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net: dsa: don't use bitmap_weight() in b53_arl_read()

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Don't call bitmap_weight() if the following code can get by
without it.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
This commit is contained in:
Yury Norov
2022-01-23 10:38:32 -08:00
parent ce522ba9ef
commit e18e5cbc70
1 changed files with 1 additions and 5 deletions
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6
drivers/net/dsa/b53/b53_common.c
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@@ -1624,12 +1624,8 @@ static int b53_arl_read(struct b53_device *dev, u64 mac,
return 0;
}
if (bitmap_weight(free_bins, dev->num_arl_bins) == 0)
return -ENOSPC;
*idx = find_first_bit(free_bins, dev->num_arl_bins);
return -ENOENT;
return *idx >= dev->num_arl_bins ? -ENOSPC : -ENOENT;
}
static int b53_arl_op(struct b53_device *dev, int op, int port,