Eric Lee / smarc-fsl-linux-kernel

27 Jul, 2018

1 commit

11 Sep, 2015

1 commit

  • 2d3862d26   lib/decompressors: use real out buf size for gunzip with kernel ... Browse Code »

    When loading x86 64bit kernel above 4GiB with patched grub2, got kernel
    gunzip error.

    | early console in decompress_kernel
    | decompress_kernel:
    | input: [0x807f2143b4-0x807ff61aee]
    | output: [0x807cc00000-0x807f3ea29b] 0x027ea29c: output_len
    | boot via startup_64
    | KASLR using RDTSC...
    | new output: [0x46fe000000-0x470138cfff] 0x0338d000: output_run_size
    | decompress: [0x46fe000000-0x47007ea29b]
    Cc: Alexandre Courbot
    Cc: Jon Medhurst
    Cc: Stephen Warren
    Cc: "H. Peter Anvin"
    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yinghai Lu
     

14 Dec, 2014

1 commit

  • b5c8afe5b   decompress_bunzip2: off by one in get_next_block() ... Browse Code »

    "origPtr" is used as an offset into the bd->dbuf[] array. That array is
    allocated in start_bunzip() and has "bd->dbufSize" number of elements so
    the test here should be >= instead of >.

    Later we check "origPtr" again before using it as an offset so I don't
    know if this bug can be triggered in real life.

    Fixes: bc22c17e12c1 ('bzip2/lzma: library support for gzip, bzip2 and lzma decompression')
    Signed-off-by: Dan Carpenter
    Cc: Alain Knaff
    Cc: Yinghai Lu
    Cc: "H. Peter Anvin"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dan Carpenter
     

09 Aug, 2014

1 commit

  • d97b07c54   initramfs: support initramfs that is bigger than 2GiB ... Browse Code »

    Now with 64bit bzImage and kexec tools, we support ramdisk that size is
    bigger than 2g, as we could put it above 4G.

    Found compressed initramfs image could not be decompressed properly. It
    turns out that image length is int during decompress detection, and it
    will become < 0 when length is more than 2G. Furthermore, during
    decompressing len as int is used for inbuf count, that has problem too.

    Change len to long, that should be ok as on 32 bit platform long is
    32bits.

    Tested with following compressed initramfs image as root with kexec.
    gzip, bzip2, xz, lzma, lzop, lz4.
    run time for populate_rootfs():
    size name Nehalem-EX Westmere-EX Ivybridge-EX
    9034400256 root_img : 26s 24s 30s
    3561095057 root_img.lz4 : 28s 27s 27s
    3459554629 root_img.lzo : 29s 29s 28s
    3219399480 root_img.gz : 64s 62s 49s
    2251594592 root_img.xz : 262s 260s 183s
    2226366598 root_img.lzma: 386s 376s 277s
    2901482513 root_img.bz2 : 635s 599s

    Signed-off-by: Yinghai Lu
    Cc: "H. Peter Anvin"
    Cc: Ingo Molnar
    Cc: Rashika Kheria
    Cc: Josh Triplett
    Cc: Kyungsik Lee
    Cc: P J P
    Cc: Al Viro
    Cc: Tetsuo Handa
    Cc: "Daniel M. Weeks"
    Cc: Alexandre Courbot
    Cc: Jan Beulich
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yinghai Lu
     

06 Dec, 2011

2 commits

14 Jan, 2011

2 commits

  • 2b6b5caa6   Decompressors: include <linux/slab.h> in <linux/decompress/mm.h> ... Browse Code »

    Currently users of mm.h need to include to use the macros
    malloc() and free() provided by mm.h. This fixes it.

    Signed-off-by: Lasse Collin
    Cc: "H. Peter Anvin"
    Cc: Alain Knaff
    Cc: Albin Tonnerre
    Cc: Phillip Lougher
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Lasse Collin
     
  • 93685ad24   Decompressors: get rid of set_error_fn() macro ... Browse Code »

    set_error_fn() has become a useless complication after c1e7c3ae59
    ("bzip2/lzma/gzip: pre-boot malloc doesn't return NULL on failure") fixed
    the use of error() in malloc(). Only decompress_unlzma.c had some use for
    it and that was easy to change too.

    This also gets rid of the static function pointer "error", which
    should have been marked as __initdata.

    Signed-off-by: Lasse Collin
    Cc: "H. Peter Anvin"
    Cc: Alain Knaff
    Cc: Albin Tonnerre
    Cc: Phillip Lougher
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Lasse Collin
     

11 Aug, 2010

1 commit

  • dd21e9bdf   lib/decompress_bunzip2.c: fix checkstack warning ... Browse Code »

    Fix checkstack error:

    lib/decompress_bunzip2.c: In function `get_next_block':
    lib/decompress_bunzip2.c:511: warning: the frame size of 1932 bytes is larger than 1024 bytes

    byteCount, symToByte, and mtfSymbol cannot be declared static or allocated
    dynamically so place them in the bunzip_data struct.

