Eric Lee / smarc-fsl-linux-kernel

01 Nov, 2011

1 commit

  • b9075fa96   treewide: use __printf not __attribute__((format(printf,...))) ... Browse Code »

    Standardize the style for compiler based printf format verification.
    Standardized the location of __printf too.

    Done via script and a little typing.

    $ grep -rPl --include=*.[ch] -w "__attribute__" * | \
    grep -vP "^(tools|scripts|include/linux/compiler-gcc.h)" | \
    xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.+)\s*,\s*(.+)\s*\)\s*\)\s*\)/__printf($1, $2)/g ; print; }'

    [akpm@linux-foundation.org: revert arch bits]
    Signed-off-by: Joe Perches
    Cc: "Kirill A. Shutemov"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joe Perches
     

25 May, 2011

1 commit

  • 162a7e750   printk: allocate kernel log buffer earlier ... Browse Code »

    On larger systems, because of the numerous ACPI, Bootmem and EFI messages,
    the static log buffer overflows before the larger one specified by the
    log_buf_len param is allocated. Minimize the overflow by allocating the
    new log buffer as soon as possible.

    On kernels without memblock, a later call to setup_log_buf from
    kernel/init.c is the fallback.

    [akpm@linux-foundation.org: coding-style fixes]
    [akpm@linux-foundation.org: fix CONFIG_PRINTK=n build]
    Signed-off-by: Mike Travis
    Cc: Yinghai Lu
    Cc: "H. Peter Anvin"
    Cc: Jack Steiner
    Cc: Thomas Gleixner
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mike Travis
     

14 Jan, 2011

8 commits

  • a3f938bf6   include/linux/printk.h: use tab not spaces for indent ... Browse Code »

    Signed-off-by: Joe Perches
    Cc: Matt Mackall
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joe Perches
     
  • 6ec42a56e   include/linux/printk.h: organize printk_ratelimited macros ... Browse Code »

    - Use no_printk for !CONFIG_PRINTK printk_ratelimited.

    - Whitespace cleanup.

    Signed-off-by: Joe Perches
    Cc: Matt Mackall
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joe Perches
     
  • ac83ed687   include/linux/printk.h lib/hexdump.c: neatening and add CONFIG_PRINTK guard ... Browse Code »

    - Move prototypes and align arguments.

    - Add CONFIG_PRINTK guard for print_hex functions

    Signed-off-by: Joe Perches
    Cc: Matt Mackall
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joe Perches
     
  • 16cb839f1   include/linux/printk.h: add pr_<level>_once macros ... Browse Code »

    - Move printk_once definitions and add an #ifdef CONFIG_PRINTK

    - Add pr__once so printks can use pr_fmt

    Signed-off-by: Joe Perches
    Cc: Matt Mackall
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joe Perches
     
  • 5264f2f75   include/linux/printk.h: use and neaten no_printk ... Browse Code »

    - Move no_printk above first CONFIG_PRINTK block so it can be used by
    printk_once.

    - Convert statement expression if (0) printk macros to no_printk.

    - Convert printk_once(x...) to more normally used (fmt, ...) fmt,
    ##__VA_ARGS__.

    - Standardize __attribute__ use.

    - Expand single line inline functions.

    - Remove space before pointer.

    Signed-off-by: Joe Perches
    Cc: Matt Mackall
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joe Perches
     
  • 7d1e91aeb   include/linux/printk.h: use space after #define ... Browse Code »

    Signed-off-by: Joe Perches
    Cc: Matt Mackall
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joe Perches
     
  • a9747cc3a   include/linux/printk.h: move console functions and variables together ... Browse Code »

    There are many uses of printk_once(KERN_, so add pr__once
    macros to avoid printk_once(KERN_ pr_fmt(fmt).

    Add an #ifdef CONFIG_PRINTK for print_hex_dump and static inline void
    functions for the #else cases to reduce embedded code size. Neaten and
    organize the rest of the code.

    This patch:

    Move console functions and variables together.

    Signed-off-by: Joe Perches
    Cc: Matt Mackall
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joe Perches
     
  • 455cd5ab3   kptr_restrict for hiding kernel pointers from unprivileged users ... Browse Code »

    Add the %pK printk format specifier and the /proc/sys/kernel/kptr_restrict
    sysctl.

    The %pK format specifier is designed to hide exposed kernel pointers,
    specifically via /proc interfaces. Exposing these pointers provides an
    easy target for kernel write vulnerabilities, since they reveal the
    locations of writable structures containing easily triggerable function
    pointers. The behavior of %pK depends on the kptr_restrict sysctl.

    If kptr_restrict is set to 0, no deviation from the standard %p behavior
    occurs. If kptr_restrict is set to 1, the default, if the current user
    (intended to be a reader via seq_printf(), etc.) does not have CAP_SYSLOG
    (currently in the LSM tree), kernel pointers using %pK are printed as 0's.
    If kptr_restrict is set to 2, kernel pointers using %pK are printed as
    0's regardless of privileges. Replacing with 0's was chosen over the
    default "(null)", which cannot be parsed by userland %p, which expects
    "(nil)".

    [akpm@linux-foundation.org: check for IRQ context when !kptr_restrict, save an indent level, s/WARN/WARN_ONCE/]
    [akpm@linux-foundation.org: coding-style fixup]
    [randy.dunlap@oracle.com: fix kernel/sysctl.c warning]
    Signed-off-by: Dan Rosenberg
    Signed-off-by: Randy Dunlap
    Cc: James Morris
    Cc: Eric Dumazet
    Cc: Thomas Graf
    Cc: Eugene Teo
    Cc: Kees Cook
    Cc: Ingo Molnar
    Cc: David S. Miller
    Cc: Peter Zijlstra
    Cc: Eric Paris

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

    Dan Rosenberg
     

16 Nov, 2010

1 commit