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

stable inclusion
from stable-v5.10.84
commit dde240695d97de12a5d9f8ebe520f8dd655d5b35
bugzilla: 186030 https://gitee.com/openeuler/kernel/issues/I4QV2F

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=dde240695d97de12a5d9f8ebe520f8dd655d5b35

--------------------------------

commit b83f5ac7 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: e531f767 ("net: mvpp2: handle cases where more CPUs are available than s/w threads")
Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c

@@ -6934,7 +6934,7 @@ 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++) {