Eric Lee / smarc-fsl-linux-kernel

27 Apr, 2020

1 commit

  • 32927393d   sysctl: pass kernel pointers to ->proc_handler ... Browse Code »

    Instead of having all the sysctl handlers deal with user pointers, which
    is rather hairy in terms of the BPF interaction, copy the input to and
    from userspace in common code. This also means that the strings are
    always NUL-terminated by the common code, making the API a little bit
    safer.

    As most handler just pass through the data to one of the common handlers
    a lot of the changes are mechnical.

    Signed-off-by: Christoph Hellwig
    Acked-by: Andrey Ignatov
    Signed-off-by: Al Viro

    Christoph Hellwig
     

05 Jun, 2019

1 commit

  • b886d83c5   treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 ... Browse Code »

    Based on 1 normalized pattern(s):

    this program is free software you can redistribute it and or modify
    it under the terms of the gnu general public license as published by
    the free software foundation version 2 of the license

    extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-only

    has been chosen to replace the boilerplate/reference in 315 file(s).

    Signed-off-by: Thomas Gleixner
    Reviewed-by: Allison Randal
    Reviewed-by: Armijn Hemel
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

11 Aug, 2018

1 commit

  • 42a0cc347   sys: don't hold uts_sem while accessing userspace memory ... Browse Code »

    Holding uts_sem as a writer while accessing userspace memory allows a
    namespace admin to stall all processes that attempt to take uts_sem.
    Instead, move data through stack buffers and don't access userspace memory
    while uts_sem is held.

    Cc: stable@vger.kernel.org
    Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
    Signed-off-by: Jann Horn
    Signed-off-by: Eric W. Biederman

    Jann Horn
     

03 Mar, 2017

1 commit

07 Jun, 2014

1 commit

05 Jun, 2014

1 commit

28 Feb, 2013

1 commit

07 Nov, 2011

1 commit

  • 32aaeffbd   Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux ... Browse Code »

    * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
    Revert "tracing: Include module.h in define_trace.h"
    irq: don't put module.h into irq.h for tracking irqgen modules.
    bluetooth: macroize two small inlines to avoid module.h
    ip_vs.h: fix implicit use of module_get/module_put from module.h
    nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
    include: replace linux/module.h with "struct module" wherever possible
    include: convert various register fcns to macros to avoid include chaining
    crypto.h: remove unused crypto_tfm_alg_modname() inline
    uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
    pm_runtime.h: explicitly requires notifier.h
    linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
    miscdevice.h: fix up implicit use of lists and types
    stop_machine.h: fix implicit use of smp.h for smp_processor_id
    of: fix implicit use of errno.h in include/linux/of.h
    of_platform.h: delete needless include
    acpi: remove module.h include from platform/aclinux.h
    miscdevice.h: delete unnecessary inclusion of module.h
    device_cgroup.h: delete needless include
    net: sch_generic remove redundant use of
    net: inet_timewait_sock doesnt need
    ...

    Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in
    - drivers/media/dvb/frontends/dibx000_common.c
    - drivers/media/video/{mt9m111.c,ov6650.c}
    - drivers/mfd/ab3550-core.c
    - include/linux/dmaengine.h

    Linus Torvalds
     

03 Nov, 2011

1 commit

  • f1ecf0685   sysctl: add support for poll() ... Browse Code »

    Adding support for poll() in sysctl fs allows userspace to receive
    notifications of changes in sysctl entries. This adds a infrastructure to
    allow files in sysctl fs to be pollable and implements it for hostname and
    domainname.

    [akpm@linux-foundation.org: s/declare/define/ for definitions]
    Signed-off-by: Lucas De Marchi
    Cc: Greg KH
    Cc: Kay Sievers
    Cc: Al Viro
    Cc: "Eric W. Biederman"
    Cc: Alexey Dobriyan
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Lucas De Marchi
     

31 Oct, 2011

1 commit

  • 9984de1a5   kernel: Map most files to use export.h instead of module.h ... Browse Code »

    The changed files were only including linux/module.h for the
    EXPORT_SYMBOL infrastructure, and nothing else. Revector them
    onto the isolated export header for faster compile times.

    Nothing to see here but a whole lot of instances of:

    -#include
    +#include

    This commit is only changing the kernel dir; next targets
    will probably be mm, fs, the arch dirs, etc.

