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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 <[email protected]>
Acked-by: Ian Kent <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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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/[email protected]/
[2] https://lwn.net/Articles/932201/
Signed-off-by: Vlastimil Babka <[email protected]>
Acked-by: Hyeonggon Yoo <[email protected]>
Acked-by: David Rientjes <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]> # m68k
Acked-by: Helge Deller <[email protected]> # parisc
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Patch series "drivers/char: remove /dev/kmem for good".
Exploring /dev/kmem and /dev/mem in the context of memory hot(un)plug and
memory ballooning, I started questioning the existence of /dev/kmem.
Comparing it with the /proc/kcore implementation, it does not seem to be
able to deal with things like
a) Pages unmapped from the direct mapping (e.g., to be used by secretmem)
-> kern_addr_valid(). virt_addr_valid() is not sufficient.
b) Special cases like gart aperture memory that is not to be touched
-> mem_pfn_is_ram()
Unless I am missing something, it's at least broken in some cases and might
fault/crash the machine.
Looks like its existence has been questioned before in 2005 and 2010 [1],
after ~11 additional years, it might make sense to revive the discussion.
CONFIG_DEVKMEM is only enabled in a single defconfig (on purpose or by
mistake?). All distributions disable it: in Ubuntu it has been disabled
for more than 10 years, in Debian since 2.6.31, in Fedora at least
starting with FC3, in RHEL starting with RHEL4, in SUSE starting from
15sp2, and OpenSUSE has it disabled as well.
1) /dev/kmem was popular for rootkits [2] before it got disabled
basically everywhere. Ubuntu documents [3] "There is no modern user of
/dev/kmem any more beyond attackers using it to load kernel rootkits.".
RHEL documents in a BZ [5] "it served no practical purpose other than to
serve as a potential security problem or to enable binary module drivers
to access structures/functions they shouldn't be touching"
2) /proc/kcore is a decent interface to have a controlled way to read
kernel memory for debugging puposes. (will need some extensions to
deal with memory offlining/unplug, memory ballooning, and poisoned
pages, though)
3) It might be useful for corner case debugging [1]. KDB/KGDB might be a
better fit, especially, to write random memory; harder to shoot
yourself into the foot.
4) "Kernel Memory Editor" [4] hasn't seen any updates since 2000 and seems
to be incompatible with 64bit [1]. For educational purposes,
/proc/kcore might be used to monitor value updates -- or older
kernels can be used.
5) It's broken on arm64, and therefore, completely disabled there.
Looks like it's essentially unused and has been replaced by better
suited interfaces for individual tasks (/proc/kcore, KDB/KGDB). Let's
just remove it.
[1] https://lwn.net/Articles/147901/
[2] https://www.linuxjournal.com/article/10505
[3] https://wiki.ubuntu.com/Security/Features#A.2Fdev.2Fkmem_disabled
[4] https://sourceforge.net/projects/kme/
[5] https://bugzilla.redhat.com/show_bug.cgi?id=154796
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: David Hildenbrand <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Acked-by: Kees Cook <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: "Alexander A. Klimov" <[email protected]>
Cc: Alexander Viro <[email protected]>
Cc: Alexandre Belloni <[email protected]>
Cc: Andrew Lunn <[email protected]>
Cc: Andrey Zhizhikin <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Brian Cain <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Christophe Leroy <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: Corentin Labbe <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Gerald Schaefer <[email protected]>
Cc: Greentime Hu <[email protected]>
Cc: Gregory Clement <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Hillf Danton <[email protected]>
Cc: huang ying <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Ivan Kokshaysky <[email protected]>
Cc: "James E.J. Bottomley" <[email protected]>
Cc: James Troup <[email protected]>
Cc: Jiaxun Yang <[email protected]>
Cc: Jonas Bonn <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Kairui Song <[email protected]>
Cc: Krzysztof Kozlowski <[email protected]>
Cc: Kuninori Morimoto <[email protected]>
Cc: Liviu Dudau <[email protected]>
Cc: Lorenzo Pieralisi <[email protected]>
Cc: Luc Van Oostenryck <[email protected]>
Cc: Luis Chamberlain <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Mike Rapoport <[email protected]>
Cc: Mikulas Patocka <[email protected]>
Cc: Minchan Kim <[email protected]>
Cc: Niklas Schnelle <[email protected]>
Cc: Oleksiy Avramchenko <[email protected]>
Cc: [email protected]
Cc: Palmer Dabbelt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: "Pavel Machek (CIP)" <[email protected]>
Cc: Pavel Machek <[email protected]>
Cc: "Peter Zijlstra (Intel)" <[email protected]>
Cc: Pierre Morel <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Robert Richter <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Russell King <[email protected]>
Cc: Sam Ravnborg <[email protected]>
Cc: Sebastian Andrzej Siewior <[email protected]>
Cc: Sebastian Hesselbarth <[email protected]>
Cc: [email protected]
Cc: Stafford Horne <[email protected]>
Cc: Stefan Kristiansson <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Sudeep Holla <[email protected]>
Cc: Theodore Dubois <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: Viresh Kumar <[email protected]>
Cc: William Cohen <[email protected]>
Cc: Xiaoming Ni <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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After my patch there is CONFIG_ATA defined twice.
