arch/*/configs/*defconfig: Replace AUTOFS4_FS by AUTOFS_FS

Commit a2225d931f75 ("autofs: remove left-over autofs4 stubs")
promised the removal of the fs/autofs/Kconfig fragment for AUTOFS4_FS
within a couple of releases, but five years later this still has not
happened yet, and AUTOFS4_FS is still enabled in 63 defconfigs.

Get rid of it mechanically:

git grep -l CONFIG_AUTOFS4_FS -- '*defconfig' |
xargs sed -i 's/AUTOFS4_FS/AUTOFS_FS/'

Also just remove the AUTOFS4_FS config option stub. Anybody who hasn't
regenerated their config file in the last five years will need to just
get the new name right when they do.

Signed-off-by: Sven Joachim <svenjoac@gmx.de>
Acked-by: Ian Kent <raven@themaw.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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/64s: Default to 64K pages for 64 bit book3s

For 64-bit book3s the default should be 64K as that's what modern CPUs
are designed for.

The following defconfigs already set CONFIG_PPC_64K_PAGES:

cell_defconfig
pasemi_defconfig
powernv_defconfig
ppc64_defconfig
pseries_defconfig
skiroot_defconfig

The have the option removed from the defconfig, as it is now the
default.

The defconfigs that now need to set CONFIG_PPC_4K_PAGES to maintain
their existing behaviour are:

g5_defconfig
maple_defconfig
microwatt_defconfig
ps3_defconfig

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
BugLink: https://github.com/linuxppc/issues/issues/109
Link: https://lore.kernel.org/r/20211015001649.45591-1-joel@jms.id.au

arch: powerpc: Stop building and using oprofile

The "oprofile" user-space tools don't use the kernel OPROFILE support
any more, and haven't in a long time. User-space has been converted to
the perf interfaces.

This commits stops building oprofile for powerpc and removes any
reference to it from directories in arch/powerpc/ apart from
arch/powerpc/oprofile, which will be removed in the next commit (this is
broken into two commits as the size of the commit became very big, ~5k
lines).

Note that the member "oprofile_cpu_type" in "struct cpu_spec" isn't
removed as it was also used by other parts of the code.

Suggested-by: Christoph Hellwig <hch@infradead.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Robert Richter <rric@kernel.org>
Acked-by: William Cohen <wcohen@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Thomas Gleixner <tglx@linutronix.de>

vgacon: remove software scrollback support

Yunhai Zhang recently fixed a VGA software scrollback bug in commit
ebfdfeeae8c0 ("vgacon: Fix for missing check in scrollback handling"),
but that then made people look more closely at some of this code, and
there were more problems on the vgacon side, but also the fbcon software
scrollback.

We don't really have anybody who maintains this code - probably because
nobody actually _uses_ it any more. Sure, people still use both VGA and
the framebuffer consoles, but they are no longer the main user
interfaces to the kernel, and haven't been for decades, so these kinds
of extra features end up bitrotting and not really being used.

So rather than try to maintain a likely unused set of code, I'll just
aggressively remove it, and see if anybody even notices. Maybe there
are people who haven't jumped on the whole GUI badnwagon yet, and think
it's just a fad. And maybe those people use the scrollback code.

If that turns out to be the case, we can resurrect this again, once
we've found the sucker^Wmaintainer for it who actually uses it.

Reported-by: NopNop Nop <nopitydays@gmail.com>
Tested-by: Willy Tarreau <w@1wt.eu>
Cc: 张云海 <zhangyunhai@nsfocus.com>
Acked-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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

scsi: sr: remove references to BLK_DEV_SR_VENDOR, leave it enabled

This kernel configuration is basically enabling/disabling sr driver quirks
detection. While these quirks are for fairly rare devices (very old CD
burners, and a glucometer), the additional detection of these models is a
very minimal amount of code.

The logic behind the quirks is always built into the sr driver.

This also removes the config from all the defconfig files that are enabling
this already.

