net: marvell: mvpp2: Fix the computation of shared CPUs

commit b83f5ac7d922e69a109261f5f940eebbd4e514c4 upstream.

'bitmap_fill()' fills a bitmap one 'long' at a time.
It is likely that an exact number of bits is expected.

Use 'bitmap_set()' instead in order not to set unexpected bits.

Fixes: e531f76757eb ("net: mvpp2: handle cases where more CPUs are available than s/w threads")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index ed6d0c019573b6823c719f445a6ede93a7e30791..bbd054fcda8cdcb3ff49b9bce4a63b17009bc87c 100644 (file)
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -7457,7 +7457,7 @@ static int mvpp2_probe(struct platform_device *pdev)
 
        shared = num_present_cpus() - priv->nthreads;
        if (shared > 0)
-               bitmap_fill(&priv->lock_map,
+               bitmap_set(&priv->lock_map, 0,
                            min_t(int, shared, MVPP2_MAX_THREADS));
 
        for (i = 0; i < MVPP2_MAX_THREADS; i++) {