Remove the duplicate one.
Same problem for CONFIG_HAPPYMEAL, except I added as builtin for boot
test with NFS.
Reported-by: Stephen Rothwell <[email protected]>
Fixes: a57cdeb369ef ("sparc: sparc64_defconfig: add necessary configs for qemu")
Signed-off-by: Corentin Labbe <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Pull sparc updates from David Miller:
"A host of mall cleanups and adjustments that have accumulated while I
was away, nothing major"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: (26 commits)
sparc: make xchg() into a statement expression
sparc64: Use arch_validate_flags() to validate ADI flag
sparc32: Fix comparing pointer to 0 coccicheck warning
sparc: fix led.c driver when PROC_FS is not enabled
sparc: Fix handling of page table constructor failure
sparc64: only select COMPAT_BINFMT_ELF if BINFMT_ELF is set
tty: hvcs: Drop unnecessary if block
tty: vcc: Drop unnecessary if block
tty: vcc: Drop impossible to hit WARN_ON
sparc: sparc64_defconfig: add necessary configs for qemu
sparc64: switch defconfig from the legacy ide driver to libata
sparc32: Preserve clone syscall flags argument for restarts due to signals
sparc32: Limit memblock allocation to low memory
sparc: Replace test_ti_thread_flag() with test_tsk_thread_flag()
sbus: char: Remove meaningless jump label out_free
sparc32: signal: Fix stack trampoline for RT signals
sparc: remove SA_STATIC_ALLOC macro definition
sparc: use for_each_child_of_node() macro
sparc: Use fallthrough pseudo-keyword
sparc32: srmmu: improve type safety of __nocache_fix()
...
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The sparc64 qemu machines uses sunhme network hardware by default, so for
simple NFS boot testing using qemu, having CONFIG_HAPPYMEAL is useful.
And so we need also IP_PNP_DHCP for NFS boot.
For the same reason we need to enable its storage which is a PATA_CMD64.
And finally, we need CONFIG_DEVTMPFS for handling recent udev/systemd.
All those options will permit to enable boot testing in both kernelCI
and gentoo's kernelCI.
Signed-off-by: Corentin Labbe <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Replace the ide options with the equivalent libata options. This has
been carried by various downstreams like the linux-build-test repo
for years already.
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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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.
Remove the old oprofile's architecture specific support.