    Signed-off-by: Prarit Bhargava
    Cc: Phillip Lougher
    Cc: "H. Peter Anvin"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Prarit Bhargava
     

16 Dec, 2009

1 commit

04 Dec, 2009

1 commit

  • af901ca18   tree-wide: fix assorted typos all over the place ... Browse Code »

    That is "success", "unknown", "through", "performance", "[re|un]mapping"
    , "access", "default", "reasonable", "[con]currently", "temperature"
    , "channel", "[un]used", "application", "example","hierarchy", "therefore"
    , "[over|under]flow", "contiguous", "threshold", "enough" and others.

    Signed-off-by: André Goddard Rosa
    Signed-off-by: Jiri Kosina

    André Goddard Rosa
     

08 Aug, 2009

2 commits

  • 9e5cf0ca2   lib/decompress_*: only include <linux/slab.h> if STATIC is not defined ... Browse Code »

    These includes were added by 079effb6933f34b9b1b67b08bd4fd7fb672d16ef
    ("kmemtrace, kbuild: fix slab.h dependency problem in
    lib/decompress_inflate.c") to fix the build when using kmemtrace. However
    this is not necessary when used to create a compressed kernel, and
    actually creates issues (brings a lot of things unavailable in the
    decompression environment), so don't include it if STATIC is defined.

    Signed-off-by: Albin Tonnerre
    Cc: Sam Ravnborg
    Cc: Russell King
    Cc: Ingo Molnar
    Cc: Thomas Gleixner
    Cc: "H. Peter Anvin"
    Cc: Pekka Enberg
    Cc: Eduard - Gabriel Munteanu
    Cc: Phillip Lougher
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Albin Tonnerre
     
  • b1af4315d   bzip2/lzma: remove nasty uncompressed size hack in pre-boot environment ... Browse Code »

    decompress_bunzip2 and decompress_unlzma have a nasty hack that subtracts
    4 from the input length if being called in the pre-boot environment.

    This is a nasty hack because it relies on the fact that flush = NULL only
    when called from the pre-boot environment (i.e.
    arch/x86/boot/compressed/misc.c). initramfs.c/do_mounts_rd.c pass in a
    flush buffer (flush != NULL).

    This hack prevents the decompressors from being used with flush = NULL by
    other callers unless knowledge of the hack is propagated to them.

    This patch removes the hack by making decompress (called only from the
    pre-boot environment) a wrapper function that subtracts 4 from the input
    length before calling the decompressor.

    Signed-off-by: Phillip Lougher
    Cc: "H. Peter Anvin"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Phillip Lougher
     

03 Apr, 2009

1 commit

  • ba56617ef   kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_bunzip2.c ... Browse Code »

    Impact: cleanup

    lib/decompress_bunzip2.c depends on slab.h without including it:

    CC lib/decompress_bunzip2.o
    lib/decompress_bunzip2.c: In function ‘start_bunzip’:
    lib/decompress_bunzip2.c:636: error: implicit declaration of function ‘kmalloc’
    lib/decompress_bunzip2.c:636: warning: assignment makes pointer from integer without a cast
    lib/decompress_bunzip2.c: In function ‘bunzip2’:
    lib/decompress_bunzip2.c:682: warning: assignment makes pointer from integer without a cast
    lib/decompress_bunzip2.c:693: warning: assignment makes pointer from integer without a cast
    lib/decompress_bunzip2.c:726: error: implicit declaration of function ‘kfree’
    make[1]: *** [lib/decompress_bunzip2.o] Error 1
    make: *** [lib/] Error 2

    It gets included implicitly currently - but this will not be the
    case with upcoming kmemtrace changes.

    Signed-off-by: Pekka Enberg
    Cc: Eduard - Gabriel Munteanu
    LKML-Reference:
    Signed-off-by: Ingo Molnar

    Pekka Enberg
     

05 Jan, 2009

1 commit

  • bc22c17e1   bzip2/lzma: library support for gzip, bzip2 and lzma decompression ... Browse Code »

    Impact: Replaces inflate.c with a wrapper around zlib_inflate; new library code

    This is the first part of the bzip2/lzma patch

    The bzip patch is based on an idea by Christian Ludwig, includes support for
    compressing the kernel with bzip2 or lzma rather than gzip. Both
    compressors give smaller sizes than gzip. Lzma's decompresses faster
    than bzip2.

    It also supports ramdisks and initramfs' compressed using these two
    compressors.

    The functionality has been successfully used for a couple of years by
    the udpcast project

    This version applies to "tip" kernel 2.6.28

    This part contains:
    - changed inflate.c to accomodate rest of patch
    - implementation of bzip2 compression (not used at this stage yet)
    - implementation of lzma compression (not used at this stage yet)
    - Makefile routines to support bzip2 and lzma kernel compression

    Signed-off-by: Alain Knaff
    Signed-off-by: H. Peter Anvin

    Alain Knaff