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Subject[PATCH 01/54] net/dsa: don't use bitmap_weight() in b53_arl_read()
Date
Don't call bitmap_weight() if the following code can get by
without it.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
drivers/net/dsa/b53/b53_common.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 3867f3d4545f..9a10d80125d9 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -1620,12 +1620,8 @@ 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,
--
2.30.2
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