Suggested-by: Christoph Hellwig <[email protected]>
Suggested-by: Linus Torvalds <[email protected]>
Signed-off-by: Viresh Kumar <[email protected]>
Acked-by: Robert Richter <[email protected]>
Acked-by: William Cohen <[email protected]>
Acked-by: Al Viro <[email protected]>
Acked-by: Thomas Gleixner <[email protected]>
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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/[email protected]
Reviewed-by: Jens Axboe <[email protected]>
Signed-off-by: Diego Elio Pettenò <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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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 <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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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/[email protected]
Signed-off-by: Alexey Brodkin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Enables the Virtual Console Concentrator (VCC) module
in linux kernel
Signed-off-by: Jagannathan Raman <[email protected]>
Reviewed-by: Liam Merwick <[email protected]>
Reviewed-by: Shannon Nelson <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Remove old, dead Kconfig options (in order appearing in this commit):
- EXPERIMENTAL is gone since v3.9;
- INET_LRO: commit 7bbf3cae65b6 ("ipv4: Remove inet_lro library");
- AUTOFS_FS: commit 561c5cf9236a ("staging: Remove autofs3");
- RCU_CPU_STALL_DETECTOR: commit a00e0d714fbd ("rcu: Remove conditional
compilation for RCU CPU stall warnings");
- USB_DEVICE_CLASS: commit 007bab91324e ("USB: remove
CONFIG_USB_DEVICE_CLASS");
- SYSCTL_SYSCALL_CHECK: commit 7c60c48f58a7 ("sysctl: Improve the
sysctl sanity checks");
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Acked-by: David S. Miller <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: Eric Saint Etienne <[email protected]>
Signed-off-by: Allen Pais <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Option is long gone, see
5d9efa7ee99e ("ipv6: Remove privacy config option.")
Signed-off-by: Borislav Petkov <[email protected]>
Cc: [email protected]
Signed-off-by: David S. Miller <[email protected]>
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Add ldmvsw.c driver
Details:
The ldmvsw driver very closely follows the sunvnet.c code and makes
use of the sunvnet_common.c code for core functionality.
A significant difference between sunvnet and ldmvsw driver is
sunvnet creates a network interface for each vnet-port *parent*
node in the MD while the ldmvsw driver creates a network interface
for every vsw-port node in the Machine Description (MD).
Therefore the netdev_priv() for sunvnet is a vnet structure while
the netdev_priv() for ldmvsw is a vnet_port structure.
Vnet_port structures allocated by ldmvsw have the vsw bit set.
When finding the net_device associated with a port, the common code keys
off this bit to use either the net_device found in the vnet_port or the
net_device in the vnet structure (see the VNET_PORT_TO_NET_DEVICE() macro in
sunvnet_common.h). This scheme allows the common code to work with
both drivers with minimal changes.
Similar to Xen, network interfaces created by the ldmvsw driver will always
have a HW Addr (i.e. mac address) of FE:FF:FF:FF:FF:FF and each will be
assigned the devname "vif<cfg_handle>.<port_id>" - where <cfg_handle> and
<port_id> are a unique handle/port pair assigned to the associated
vsw-port node in the MD.
Signed-off-by: Aaron Young <[email protected]>
Signed-off-by: Rashmi Narasimhan <[email protected]>
Reviewed-by: Sowmini Varadhan <[email protected]>
Reviewed-by: Alexandre Chartre <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Commit 5d6be6a5 ("scsi_netlink : Make SCSI_NETLINK dependent on NET
instead of selecting NET") removed what happened to be the only instance
of 'select NET'. Defconfigs that were relying on the select now lack
networking support.
Reported-by: Stephen Rothwell <[email protected]>
Cc: [email protected]
Signed-off-by: Michal Marek <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Renaming remaining PERF_COUNTERS options into PERF_EVENTS.
Think we can get rid of PERF_COUNTERS now.
Signed-off-by: Robert Richter <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
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Use the defconfig files generated by "make savedefconfig" for
remaining defconfig files.
Signed-off-by: Sam Ravnborg <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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Move from SLUB to SLAB, as this is what the world plans to align
to, every distribution enables, and thus is what everyone actually
is testing.
Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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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 <[email protected]>
Acked-by: Wolfram Sang <[email protected]>
Cc: David Brownell <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
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To unify Makefile for sparc and sparc64 a few other steps was needed:
1) separate defconfig files for sparc and sparc64 is required,
so locate these in arch/sparc/configs
2) removoval of hack in toplevel Makefile to deal with that
headers was in a separate directory compared to the rest
The unification of the Makefile required usage of several
foo-$(CONFIG_SPARCnn) +=
due to a few directories pending unification.
This will be cleaned up when we unify the remaining directories.
Included in this patch are the deletion of a few files in
sparc64 as they are no longer needed: Makefile + Kconfig.
arch/sparc64/ will after this patch is applied only
have four directories (prom, lib, kernel, boot)
Signed-off-by: Sam Ravnborg <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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