kernel/drivers/mtd/devices/mtdram.c, branch linux-rolling-stable

mtd: mtdram: Expose module parameters

2019-01-08T11:42:57Z

Since we can set module parameters also when a driver is built in, it makes no sense to protect module parameter with #ifdef MODULE. Now the mtdram sizes can also set when the module is not a loadable module. Signed-off-by: Richard Weinberger Signed-off-by: Boris Brezillon

mtd: Stop updating erase_info->state and calling mtd_erase_callback()

2018-03-21T08:50:56Z

MTD users are no longer checking erase_info->state to determine if the erase operation failed or succeeded. Moreover, mtd_erase_callback() is now a NOP. We can safely get rid of all mtd_erase_callback() calls and all erase_info->state assignments. While at it, get rid of the erase_info->state field, all MTD_ERASE_XXX definitions and the mtd_erase_callback() function. Signed-off-by: Boris Brezillon Reviewed-by: Richard Weinberger Reviewed-by: Miquel Raynal Acked-by: Bert Kenward --- Changes in v2: - Address a few coding style issues (reported by Miquel) - Remove comments that are no longer valid (reported by Miquel)

mtd: remove the get_unmapped_area method

2017-11-13T20:39:18Z

It is now unused. Signed-off-by: Nicolas Pitre Reviewed-by: Richard Weinberger Acked-by: Boris Brezillon Tested-by: Chris Brandt Signed-off-by: Richard Weinberger

mtd: mtdram: properly handle the phys argument in the point method

2017-11-13T20:39:17Z

When the phys pointer is non null, the point method is expected to return the physical address for the pointed area. In the case of the mtdram driver we have to retrieve the physical address for the corresponding vmalloc area. However, there is no guarantee that the vmalloc area is made of physically contiguous pages. In that case we simply limit retlen to the actually contiguous pages. Signed-off-by: Nicolas Pitre Reviewed-by: Richard Weinberger Acked-by: Boris Brezillon Signed-off-by: Richard Weinberger

mtd: mtdram: Add parameter for setting writebuf size

2016-03-07T21:06:27Z

ubifs uses the write buffer size in recovery algorithm. When inspecting an unclean ubifs recovery fails with writebuf size 64 in mtdram while recovery on actual mtd device with writebuf size of 1024 succeeds. So add a parameter for setting this property. Signed-off-by: Alexander Stein Reviewed-by: Richard Weinberger Signed-off-by: Brian Norris

mtd: mtdram: check offs and len in mtdram->erase

2015-10-20T01:08:33Z

We should prevent user to erasing mtd device with an unaligned offset or length. Signed-off-by: Dongsheng Yang Signed-off-by: Brian Norris

Revert "mtd: mtdram: check offs and len in mtdram->erase"

2015-09-30T00:29:17Z

This reverts commit 7827e3acad2df1c6537e5fe7211d216dabc60399. There are some 64-bit arithmetic issues on some architectures, so let's wait until we get a better patch for this. Signed-off-by: Brian Norris

mtd: mtdram: check offs and len in mtdram->erase

2015-09-29T22:43:15Z

We should prevent user to erasing mtd device with an unaligned offset or length. Signed-off-by: Dongsheng Yang Signed-off-by: Brian Norris

mtd: mtdram: add missing 'const'

2014-01-20T19:55:23Z

mtdram_init_device() wasn't updated along with mtd_partition.name. Signed-off-by: Brian Norris Cc: Geert Uytterhoeven

mtd: harmonize mtd_point interface implementation

2012-03-26T23:32:11Z

Some MTD drivers return -EINVAL if the 'phys' parameter is not NULL, trying to convey that they cannot return the physical address. However, this is not very logical because they still can return the virtual address ('virt'). But some drivers (lpddr) just ignore the 'phys' parameter instead, which is a more logical thing to do. Let's harmonize this and: 1. Always initialize 'virt' and 'phys' to 'NULL' in 'mtd_point()'. 2. Do not return an error if the physical address cannot be found. So as a result, all drivers will set 'phys' to 'NULL' if it is not supported. None of the 'mtd_point()' users use 'phys' anyway, so this should not break anything. I guess we could also just delete this parameter later. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse