| From b83f5ac7d922e69a109261f5f940eebbd4e514c4 Mon Sep 17 00:00:00 2001 |
| From: Christophe JAILLET <christophe.jaillet@wanadoo.fr> |
| Date: Mon, 29 Nov 2021 22:53:27 +0100 |
| Subject: net: marvell: mvpp2: Fix the computation of shared CPUs |
| |
| 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 |
| @@ -6918,7 +6918,7 @@ 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++) { |
