Doug / smarc-fsl-linux-kernel

12 Jan, 2007

1 commit

  • b282b6f8a   [PATCH] Change cpu_up and co from __devinit to __cpuinit ... Browse Code »

    Compiling the kernel with CONFIG_HOTPLUG = y and CONFIG_HOTPLUG_CPU = n
    with CONFIG_RELOCATABLE = y generates the following modpost warnings

    WARNING: vmlinux - Section mismatch: reference to .init.data: from
    .text between '_cpu_up' (at offset 0xc0141b7d) and 'cpu_up'
    WARNING: vmlinux - Section mismatch: reference to .init.data: from
    .text between '_cpu_up' (at offset 0xc0141b9c) and 'cpu_up'
    WARNING: vmlinux - Section mismatch: reference to .init.text:__cpu_up
    from .text between '_cpu_up' (at offset 0xc0141bd8) and 'cpu_up'
    WARNING: vmlinux - Section mismatch: reference to .init.data: from
    .text between '_cpu_up' (at offset 0xc0141c05) and 'cpu_up'
    WARNING: vmlinux - Section mismatch: reference to .init.data: from
    .text between '_cpu_up' (at offset 0xc0141c26) and 'cpu_up'
    WARNING: vmlinux - Section mismatch: reference to .init.data: from
    .text between '_cpu_up' (at offset 0xc0141c37) and 'cpu_up'

    This is because cpu_up, _cpu_up and __cpu_up (in some architectures) are
    defined as __devinit
    AND
    __cpu_up calls some __cpuinit functions.

    Since __cpuinit would map to __init with this kind of a configuration,
    we get a .text refering .init.data warning.

    This patch solves the problem by converting all of __cpu_up, _cpu_up
    and cpu_up from __devinit to __cpuinit. The approach is justified since
    the callers of cpu_up are either dependent on CONFIG_HOTPLUG_CPU or
    are of __init type.

    Thus when CONFIG_HOTPLUG_CPU=y, all these cpu up functions would land up
    in .text section, and when CONFIG_HOTPLUG_CPU=n, all these functions would
    land up in .init section.

    Tested on a i386 SMP machine running linux-2.6.20-rc3-mm1.

    Signed-off-by: Gautham R Shenoy
    Cc: Vivek Goyal
    Cc: Mikael Starvik
    Cc: Ralf Baechle
    Cc: Kyle McMartin
    Cc: Paul Mackerras
    Cc: Benjamin Herrenschmidt
    Cc: "David S. Miller"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Gautham R Shenoy
     

14 Dec, 2006

1 commit

  • 5cbded585   [PATCH] getting rid of all casts of k[cmz]alloc() calls ... Browse Code »

    Run this:

    #!/bin/sh
    for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
    echo "De-casting $f..."
    perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
    done

    And then go through and reinstate those cases where code is casting pointers
    to non-pointers.

    And then drop a few hunks which conflicted with outstanding work.

    Cc: Russell King , Ian Molton
    Cc: Mikael Starvik
    Cc: Yoshinori Sato
    Cc: Roman Zippel
    Cc: Geert Uytterhoeven
    Cc: Ralf Baechle
    Cc: Paul Mackerras
    Cc: Kyle McMartin
    Cc: Benjamin Herrenschmidt
    Cc: Martin Schwidefsky
    Cc: "David S. Miller"
    Cc: Jeff Dike
    Cc: Greg KH
    Cc: Jens Axboe
    Cc: Paul Fulghum
    Cc: Alan Cox
    Cc: Karsten Keil
    Cc: Mauro Carvalho Chehab
    Cc: Jeff Garzik
    Cc: James Bottomley
    Cc: Ian Kent
    Cc: Steven French
    Cc: David Woodhouse
    Cc: Neil Brown
    Cc: Jaroslav Kysela
    Cc: Takashi Iwai
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Robert P. J. Day
     

09 Dec, 2006

3 commits

  • e34067fdd   [PATCH] Generic ioremap_page_range: parisc conversion ... Browse Code »

