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    SubjectRe: Fix empty macros in acpi.
    On Tue, Jul 03, 2007 at 01:22:47AM -0400, Len Brown wrote:

    > whelp, it seems that the reason for this patch is this:
    > #define DBG()
    > if(...)
    > DBG();
    > next_c_statement
    > which turns into
    > if(...) ;
    > next_c_statement
    > But since there is an intervening ';', this code is still functionally correct
    > and a decent compiler will delete the test altogether, yes?

    Right, gcc does generate the correct code.

    > So is there some real problem here that I missed,
    > or is this to make some code-checking tool that I don't have happy?

    Out of curiousity, I thought I'd see what was lurking in a -Wextra
    build a while back. It's 99.9% noise, but a lot of it is trivial stuff
    like this.


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      Last update: 2007-07-03 07:49    [W:0.021 / U:1.020 seconds]
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