Link: https://lore.kernel.org/r/20200223191144.726-1-flameeyes@flameeyes.com
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.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>

powerpc/configs: Update for CONFIG_SND changes

Commit eb3b705aaed9 ("ALSA: Make CONFIG_SND_OSSEMUL user-selectable")
means we need to set CONFIG_SND_OSSEMUL in our configs, otherwise we
lose some of the SND symbols.

And commit 0181307abc1d ("ALSA: seq: Reorganize kconfig and build")
reorganised things, which causes the churn.

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

powerpc/configs: Add CONFIG_RAS now required for CONFIG_EDAC

In commit e3c4ff6d8c94 ("EDAC: Remove EDAC_MM_EDAC") CONFIG_EDAC grew
a dependency on CONFIG_RAS. Some of our defconfigs don't have the
latter, which means we lose CONFIG_EDAC, so add CONFIG_RAS to fix
that.

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

powerpc/configs: Drop no longer needed CONFIG_CRYPTO_SHA256

Since commit 826775bbf38f ("crypto: drbg - Add select on sha256") we
no longer need to set CONFIG_CRYPTO_SHA256 in our defconfigs.

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

powerpc/configs: Update for CONFIG_DEBUG_FS being selected via CONFIG_RCU_TRACE

In commit 961518259b3b ("rcu: Enable RCU tracepoints by default to aid
in debugging"), CONFIG_RCU_TRACE was made default y (if CONFIG_TREE_RCU=y,
which it is for some of our configs).

That in turn causes CONFIG_TREE_RCU_TRACE to be enabled, which selects
CONFIG_DEBUG_FS. The end result is that CONFIG_DEBUG_FS is forced on,
meaning we don't have to enable it in some of our configs.

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

powerpc/configs: Drop no longer needed CONFIG_FHANDLE

Since commit f76be61755c5 ("Make CONFIG_FHANDLE default y") we no
longer need to set CONFIG_FHANDLE in 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>

EDAC: Remove EDAC_MM_EDAC

Move all the EDAC core functionality behind CONFIG_EDAC and get rid of
that indirection. Update defconfigs which had it.

While at it, fix dependencies such that EDAC depends on RAS for the
tracepoints.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: linux-edac@vger.kernel.org

powerpc: disable IDE subsystem in pasemi_defconfig

This patch disables deprecated IDE subsystem in pasemi_defconfig
(no IDE host drivers are selected in this config so there is no valid
reason to enable IDE subsystem itself).

Cc: Olof Johansson <olof@lixom.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

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: 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: Don't build powernv for other platform defconfigs

Because powernv arrived after these other platforms, the defconfigs
didn't have PPC_POWERNV disabled, and being default y it gets turned on.

If we're going to bother having defconfigs for the specific platforms
then they should only build the code required for those platforms.

The grab bag of everything config is ppc64_defconfig.

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

powerpc: Make CONFIG_FHANDLE=y for all 64 bit powerpc defconfigs

CONFIG_FHANDLE is a requirement for systemd and with the increasing
uptake of systemd within distros it makes sense for 64 bit defconfigs
to include it.

Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>

powerpc/pasemi: Turn on devtmpfs in defconfig

At least some distros expect it these days; turn it on. Also, random
churn from doing a savedefconfig for the first time in a year or so.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

cputime: Generic on-demand virtual cputime accounting

If we want to stop the tick further idle, we need to be
able to account the cputime without using the tick.

Virtual based cputime accounting solves that problem by
hooking into kernel/user boundaries.

However implementing CONFIG_VIRT_CPU_ACCOUNTING require
low level hooks and involves more overhead. But we already
have a generic context tracking subsystem that is required
for RCU needs by archs which plan to shut down the tick
outside idle.

This patch implements a generic virtual based cputime
accounting that relies on these generic kernel/user hooks.

There are some upsides of doing this:

- This requires no arch code to implement CONFIG_VIRT_CPU_ACCOUNTING
if context tracking is already built (already necessary for RCU in full
tickless mode).

- We can rely on the generic context tracking subsystem to dynamically
(de)activate the hooks, so that we can switch anytime between virtual
and tick based accounting. This way we don't have the overhead
of the virtual accounting when the tick is running periodically.

