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
     

14 Sep, 2017

2 commits

06 Jul, 2017

1 commit

  • 0a9876456   um: Allow building and running on older hosts ... Browse Code »

    Commit a78ff1112263 ("um: add extended processor state save/restore
    support") and b6024b21fec8 ("um: extend fpstate to _xstate to support
    YMM registers") forced the use of the x86 FP _xstate and
    PTRACE_GETREGSET/SETREGSET. On older hosts, we would neither be able to
    build UML nor run it anymore with these two commits applied because we
    don't have definitions for struct _xstate nor these two ptrace requests.

    We can determine at build time which fp context structure to check
    against, just like we can keep using the old i387 fp save/restore if
    PTRACE_GETRESET/SETREGSET are not defined.

    Fixes: a78ff1112263 ("um: add extended processor state save/restore support")
    Fixes: b6024b21fec8 ("um: extend fpstate to _xstate to support YMM registers")
    Signed-off-by: Florian Fainelli
    Signed-off-by: Richard Weinberger

    Florian Fainelli
     

20 Mar, 2017

2 commits

  • 17a6e1b8e   x86/arch_prctl/64: Rename do_arch_prctl() to do_arch_prctl_64() ... Browse Code »

    In order to introduce new arch_prctls that are not 64 bit only, rename the
    existing 64 bit implementation to do_arch_prctl_64(). Also rename the
    second argument of that function from 'addr' to 'arg2', because it will no
    longer always be an address.

    Signed-off-by: Kyle Huey
    Reviewed-by: Andy Lutomirski
    Cc: Grzegorz Andrejczuk
    Cc: kvm@vger.kernel.org
    Cc: Radim Krčmář
    Cc: Peter Zijlstra
    Cc: Dave Hansen
    Cc: Andi Kleen
    Cc: linux-kselftest@vger.kernel.org
    Cc: Nadav Amit
    Cc: Robert O'Callahan
    Cc: Richard Weinberger
    Cc: "Rafael J. Wysocki"
    Cc: Borislav Petkov
    Cc: Len Brown
    Cc: Shuah Khan
    Cc: user-mode-linux-devel@lists.sourceforge.net
    Cc: Jeff Dike
    Cc: Alexander Viro
    Cc: user-mode-linux-user@lists.sourceforge.net
    Cc: David Matlack
    Cc: Boris Ostrovsky
    Cc: Dmitry Safonov
    Cc: linux-fsdevel@vger.kernel.org
    Cc: Paolo Bonzini
    Link: http://lkml.kernel.org/r/20170320081628.18952-5-khuey@kylehuey.com
    Signed-off-by: Thomas Gleixner

    Kyle Huey
     
  • dd93938a9   x86/arch_prctl: Rename 'code' argument to 'option' ... Browse Code »

    The x86 specific arch_prctl() arbitrarily changed prctl's 'option' to
    'code'. Before adding new options, rename it.

    Signed-off-by: Kyle Huey
    Cc: Grzegorz Andrejczuk
    Cc: kvm@vger.kernel.org
    Cc: Radim Krčmář
    Cc: Peter Zijlstra
    Cc: Dave Hansen
    Cc: Andi Kleen
    Cc: linux-kselftest@vger.kernel.org
    Cc: Nadav Amit
    Cc: Robert O'Callahan
    Cc: Richard Weinberger
    Cc: "Rafael J. Wysocki"
    Cc: Borislav Petkov
    Cc: Andy Lutomirski
    Cc: Len Brown
    Cc: Shuah Khan
    Cc: user-mode-linux-devel@lists.sourceforge.net
    Cc: Jeff Dike
    Cc: Alexander Viro
    Cc: user-mode-linux-user@lists.sourceforge.net
    Cc: David Matlack
    Cc: Boris Ostrovsky
    Cc: Dmitry Safonov
    Cc: linux-fsdevel@vger.kernel.org
    Cc: Paolo Bonzini
    Link: http://lkml.kernel.org/r/20170320081628.18952-3-khuey@kylehuey.com
    Signed-off-by: Thomas Gleixner

    Kyle Huey
     

22 May, 2016

1 commit

  • a78ff1112   um: add extended processor state save/restore support ... Browse Code »

    This patch extends save_fp_registers() and restore_fp_registers() to use
    PTRACE_GETREGSET and PTRACE_SETREGSET with the XSTATE note type, adding
    support for new processor state extensions between context switches.

    When the new ptrace requests are unavailable, it falls back to the old
    PTRACE_GETFPREGS and PTRACE_SETFPREGS methods, which have been renamed to
    save_i387_registers() and restore_i387_registers().

    Now these functions expect *fp_regs to have the space of an _xstate struct.
    Thus, this also makes ptrace in UML responde to PTRACE_GETFPREGS/_SETFPREG
    requests with a user_i387_struct (thus independent from HOST_FP_SIZE), and
    by calling save_i387_registers() and restore_i387_registers() instead of
    the extended save_fp_registers() and restore_fp_registers() functions.

    Signed-off-by: Eli Cooper

    Eli Cooper
     

06 Mar, 2016

1 commit

  • ad32a1f3c   um: use %lx format specifiers for unsigned longs ... Browse Code »

    static analysis from cppcheck detected %x being used for
    unsigned longs:

    [arch/x86/um/os-Linux/task_size.c:112]: (warning) %x in format
    string (no. 1) requires 'unsigned int' but the argument type
    is 'unsigned long'.

    Use %lx instead of %x

    Signed-off-by: Colin Ian King
    Signed-off-by: Richard Weinberger

    Colin Ian King
     

07 Sep, 2013

1 commit

  • b5c04da02   um: prctl: Do not include linux/ptrace.h ... Browse Code »

    On recent toolchains we hit:
    In file included from arch/x86/um/os-Linux/prctl.c:7:0:
    /usr/include/linux/ptrace.h:58:8: error: redefinition of ‘struct
    ptrace_peeksiginfo_args’ struct ptrace_peeksiginfo_args {
    ^
    In file included from arch/x86/um/os-Linux/prctl.c:6:0:
    /usr/include/sys/ptrace.h:191:8: note: originally defined here
    struct ptrace_peeksiginfo_args
    ^
    make[2]: *** [arch/x86/um/os-Linux/prctl.o] Error 1
    make[1]: *** [arch/x86/um/os-Linux] Error 2
    make: *** [arch/x86/um] Error 2

    The solution is not to include linux/ptrace.h and obtain
    the arch specific ptrace command from asm/ptrace.h.

    Reported-and-tested-by: David Oberhollenzer
    Signed-off-by: Richard Weinberger

    Richard Weinberger
     

10 Oct, 2012

1 commit

02 Nov, 2011

4 commits