Re: [Xen-devel] [Xen-devel V2] sedf/build: Fix build when using -fno-inline

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

On Wed, 2012-10-03 at 13:38 +0100, Andrew Cooper wrote:
> # HG changeset patch
> # Parent 5fbdbf585f5f2ee9a3e3c75a8a9f9f2cc6eda65c
> sedf/build: Fix build when using -fno-inline
> 
> struct task_slice.migrated is not initialised by this function, and
> subsequently returned by value, leading to the error:
> 
> sched_sedf.c: In function 'sedf_do_extra_schedule':
> sched_sedf.c:711: error: 'ret.migrated' may be used uninitialised in
> this function
> 
> for both gcc 4.1.2 and 4.4.3 (which are the two I have easily to hand)
> when combined with the -fno-inline compile option.
> 
> Signed-off-by Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> 
Acked-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>

> --
> This is compile tested only, but given that the sole caller of
> sedf_do_extra_schedule() unconditionally sets migrated to 0, I am
> fairly
> confident of the correctness of the fix.
> 
Agreed, sedf does not include any task migration mechanism, so 0 is all
you can have there. :-)

Thanks and Regards,
Dario

-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://retis.sssup.it/people/faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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