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    SubjectRe: Large block device patch, part 1 of 9
    Linus Torvalds writes:
    > On 3 Sep 2002, Andi Kleen wrote:
    > >
    > > x86-64 does that already. I did it originally to fix some printk warnings.
    > > But it caused even more. I didn't bother then to change it back. Doesn't
    > > seem to have too many bad side effects at least.
    > The printk warnings should be easy to fix once everybody uses the same
    > types - I think we right now have workarounds exactly for 64-bit machines
    > where w check BITS_PER_LONG and use different formats for them (exactly
    > because they historically have _not_ had the same types as the 32-bit
    > machines).
    > However, if anybody on the list is hacking gcc, the best option really
    > would be to just allow better control over gcc printf formats. I have
    > wanted that in user space too at times. And it doesn't matter if it only

    See <printf.h>: register_printf_function(). -Wformat doesn't know about
    new specifiers, though.

    > happens in new versions of gcc - we can disable the warning altogether for
    > old gcc's, as long as enough people have the new gcc to catch new
    > offenders..
    > (I'd _love_ to be able to add printk modifiers for other common types in
    > the kernel, like doing the NIPQUAD thing etc inside printk() instead of
    > having it pollute the callers. All of which has been avoided because of
    > the hardcoded gcc format warning..)
    > Linus


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