mm/slab: rename CONFIG_SLAB to CONFIG_SLAB_DEPRECATED

As discussed at LSF/MM [1] [2] and with no objections raised there,
deprecate the SLAB allocator. Rename the user-visible option so that
users with CONFIG_SLAB=y get a new prompt with explanation during make
oldconfig, while make olddefconfig will just switch to SLUB.

In all defconfigs with CONFIG_SLAB=y remove the line so those also
switch to SLUB. Regressions due to the switch should be reported to
linux-mm and slab maintainers.

[1] https://lore.kernel.org/all/4b9fc9c6-b48c-198f-5f80-811a44737e5f@suse.cz/
[2] https://lwn.net/Articles/932201/

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k
Acked-by: Helge Deller <deller@gmx.de> # parisc

powerpc/configs: Update config files for removed/renamed symbols

Clean up config files by:
- removing configs that were deleted in the past
- removing configs not in tree and without recently pending patches
- adding new configs that are replacements for old configs in the file

For some detailed information, see:
https://lore.kernel.org/kernel-janitors/20220929090645.1389-1-lukas.bulwahn@gmail.com/

Renamed:
- CONFIG_PPC_PTDUMP -> CONFIG_GENERIC_PTDUMP
e084728393a5 ("powerpc/ptdump: Convert powerpc to GENERIC_PTDUMP")

Removed:
- CONFIG_BLK_DEV_CRYPTOLOOP
47e9624616c8 ("block: remove support for cryptoloop and the xor transfer")

- CONFIG_CRYPTO_RMD128
b21b9a5e0aef ("crypto: rmd128 - remove RIPE-MD 128 hash algorithm")

- CONFIG_CRYPTO_RMD256
c15d4167f0b0 ("crypto: rmd256 - remove RIPE-MD 256 hash algorithm")

- CONFIG_CRYPTO_RMD320
93f64202926f ("crypto: rmd320 - remove RIPE-MD 320 hash algorithm")

- CONFIG_CRYPTO_SALSA20
663f63ee6d9c ("crypto: salsa20 - remove Salsa20 stream cipher algorithm")

- CONFIG_CRYPTO_TGR192
87cd723f8978 ("crypto: tgr192 - remove Tiger 128/160/192 hash algorithms")

- CONFIG_HARDENED_USERCOPY_PAGESPAN
1109a5d90701 ("usercopy: Remove HARDENED_USERCOPY_PAGESPAN")

- CONFIG_RAPIDIO_TSI568, CONFIG_RAPIDIO_TSI57X
612d4904191f ("rapidio: remove not used code about RIO_VID_TUNDRA")

- CONFIG_RAW_DRIVER
603e4922f1c8 ("remove the raw driver")

- CONFIG_ROCKETPORT
3b00b6af7a5b ("tty: rocket, remove the driver")

- CONFIG_ENABLE_MUST_CHECK
196793946264 ("Compiler Attributes: remove CONFIG_ENABLE_MUST_CHECK")

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
[mpe: Add documentation of relevant commit for each symbol change]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220929101502.32527-1-lukas.bulwahn@gmail.com

powerpc/configs: Remove dead symbols

Remove references to symbols that no longer exist as reported by
scripts/checkkconfigsymbols.py.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200724131728.1643966-2-mpe@ellerman.id.au

powerpc: configs: Cleanup old Kconfig options

CONFIG_ENABLE_WARN_DEPRECATED is gone since
commit 771c035372a0 ("deprecate the '__deprecated' attribute warnings
entirely and for good").

CONFIG_IOSCHED_DEADLINE and CONFIG_IOSCHED_CFQ are gone since
commit f382fb0bcef4 ("block: remove legacy IO schedulers").

The IOSCHED_DEADLINE was replaced by MQ_IOSCHED_DEADLINE and it will be
now enabled by default (along with MQ_IOSCHED_KYBER).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200130195223.3843-1-krzk@kernel.org

powerpc/configs: remove obsolete CONFIG_INET_XFRM_MODE_* and CONFIG_INET6_XFRM_MODE_*

These Kconfig options has been removed in commit 4c145dce2601 ("xfrm:
make xfrm modes builtin") So there is no point to keep it in
defconfigs any longer.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
[mpe: Extract from cross arch patch]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190612071901.21736-1-yuehaibing@huawei.com

powerpc/configs: Remove useless UEVENT_HELPER_PATH

Remove the CONFIG_UEVENT_HELPER_PATH because:
1. It is disabled since commit 1be01d4a5714 ("driver: base: Disable
CONFIG_UEVENT_HELPER by default") as its dependency (UEVENT_HELPER) was
made default to 'n',
2. It is not recommended (help message: "This should not be used today
[...] creates a high system load") and was kept only for ancient
userland,
3. Certain userland specifically requests it to be disabled (systemd
README: "Legacy hotplug slows down the system and confuses udev").

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

mtd: rawnand: Clarify Kconfig entry MTD_NAND

MTD_NAND is large and encloses much more than what the symbol is
actually used for: raw NAND. Clarify the symbol by naming it
MTD_RAW_NAND instead.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

configs: get rid of obsolete CONFIG_ENABLE_WARN_DEPRECATED

This Kconfig option was removed during v4.19 development in commit
771c035372a0 ("deprecate the '__deprecated' attribute warnings entirely
and for good") so there's no point to keep it in defconfigs any longer.

FWIW defconfigs were patched with:
--------------------------->8----------------------
find . -name *_defconfig -exec sed -i '/CONFIG_ENABLE_WARN_DEPRECATED/d' {} \;
--------------------------->8----------------------

Link: http://lkml.kernel.org/r/20190128152434.41969-1-abrodkin@synopsys.com
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

firmware: Drop FIRMWARE_IN_KERNEL Kconfig option

It doesn't actually do anything. Merge its help text into
EXTRA_FIRMWARE.