    Convert parisc to use generic ioremap_page_range()

    Signed-off-by: Haavard Skinnemoen
    Acked-by: Kyle McMartin
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Haavard Skinnemoen
     
  • f0d1b0b30   [PATCH] LOG2: Implement a general integer log2 facility in the kernel ... Browse Code »

    This facility provides three entry points:

    ilog2() Log base 2 of unsigned long
    ilog2_u32() Log base 2 of u32
    ilog2_u64() Log base 2 of u64

    These facilities can either be used inside functions on dynamic data:

    int do_something(long q)
    {
    ...;
    y = ilog2(x)
    ...;
    }

    Or can be used to statically initialise global variables with constant values:

    unsigned n = ilog2(27);

    When performing static initialisation, the compiler will report "error:
    initializer element is not constant" if asked to take a log of zero or of
    something not reducible to a constant. They treat negative numbers as
    unsigned.

    When not dealing with a constant, they fall back to using fls() which permits
    them to use arch-specific log calculation instructions - such as BSR on
    x86/x86_64 or SCAN on FRV - if available.

    [akpm@osdl.org: MMC fix]
    Signed-off-by: David Howells
    Cc: Benjamin Herrenschmidt
    Cc: Paul Mackerras
    Cc: Herbert Xu
    Cc: David Howells
    Cc: Wojtek Kaniewski
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Howells
     
  • 0c5a55668   [PATCH] struct path: convert parisc ... Browse Code »

    Signed-off-by: Josef Sipek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Josef Sipek
     

08 Dec, 2006

2 commits

  • 386d9a7ed   [PATCH] elf: Always define elf_addr_t in linux/elf.h ... Browse Code »

    Define elf_addr_t in linux/elf.h. The size of the type is determined using
    ELF_CLASS. This allows us to remove the defines that today are spread all
    over .c and .h files.

    Signed-off-by: Magnus Damm
    Cc: Daniel Jacobowitz
    Cc: Roland McGrath
    Cc: Jakub Jelinek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Magnus Damm
     
  • 6edaf68a8   [PATCH] mm: arch do_page_fault() vs in_atomic() ... Browse Code »

    In light of the recent pagefault and filemap_copy_from_user work I've gone
    through all the arch pagefault handlers to make sure the inc_preempt_count()
    'feature' works as expected.

    Several sections of code (including the new filemap_copy_from_user) rely on
    the fact that faults do not take locks under increased preempt count.

    arch/x86_64 - good
    arch/powerpc - good
    arch/cris - fixed
    arch/i386 - good
    arch/parisc - fixed
    arch/sh - good
    arch/sparc - good
    arch/s390 - good
    arch/m68k - fixed
    arch/ppc - good
    arch/alpha - fixed
    arch/mips - good
    arch/sparc64 - good
    arch/ia64 - good
    arch/arm - fixed
    arch/um - good
    arch/avr32 - good
    arch/h8300 - NA
    arch/m32r - good
    arch/v850 - good
    arch/frv - fixed
    arch/m68knommu - NA
    arch/arm26 - fixed
    arch/sh64 - fixed
    arch/xtensa - good

    Signed-off-by: Peter Zijlstra
    Acked-by: Nick Piggin
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Peter Zijlstra
     

03 Dec, 2006

1 commit

28 Oct, 2006

1 commit

  • 61ce1efe6   [PATCH] vmlinux.lds: consolidate initcall sections ... Browse Code »

    Add a vmlinux.lds.h helper macro for defining the eight-level initcall table,
    teach all the architectures to use it.

    This is a prerequisite for a patch which performs initcall synchronisation for
    multithreaded-probing.

    Cc: Greg KH
    Signed-off-by: Andrew Morton
    [ Added AVR32 as well ]
    Signed-off-by: Haavard Skinnemoen
    Signed-off-by: Linus Torvalds

    Andrew Morton
     

12 Oct, 2006

1 commit

07 Oct, 2006

5 commits

05 Oct, 2006

7 commits

04 Oct, 2006

18 commits