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SubjectRE: [PATCH] mei: Remove some dead code
Date

>
>
> > On 12 Nov 2021, at 11:06, Christophe JAILLET
> <christophe.jaillet@wanadoo.fr> wrote:
> >
> > 'generated' is known to be true here, so "true || whatever" will still
> > be true.
> >
> > So, remove some dead code.
> >
> > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> > ---
> > This is also likely that a bug is lurking here.
> >
> > Maybe, the following was expected:
> > - generated = generated ||
> > + generated =
> > (hisr & HISR_INT_STS_MSK) ||
> > (ipc_isr & SEC_IPC_HOST_INT_STATUS_PENDING);
> >
> > ?
>
> I concur about your analysis, but I do not know the intent here.
Your fix is okay, I can ack that patch.
Thanks
Tomas

>
>
> Håkon
>
> > ---
> > drivers/misc/mei/hw-txe.c | 6 +-----
> > 1 file changed, 1 insertion(+), 5 deletions(-)
> >
> > diff --git a/drivers/misc/mei/hw-txe.c b/drivers/misc/mei/hw-txe.c
> > index a4e854b9b9e6..00652c137cc7 100644
> > --- a/drivers/misc/mei/hw-txe.c
> > +++ b/drivers/misc/mei/hw-txe.c
> > @@ -994,11 +994,7 @@ static bool mei_txe_check_and_ack_intrs(struct
> mei_device *dev, bool do_ack)
> > hhisr &= ~IPC_HHIER_SEC;
> > }
> >
> > - generated = generated ||
> > - (hisr & HISR_INT_STS_MSK) ||
> > - (ipc_isr & SEC_IPC_HOST_INT_STATUS_PENDING);
> > -
> > - if (generated && do_ack) {
> > + if (do_ack) {
> > /* Save the interrupt causes */
> > hw->intr_cause |= hisr & HISR_INT_STS_MSK;
> > if (ipc_isr & SEC_IPC_HOST_INT_STATUS_IN_RDY)
> > --
> > 2.30.2
> >

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