lkml.org 
[lkml]   [2011]   [Mar]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Subject[PATCH v3 2/5] x86: Better comments for get_bios_ebda()
    From
    Date
    Make the comments a bit clearer for get_bios_ebda so that it actually
    tells us what it is returning.

    Signed-off-by: Mike Waychison <mikew@google.com>
    ---
    arch/x86/include/asm/bios_ebda.h | 7 +++++--
    1 files changed, 5 insertions(+), 2 deletions(-)

    diff --git a/arch/x86/include/asm/bios_ebda.h b/arch/x86/include/asm/bios_ebda.h
    index 5174cf0..aa6a317 100644
    --- a/arch/x86/include/asm/bios_ebda.h
    +++ b/arch/x86/include/asm/bios_ebda.h
    @@ -4,11 +4,14 @@
    #include <asm/io.h>

    /*
    - * there is a real-mode segmented pointer pointing to the
    - * 4K EBDA area at 0x40E.
    + * Returns physical address of EBDA. Returns 0 if there is no EBDA.
    */
    static inline unsigned int get_bios_ebda(void)
    {
    + /*
    + * There is a real-mode segmented pointer pointing to the
    + * 4K EBDA area at 0x40E.
    + */
    unsigned int address = *(unsigned short *)phys_to_virt(0x40E);
    address <<= 4;
    return address; /* 0 means none */


    \
     
     \ /
      Last update: 2011-03-15 08:01    [W:0.023 / U:59.860 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site