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44 lines
1.4 KiB
Diff
44 lines
1.4 KiB
Diff
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From cd169d799beeb738fa2d3e891960924cdcaf8414 Mon Sep 17 00:00:00 2001
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From: Florian Fainelli <f.fainelli@gmail.com>
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Date: Thu, 30 Apr 2020 11:49:10 -0700
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Subject: [PATCH] net: dsa: b53: Bound check ARL searches
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ARL searches are done by reading two ARL entries at a time, do not cap
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the search at 1024 which would only limit us to half of the possible ARL
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capacity, but use b53_max_arl_entries() instead which does the right
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multiplication between bins and indexes.
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Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Reviewed-by: Andrew Lunn <andrew@lunn.ch>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/dsa/b53/b53_common.c | 2 +-
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drivers/net/dsa/b53/b53_priv.h | 5 +++++
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2 files changed, 6 insertions(+), 1 deletion(-)
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--- a/drivers/net/dsa/b53/b53_common.c
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+++ b/drivers/net/dsa/b53/b53_common.c
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@@ -1715,7 +1715,7 @@ int b53_fdb_dump(struct dsa_switch *ds,
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break;
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}
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- } while (count++ < 1024);
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+ } while (count++ < b53_max_arl_entries(priv) / 2);
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return 0;
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}
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--- a/drivers/net/dsa/b53/b53_priv.h
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+++ b/drivers/net/dsa/b53/b53_priv.h
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@@ -213,6 +213,11 @@ static inline int is58xx(struct b53_devi
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#define B53_CPU_PORT_25 5
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#define B53_CPU_PORT 8
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+static inline unsigned int b53_max_arl_entries(struct b53_device *dev)
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+{
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+ return dev->num_arl_buckets * dev->num_arl_bins;
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+}
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+
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struct b53_device *b53_switch_alloc(struct device *base,
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const struct b53_io_ops *ops,
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void *priv);
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