtd: nftl: remove unnecessary oom message 2021-06-11 20:43:26 +02:00
rfd_ftl.c mtd/rfd_ftl: don't cast away the type when calling add_mtd_blktrans_dev 2021-08-23 10:01:06 +02:00
sm_ftl.c drivers: mtd: sm_ftl: Fix alignment of block comment 2021-05-10 12:49:00 +02:00
sm_ftl.h
ssfdc.c