| Message ID | 1613056399-18730-1-git-send-email-stefanc@marvell.com |
|---|---|
| State | New |
| Headers | show |
| Series | [net-next] net: mvpp2: fix interrupt mask/unmask skip condition | expand |
On Thu, Feb 11, 2021 at 05:13:19PM +0200, stefanc@marvell.com wrote: > From: Stefan Chulski <stefanc@marvell.com> > > The condition should be skipped if CPU ID equal to nthreads. > The patch doesn't fix any actual issue since > nthreads = min_t(unsigned int, num_present_cpus(), MVPP2_MAX_THREADS). > On all current Armada platforms, the number of CPU's is > less than MVPP2_MAX_THREADS. > > Fixes: e531f76757eb ("net: mvpp2: handle cases where more CPUs are available than s/w threads") > Reported-by: Russell King <rmk+kernel@armlinux.org.uk> > Signed-off-by: Stefan Chulski <stefanc@marvell.com> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk> Thanks. > --- > drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c > index a07cf60..74613d3 100644 > --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c > +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c > @@ -1135,7 +1135,7 @@ static void mvpp2_interrupts_mask(void *arg) > struct mvpp2_port *port = arg; > > /* If the thread isn't used, don't do anything */ > - if (smp_processor_id() > port->priv->nthreads) > + if (smp_processor_id() >= port->priv->nthreads) > return; > > mvpp2_thread_write(port->priv, > @@ -1153,7 +1153,7 @@ static void mvpp2_interrupts_unmask(void *arg) > u32 val; > > /* If the thread isn't used, don't do anything */ > - if (smp_processor_id() > port->priv->nthreads) > + if (smp_processor_id() >= port->priv->nthreads) > return; > > val = MVPP2_CAUSE_MISC_SUM_MASK | > -- > 1.9.1 > >
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index a07cf60..74613d3 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -1135,7 +1135,7 @@ static void mvpp2_interrupts_mask(void *arg) struct mvpp2_port *port = arg; /* If the thread isn't used, don't do anything */ - if (smp_processor_id() > port->priv->nthreads) + if (smp_processor_id() >= port->priv->nthreads) return; mvpp2_thread_write(port->priv, @@ -1153,7 +1153,7 @@ static void mvpp2_interrupts_unmask(void *arg) u32 val; /* If the thread isn't used, don't do anything */ - if (smp_processor_id() > port->priv->nthreads) + if (smp_processor_id() >= port->priv->nthreads) return; val = MVPP2_CAUSE_MISC_SUM_MASK |