[ Upstream commit 7867299cde34e9c2d2c676f2a384a9d5853b914d ] 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@xxxxxxxxxxxxxxx> Signed-off-by: Stefan Chulski <stefanc@xxxxxxxxxxx> Reviewed-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- 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 d1f7b51cab62..f5333fc27e14 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -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 | @@ -2287,7 +2287,7 @@ static void mvpp2_txq_sent_counter_clear(void *arg) int queue; /* 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; for (queue = 0; queue < port->ntxqs; queue++) { -- 2.30.1