[2.6.27-git2] compilation warning for arch/x86/kernel/xsave.c - Kernel

This is a discussion on [2.6.27-git2] compilation warning for arch/x86/kernel/xsave.c - Kernel ; Hi Suresh, Your commit ed405958057ca6a8c4c9178a7a3b1167fabb45f5 causes this compilation warning on xsave.c : > arch/x86/kernel/xsave.c: In function ‘save_i387_xstate’: > arch/x86/kernel/xsave.c:98: attention : ignoring return value of > ‘__clear_user’, declared with attribute warn_unused_result Regards. -- To unsubscribe from this list: send the ...

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Thread: [2.6.27-git2] compilation warning for arch/x86/kernel/xsave.c

  1. [2.6.27-git2] compilation warning for arch/x86/kernel/xsave.c

    Hi Suresh,


    Your commit ed405958057ca6a8c4c9178a7a3b1167fabb45f5 causes this
    compilation warning on xsave.c :

    > arch/x86/kernel/xsave.c: In function ‘save_i387_xstate’:
    > arch/x86/kernel/xsave.c:98: attention : ignoring return value of
    > ‘__clear_user’, declared with attribute warn_unused_result


    Regards.

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  2. Re: [2.6.27-git2] compilation warning for arch/x86/kernel/xsave.c

    On Sun, Oct 12, 2008 at 12:30:17AM -0700, Rufus & Azrael wrote:
    > Hi Suresh,
    >
    >
    > Your commit ed405958057ca6a8c4c9178a7a3b1167fabb45f5 causes this
    > compilation warning on xsave.c :
    >
    > > arch/x86/kernel/xsave.c: In function ‘save_i387_xstate’:
    > > arch/x86/kernel/xsave.c:98: attention : ignoring return value of
    > > ‘__clear_user’, declared with attribute warn_unused_result


    Thanks Rufus for the report and thanks Ingo for pushing the fix.

    I wonder why CONFIG_ENABLE_MUST_CHECK is not turned on by default?
    I turned this option on, in the list of configs I use.

    thanks,
    suresh
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  3. Re: [2.6.27-git2] compilation warning for arch/x86/kernel/xsave.c

    Suresh Siddha wrote:
    > On Sun, Oct 12, 2008 at 12:30:17AM -0700, Rufus& Azrael wrote:
    >
    >> Hi Suresh,
    >>
    >>
    >> Your commit ed405958057ca6a8c4c9178a7a3b1167fabb45f5 causes this
    >> compilation warning on xsave.c :
    >>
    >>
    >>> arch/x86/kernel/xsave.c: In function ‘save_i387_xstate’:
    >>> arch/x86/kernel/xsave.c:98: attention : ignoring return value of
    >>> ‘__clear_user’, declared with attribute warn_unused_result
    >>>

    >
    > Thanks Rufus for the report and thanks Ingo for pushing the fix.
    >
    > I wonder why CONFIG_ENABLE_MUST_CHECK is not turned on by default?
    > I turned this option on, in the list of configs I use.
    >
    > thanks,
    > suresh
    >
    >

    Hi Suresh,


    This option is set to Y in my .config, but I don't remember if it was
    volontary or by default.

    Regards.

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