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    SubjectRe: next Feb 13 drivers/scsi/aha1542.ko build break
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    On Fri, Feb 13, 2009 at 8:13 PM, Joe Eykholt <jeykholt@cisco.com> wrote:
    > The kernel infrastructure should fix that without requiring the driver to change.
    > Drivers ought to be allowed to divide.
    >
    > I've also seen this in another driver that divided a u64 by a constant.
    > I noticed that linux/math64.h provides div_u64(), but it seems awkward to call
    > that when the compiler generates a call to __udivdi3 (apparently).
    >
    > Can't we just provide __udivdi3, since gcc generates that call?
    > Otherwise, problems like this will continue to crop up.

    A complete list of integer functions to which gcc generates calls can
    be found here:
    http://gcc.gnu.org/onlinedocs/gcc-4.3.3/gccint/Integer-library-routines.html

    Some links to past discussions about this subject:
    * http://lkml.org/lkml/2003/7/2/5
    * http://lkml.org/lkml/2004/9/23/376

    Bart.


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