Eric Lee / smarc-fsl-linux-kernel

30 Nov, 2018

1 commit

  • 5b39fc049   s390: use common bust_spinlocks() ... Browse Code »

    s390 is the only architecture that is using own bust_spinlocks()
    variant, while other arch-s seem to be OK with the common
    implementation.

    Heiko Carstens [1] said he would prefer s390 to use the common
    bust_spinlocks() as well:
    I did some code archaeology and this function is unchanged since ~17
    years. When it was introduced it was close to identical to the x86
    variant. All other architectures use the common code variant in the
    meantime. So if we change this I'd prefer that we switch s390 to the
    common code variant as well. Right now I can't see a reason for not
    doing that

    This patch removes s390 bust_spinlocks() and drops the weak attribute
    from the common bust_spinlocks() version.

    [1] lkml.kernel.org/r/20181025062800.GB4037@osiris
    Signed-off-by: Sergey Senozhatsky
    Signed-off-by: Heiko Carstens
    Signed-off-by: Martin Schwidefsky

    Sergey Senozhatsky
     

02 Nov, 2017

1 commit

  • b24413180   License cleanup: add SPDX GPL-2.0 license identifier to files with no license ... Browse Code »

    Many source files in the tree are missing licensing information, which
    makes it harder for compliance tools to determine the correct license.

    By default all files without license information are under the default
    license of the kernel, which is GPL version 2.

    Update the files which contain no license information with the 'GPL-2.0'
    SPDX license identifier. The SPDX identifier is a legally binding
    shorthand, which can be used instead of the full boiler plate text.

    This patch is based on work done by Thomas Gleixner and Kate Stewart and
    Philippe Ombredanne.

    How this work was done:

    Patches were generated and checked against linux-4.14-rc6 for a subset of
    the use cases:
    - file had no licensing information it it.
    - file was a */uapi/* one with no licensing information in it,
    - file was a */uapi/* one with existing licensing information,

    Further patches will be generated in subsequent months to fix up cases
    where non-standard license headers were used, and references to license
    had to be inferred by heuristics based on keywords.

    The analysis to determine which SPDX License Identifier to be applied to
    a file was done in a spreadsheet of side by side results from of the
    output of two independent scanners (ScanCode & Windriver) producing SPDX
    tag:value files created by Philippe Ombredanne. Philippe prepared the
    base worksheet, and did an initial spot review of a few 1000 files.

    The 4.13 kernel was the starting point of the analysis with 60,537 files
    assessed. Kate Stewart did a file by file comparison of the scanner
    results in the spreadsheet to determine which SPDX license identifier(s)
    to be applied to the file. She confirmed any determination that was not
    immediately clear with lawyers working with the Linux Foundation.

    Criteria used to select files for SPDX license identifier tagging was:
    - Files considered eligible had to be source code files.
    - Make and config files were included as candidates if they contained >5
    lines of source
    - File already had some variant of a license header in it (even if
    Reviewed-by: Philippe Ombredanne
    Reviewed-by: Thomas Gleixner
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

23 Mar, 2013

1 commit

  • dc72c32e1   printk: Provide a wake_up_klogd() off-case ... Browse Code »

    wake_up_klogd() is useless when CONFIG_PRINTK=n because neither printk()
    nor printk_sched() are in use and there are actually no waiter on
    log_wait waitqueue. It should be a stub in this case for users like
    bust_spinlocks().

    Otherwise this results in this warning when CONFIG_PRINTK=n and
    CONFIG_IRQ_WORK=n:

    kernel/built-in.o In function `wake_up_klogd':
    (.text.wake_up_klogd+0xb4): undefined reference to `irq_work_queue'

    To fix this, provide an off-case for wake_up_klogd() when
    CONFIG_PRINTK=n.

    There is much more from console_unlock() and other console related code
    in printk.c that should be moved under CONFIG_PRINTK. But for now,
    focus on a minimal fix as we passed the merged window already.

    [akpm@linux-foundation.org: include printk.h in bust_spinlocks.c]
    Signed-off-by: Frederic Weisbecker
    Reported-by: James Hogan
    Cc: James Hogan
    Cc: Steven Rostedt
    Cc: Peter Zijlstra
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Frederic Weisbecker
     

07 Jan, 2009

1 commit

  • b61312d35   oops handling: ensure that any oops is flushed to the mtdoops console ... Browse Code »

    This used to work unpatched with older kernels, during the development
    phase of mtdoops. Before commit e3e8a75d2acfc61ebf25524666a0a2c6abb0620c
    a space was printed with console_loglevel set to 15, which probably
    flushed the oops message as a side effect.

    This is another patch from the Nokia N810 kernel.

    Signed-off-by: Viktor Rosendahl
    Cc: Alan Cox
    Cc: Ingo Molnar
    Cc: David Woodhouse
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Viktor Rosendahl
     

17 Oct, 2007

1 commit

  • 004429956   handle recursive calls to bust_spinlocks() ... Browse Code »

    Various architectures may call bust_spinlocks() recursively; the function
    itself, however, doesn't appear to be meant to be called in this manner.
    Nevertheless, this doesn't appear to be a problem as long as
    bust_spinlocks(0) doesn't get called twice in a row (otherwise,
    unblank_screen() may enter the scheduler). However, at least on i386 die()
    has been capable of returning (and on other architectures this should
    really be that way, too) when notify_die() returns NOTIFY_STOP.

    Short of getting a reply to a respective query, this patch makes
    bust_spinlocks() increment/decrement oops_in_progress, and wake klogd only
    when the count drops back to zero.

    Signed-off-by: Jan Beulich
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jan Beulich
     

12 Feb, 2007

2 commits

  • e3e8a75d2   [PATCH] Extract and use wake_up_klogd() ... Browse Code »

    Remove hack with printing space to wake up klogd. Use explicit
    wake_up_klogd().

    See earlier discussion
    http://groups.google.com/group/fa.linux.kernel/browse_frm/thread/75f496668409f58d/1a8f28983a51e1ff?lnk=st&q=wake_up_klogd+group%3Afa.linux.kernel&rnum=2#1a8f28983a51e1ff

    Signed-off-by: Alexey Dobriyan
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Kirill Korotaev
     
  • cefc8be82   [PATCH] Consolidate bust_spinlocks() ... Browse Code »

    Part of long forgotten patch
    http://groups.google.com/group/fa.linux.kernel/msg/e98e941ce1cf29f6?dmode=source
    Since then, m32r grabbed two copies.

    Leave s390 copy because of important absence of CONFIG_VT, but remove
    references to non-existent timerlist_lock. ia64 also loses timerlist_lock.

    Signed-off-by: Alexey Dobriyan
    Acked-by: Martin Schwidefsky
    Cc: Andi Kleen
    Cc: "Luck, Tony"
    Cc: Hirokazu Takata
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Kirill Korotaev
     

01 Jul, 2006

1 commit

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds