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    Subject[PATCH 5.15 129/207] net: marvell: mvpp2: Fix the computation of shared CPUs
    Date
    From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

    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>
    ---
    drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- 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_d

    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++) {

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