RE: [PATCH v2 07/10] vfio/platform: Remove dead assignment in vfio_intp_interrupt()

[Chenqun (kuhn)]

> > Clang static code analyzer show warning:
> > hw/vfio/platform.c:239:9: warning: Value stored to 'ret' is never read
> >         ret = event_notifier_test_and_clear(intp->interrupt);
> >         ^     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >
> > Reported-by: Euler Robot <euler.robot@huawei.com>
> > Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
> > Reviewed-by: Eric Auger <eric.auger@redhat.com>
> > ---
> > Cc: Alex Williamson <alex.williamson@redhat.com>
> > Cc: Eric Auger <eric.auger@redhat.com>
> > Cc: Stefan Hajnoczi <stefanha@redhat.com>
> > ---
> >  hw/vfio/platform.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c index
> > ac2cefc9b1..869ed2c39d 100644
> > --- a/hw/vfio/platform.c
> > +++ b/hw/vfio/platform.c
> > @@ -236,7 +236,7 @@ static void vfio_intp_interrupt(VFIOINTp *intp)
> >          trace_vfio_intp_interrupt_set_pending(intp->pin);
> >          QSIMPLEQ_INSERT_TAIL(&vdev->pending_intp_queue,
> >                               intp, pqnext);
> > -        ret = event_notifier_test_and_clear(intp->interrupt);
> 
> Shouldn't we check the 'ret' like the other place in this function?

Hi, Li Qiang,

Eric、Alex、Stefan has already discussed this point in the V1 version.
https://patchwork.kernel.org/patch/11711897/

Thanks.