And one downside:

- There is probably more overhead than a native virtual based cputime
accounting. But this relies on hooks that are already set anyway.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>

powerpc/pasemi: Enable PRINTK_TIME in defconfig

Enable PRINTK_TIME in pasemi_defconfig. Also regenerate it, it seems
that a lot of options have moved around since last time savedefconfig
was ran on it.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

powerpc: Remove CONFIG_POWER4_ONLY

Remove CONFIG_POWER4_ONLY, the option is badly named and only does two
things:

- It wraps the MMU segment table code. With feature fixups there is
little downside to compiling this in.

- It uses the newer mtocrf instruction in various assembly functions.
Instead of making this a compile option just do it at runtime via
a feature fixup.

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

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: pasemi_defconfig update

pasemi_defconfig hasn't been updated for a year.

Mostly a refresh of defaults, but this also disables 64K pages.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

powerpc: pasemi_defconfig update

pasemi_defconfig hasn't been updated for a year.

Mostly a refresh of defaults, but this also disables 64K pages.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

eeprom: More consistent symbol names

Now that all EEPROM drivers live in the same place, let's harmonize
their symbol names.

Also fix eeprom's dependencies, it definitely needs sysfs, and is no
longer experimental after many years in the kernel tree.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: David Brownell <dbrownell@users.sourceforge.net>

[POWERPC] pasemi: update pasemi_defconfig, enable electra_cf

Refresh pasemi_defconfig and enable ELECTRA_CF=y.

Signed-off-by: Olof Johansson <olof@lixom.net>

[POWERPC] update pasemi_defconfig

Disable GEN_RTC since it conflicts with the i2c rtc drivers registering,
besides that keep most of the new defaults.

Signed-off-by: Olof Johansson <olof@lixom.net>

[POWERPC] pasemi: Move electra-ide to pata_of_platform

Move electra-ide glue over to the new pata_of_platform framework, and
add the quirks needed to that driver.

Signed-off-by: Olof Johansson <olof@lixom.net>

[POWERPC] Enable CONFIG_PCI_MSI and CONFIG_MD in pasemi_defconfig

Enable MSI now that we have an implementation, and enable CONFIG_MD and
the raid options by default as well.

Signed-off-by: Olof Johansson <olof@lixom.net>

[POWERPC] Update defconfigs

This updates all the defconfigs in arch/powerpc/configs except iseries
and ps3, which were updated by the preceding commits.

This mostly takes the defaults, except that I turned on tickless idle
and high-resolution timers for everything, and turned off instrumentation
support and "Fair group CPU scheduler" for the smaller/embedded platforms.

Signed-off-by: Paul Mackerras <paulus@samba.org>

[POWERPC] pasemi: Update defconfig

Update pasemi_defconfig. Add a few missing options for default devices
on electra boards, enable tickless and hrtimers, etc, etc.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>

[POWERPC] Enable SLUB in *_defconfig

When checking out the new NO_HZ support in powerpc, I noticed we never
slept for more than 2 seconds. It turns out SLAB has a 2 second per cpu
timer that causes this.

After switching to SLUB I see some nice 4 second sleeps which is the
limit on this POWER6 box (the decrementer ticks at 512MHz):

slept 4.19 sec
slept 4.19 sec
slept 4.19 sec
slept 4.19 sec
slept 3.96 sec
slept 3.80 sec
slept 2.99 sec

Since SLUB is now the default and some powerpc defconfigs already enable
it, lets enable SLUB across the board for consistency. While doing this
I also noticed that the maple defconfig has SLAB debugging enabled which
is sure to make your box nice and slow. Fix that too.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

[POWERPC] Update defconfigs

Signed-off-by: Paul Mackerras <paulus@samba.org>

[POWERPC] Update defconfigs

Signed-off-by: Paul Mackerras <paulus@samba.org>

[POWERPC] Update pasemi_defconfig

Update pasemi_defconfig, add new relevant drivers. Take out
CONFIG_PPC_PSERIES, it should't have been enabled in the first place.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>

[POWERPC] pasemi: defconfig

Base pasemi defconfig. Nothing special, just the native drivers plus
common PCI-express/PCI cards.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>