Fixes: 5620a0d1aacd ("firmware: delete in-kernel firmware")
Fixes: 0946b2fb38fd ("firmware: cleanup FIRMWARE_IN_KERNEL message")
Signed-off-by: Benjamin Gilbert <benjamin.gilbert@coreos.com>
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

powerpc/configs: Update for CONFIG_FIXED_PHY being selected by CONFIG_OF_MDIO

In commit a5e4bd991362 ("of_mdio: select fixed phy support
unconditionally"), CONFIG_OF_MDIO began selecting CONFIG_FIXED_PHY.

That means we no longer need to set it some of our defconfigs.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

powerpc/configs: Drop no longer needed CONFIG_DEVKMEM

Since commit e334cd69fa65 ("Move CONFIG_DEVKMEM default to n") we no
longer need to set CONFIG_DEVKMEM in our defconfigs.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

powerpc/configs: Explicitly drop CONFIG_INPUT_MOUSEDEV

In commit 73d8ef76006b ("Input: mousedev - stop offering PS/2 to userspace by
default") (Jan 2017), CONFIG_INPUT_MOUSEDEV was switched from default y to
default n, with the explanation:

Evdev interface has been available for many years and by now everyone
is switched to using it, so let's stop offering /dev/input/mouseN
and /dev/psaux by default.

We had a number of configs which had it enabled, but going by the above
explanation probably don't need it enabled anymore.

So drop the last remnants of it from our defconfigs.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

powerpc/configs: Drop unneeded CONFIG_CRYPTO_ANSI_CPRNG

Since commit 401e4238f35c ("crypto: rng - Make DRBG the default RNG") we no longer need to set CONFIG_CRYPTO_ANSI_CPRNG in our defconfigs.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

powerpc/configs: Update for symbol movement only

Update defconfigs for symbols that have moved around, without their
value changing.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

powerpc/configs: Remove old symbols from defconfigs

Update defconfigs to remove old symbols and comments referencing old
symbols.

Dropped:

* AVERAGE
* INET_LRO
* EXT3_DEFAULTS_TO_ORDERED
* EXT3_FS_XATTR
* I2O
* INFINIBAND_AMSO1100
* INFINIBAND_EHCA
* IP1000

Replaced:

* BLK_DEV_XIP -> BLK_DEV_RAM_DAX
* CLK_PPC_CORENET -> CLK_QORIQ
* EXT2_FS_XIP -> FS_DAX
* EXT3_FS* -> EXT4_FS*

Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

powerpc/512x: add LocalPlus Bus FIFO device driver

This driver for Freescale MPC512x LocalPlus Bus FIFO (called SCLPC
in the Reference Manual) allows Direct Memory Access transfers
between RAM and peripheral devices on LocalPlus Bus.

Signed-off-by: Alexander Popov <alex.popov@linux.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>

powerpc: Update all configs using savedefconfig

It looks like it's ~4 years since we updated some of these, so do a bulk
update.

Verified that the before and after generated configs are exactly the
same.

Which begs the question why update them? The answer is that it can be
confusing when the stored defconfig drifts too far from the generated
result.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

powerpc/mpc512x: enable USB support in defconfig

Enable USB EHCI, mass storage and USB gadget support.

Signed-off-by: Anatolij Gustschin <agust@denx.de>

powerpc/mpc512x: commit re-generated defconfig

This patch does not change the content, it merely re-orders
configuration items and drops explicit options which already
apply as the default.

Signed-off-by: Gerhard Sittig <gsi@denx.de>
Signed-off-by: Anatolij Gustschin <agust@denx.de>

powerpc/512x: move mpc5121_generic platform to mpc512x_generic.

This provides a base for using 512x_generic platform on mpc5125 boards.

By this way 512x_GENERIC it could be used for all generic mpc512x boards
and kernel could be compiled with mpc512x_defconfig.

Signed-off-by: Matteo Facchinetti <matteo.facchinetti@sirius-es.it>
[agust: applied s/mpc5121/mpc512x in mpc512x_generic.c]
Signed-off-by: Anatolij Gustschin <agust@denx.de>

powerpc: update 512x-defconfig

Activate all MPC512x related boards. Also enable GPIO-driver, SPI driver
and at25 to test SPI. Enable DEVTMPFS. Bump to 3.1-rc6.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anatolij Gustschin <agust@denx.de>

powerpc: Restore some misc devices to our configs

Uwe Kleine-König reported:

while working on an defconfig (arm/mx27) I noticed that just updating
it[1] results in removing CONFIG_EEPROM_AT24=y. The reason is that
since commit

v2.6.36-5965-g5f2365d (misc devices: do not enable by default)

MISC_DEVICES isn't enabled anymore by default. So all defconfigs that
have CONFIG_SOME_SYMBOL=y (or =m) (with SOME_SYMBOL depending on
MISC_DEVICES) but not CONFIG_MISC_DEVICES=y suffer from the same
problem.

This restores those misc devices to the powerpc defconfigs.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Uwe Kleine-König
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

powerpc: Trim defconfigs

This trims all our defconfigs using make savedefconfig

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

powerpc: Disable CONFIG_SYSFS_DEPRECATED

Acked-by: Grant Likely <grant.likely@secretlab.ca>

On 5 May 2010 21:33, "Anton Blanchard" <anton@samba.org> wrote:

CONFIG_SYSFS_DEPRECATED can cause issues with newer distros and should not
be required for any distro in the last 3 or 4 years, so disable it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

powerpc/mpc5121: Add default config for MPC5121

Signed-off-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Detlev Zundel <dzu@denx.de>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>