    Signed-off-by: Paul Gortmaker

    Paul Gortmaker
     

12 Nov, 2009

1 commit

24 Sep, 2009

1 commit

  • 8d65af789   sysctl: remove "struct file *" argument of ->proc_handler ... Browse Code »

    It's unused.

    It isn't needed -- read or write flag is already passed and sysctl
    shouldn't care about the rest.

    It _was_ used in two places at arch/frv for some reason.

    Signed-off-by: Alexey Dobriyan
    Cc: David Howells
    Cc: "Eric W. Biederman"
    Cc: Al Viro
    Cc: Ralf Baechle
    Cc: Martin Schwidefsky
    Cc: Ingo Molnar
    Cc: "David S. Miller"
    Cc: James Morris
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

03 Apr, 2009

1 commit

17 Oct, 2008

1 commit

  • f221e726b   sysctl: simplify ->strategy ... Browse Code »

    name and nlen parameters passed to ->strategy hook are unused, remove
    them. In general ->strategy hook should know what it's doing, and don't
    do something tricky for which, say, pointer to original userspace array
    may be needed (name).

    Signed-off-by: Alexey Dobriyan
    Acked-by: David S. Miller [ networking bits ]
    Cc: Ralf Baechle
    Cc: David Howells
    Cc: Matt Mackall
    Cc: "Eric W. Biederman"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

24 Aug, 2008

1 commit

30 Nov, 2007

1 commit

  • 32df81cbd   Isolate the UTS namespace's domainname and hostname back ... Browse Code »

    Commit 7d69a1f4a72b18876c99c697692b78339d491568 ("remove CONFIG_UTS_NS
    and CONFIG_IPC_NS") by Cedric Le Goater accidentally removed the code
    that prevented the uts->hostname and uts->domainname values from being
    overwritten from another namespace.

    In other words, setting hostname/domainname via sysfs (echo xxx >
    /proc/sys/kernel/(host|domain)name) cased the new value to be set in
    init UTS namespace only.

    Return the isolation back.

    Signed-off-by: Pavel Emelyanov
    Acked-by: Cedric Le Goater
    Acked-by: Serge Hallyn
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Pavel Emelyanov
     

17 Jul, 2007

1 commit

  • 7d69a1f4a   remove CONFIG_UTS_NS and CONFIG_IPC_NS ... Browse Code »

    CONFIG_UTS_NS and CONFIG_IPC_NS have very little value as they only
    deactivate the unshare of the uts and ipc namespaces and do not improve
    performance.

    Signed-off-by: Cedric Le Goater
    Acked-by: "Serge E. Hallyn"
    Cc: Eric W. Biederman
    Cc: Herbert Poetzl
    Cc: Pavel Emelianov
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Cedric Le Goater
     

15 Feb, 2007

2 commits

  • 0b4d41471   [PATCH] sysctl: remove insert_at_head from register_sysctl ... Browse Code »

    The semantic effect of insert_at_head is that it would allow new registered
    sysctl entries to override existing sysctl entries of the same name. Which is
    pain for caching and the proc interface never implemented.

    I have done an audit and discovered that none of the current users of
    register_sysctl care as (excpet for directories) they do not register
    duplicate sysctl entries.

    So this patch simply removes the support for overriding existing entries in
    the sys_sysctl interface since no one uses it or cares and it makes future
    enhancments harder.

    Signed-off-by: Eric W. Biederman
    Acked-by: Ralf Baechle
    Acked-by: Martin Schwidefsky
    Cc: Russell King
    Cc: David Howells
    Cc: "Luck, Tony"
    Cc: Ralf Baechle
    Cc: Paul Mackerras
    Cc: Martin Schwidefsky
    Cc: Andi Kleen
    Cc: Jens Axboe
    Cc: Corey Minyard
    Cc: Neil Brown
    Cc: "John W. Linville"
    Cc: James Bottomley
    Cc: Jan Kara
    Cc: Trond Myklebust
    Cc: Mark Fasheh
    Cc: David Chinner
    Cc: "David S. Miller"
    Cc: Patrick McHardy
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Eric W. Biederman
     
  • 39732acd9   [PATCH] sysctl: move utsname sysctls to their own file ... Browse Code »

    This is just a simple cleanup to keep kernel/sysctl.c from getting to crowded
    with special cases, and by keeping all of the utsname logic to together it
    makes the code a little more readable.

    Signed-off-by: Eric W. Biederman
    Cc: Serge E. Hallyn
    Cc: Herbert Poetzl
    Cc: Kirill Korotaev
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Eric W. Biederman