Eric Lee / smarc-fsl-linux-kernel

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
     

01 Apr, 2015

2 commits

  • f8fd30ebd   MIPS: Hibernate: Restructure files and functions ... Browse Code »

    This patch has no functional changes, it just to keep the assembler
    code to a minimum. Files and functions naming is borrowed from X86.

    Signed-off-by: Huacai Chen
    Cc: Steven J. Hill
    Cc: linux-mips@linux-mips.org
    Cc: Fuxin Zhang
    Cc: Zhangjin Wu
    Patchwork: https://patchwork.linux-mips.org/patch/9616/
    Signed-off-by: Ralf Baechle

    Huacai Chen
     
  • 2a21dc7c1   MIPS: Hibernate: flush TLB entries earlier ... Browse Code »

    We found that TLB mismatch not only happens after kernel resume, but
    also happens during snapshot restore. So move it to the beginning of
    swsusp_arch_suspend().

    Signed-off-by: Huacai Chen
    Cc:
    Cc: Steven J. Hill
    Cc: linux-mips@linux-mips.org
    Cc: Fuxin Zhang
    Cc: Zhangjin Wu
    Cc: stable@vger.kernel.org
    Patchwork: https://patchwork.linux-mips.org/patch/9621/
    Signed-off-by: Ralf Baechle

    Huacai Chen
     

10 Oct, 2014

1 commit

  • 7f8998c7a   nosave: consolidate __nosave_{begin,end} in <asm/sections.h> ... Browse Code »

    The different architectures used their own (and different) declarations:

    extern __visible const void __nosave_begin, __nosave_end;
    extern const void __nosave_begin, __nosave_end;
    extern long __nosave_begin, __nosave_end;

    Consolidate them using the first variant in .

    Signed-off-by: Geert Uytterhoeven
    Cc: Russell King
    Cc: Ralf Baechle
    Cc: Benjamin Herrenschmidt
    Cc: Martin Schwidefsky
    Cc: "David S. Miller"
    Cc: Guan Xuetao
    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Cc: "H. Peter Anvin"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Geert Uytterhoeven
     

31 Mar, 2014

1 commit

  • c14af233f   MIPS: Hibernate: Flush TLB entries in swsusp_arch_resume() ... Browse Code »

    The original MIPS hibernate code flushes cache and TLB entries in
    swsusp_arch_resume(). But they are removed in Commit 44eeab67416711
    (MIPS: Hibernation: Remove SMP TLB and cacheflushing code.). A cross-
    CPU flush is surely unnecessary because all but the local CPU have
    already been disabled. But a local flush (at least the TLB flush) is
    needed. When we do hibernation on Loongson-3 with an E1000E NIC, it is
    very easy to produce a kernel panic (kernel page fault, or unaligned
    access). The root cause is E1000E driver use vzalloc_node() to allocate
    pages, the stale TLB entries of the booting kernel will be misused by
    the resumed target kernel.

    Signed-off-by: Huacai Chen
    Cc: John Crispin
    Cc: Steven J. Hill
    Cc: Aurelien Jarno
    Cc: linux-mips@linux-mips.org
    Cc: Fuxin Zhang
    Cc: Zhangjin Wu
    Cc: stable@vger.kernel.org
    Patchwork: https://patchwork.linux-mips.org/patch/6643/
    Signed-off-by: Ralf Baechle

    Huacai Chen
     

01 Feb, 2013

1 commit

  • 703422879   MIPS: Whitespace cleanup. ... Browse Code »

    Having received another series of whitespace patches I decided to do this
    once and for all rather than dealing with this kind of patches trickling
    in forever.

    Signed-off-by: Ralf Baechle

    Ralf Baechle
     

29 Dec, 2012

1 commit

11 May, 2011

1 commit

  • f850548ef   MIPS: Hibernation: Fixes for PAGE_SIZE >= 64kb ... Browse Code »

    PAGE_SIZE >= 64kb (1 << 16) is too big to be the immediate of the
    addiu/daddiu instruction, so, use addu/daddu instruction instead.

    The following compiling error is fixed:

    AS arch/mips/power/hibernate.o
    arch/mips/power/hibernate.S: Assembler messages:
    arch/mips/power/hibernate.S:38: Error: expression out of range
    make[2]: *** [arch/mips/power/hibernate.o] Error 1
    make[1]: *** [arch/mips/power] Error 2

    Reported-by: Roman Mamedov
    Signed-off-by: Wu Zhangjin
    To: linux-mips@linux-mips.org
    Patchwork: https://patchwork.linux-mips.org/patch/2313/
    Signed-off-by: Ralf Baechle

    Wu Zhangjin
     

27 Feb, 2010

1 commit

18 Sep, 2009

1 commit

  • a0b54e256   MIPS: Use PAGE_SIZE in assembly instead of _PAGE_SIZE. ... Browse Code »

    Now that PAGE_SIZE is available to assembly directly, there is no need
    to separately expose it as _PAGE_SIZE through asm-offsets.

    In addition, remove _PAGE_SHIFT from asm-offsets, since it was never
    needed, and is not used anywhere.

    Signed-off-by: Nelson Elhage
    Signed-off-by: Tim Abbott
    Signed-off-by: Ralf Baechle

    Nelson Elhage
     

25 Jun, 2009

1 commit

  • 44eeab674   MIPS: Hibernation: Remove SMP TLB and cacheflushing code. ... Browse Code »

    We can't perform any flushes on SMP from swsusp_arch_resume because
    interrupts are disabled. A cross-CPU flush is unnecessary anyway
    because all but the local CPU have already been disabled. A local
    flush is not needed either because we didn't change any mappings. So
    just delete the code.

    Signed-off-by: Ralf Baechle

    Ralf Baechle
     

17 Jun, 2009

1 commit

  • 363c55cae   MIPS: Add hibernation support ... Browse Code »

    [Ralf: SMP support requires CPU hotplugging which MIPS currently doesn't
    support. As implemented in this patch cache and tlb flushing will also be
    invoked with interrupts disabled so smp_call_function() will blow up in
    charming ways. So limit to !SMP.]

    Reviewed-by: Pavel Machek
    Reviewed-by: Yan Hua
    Reviewed-by: Arnaud Patard
    Reviewed-by: Atsushi Nemoto
    Signed-off-by: Wu Zhangjin
    Signed-off-by: Hu Hongbing
    Signed-off-by: Ralf Baechle

    Wu Zhangjin