From: Florian Fainelli Date: Thu, 30 Apr 2020 18:49:10 +0000 (-0700) Subject: net: dsa: b53: Bound check ARL searches X-Git-Tag: v5.15~3723^2~376^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cd169d799beeb738fa2d3e891960924cdcaf8414;p=platform%2Fkernel%2Flinux-starfive.git net: dsa: b53: Bound check ARL searches ARL searches are done by reading two ARL entries at a time, do not cap the search at 1024 which would only limit us to half of the possible ARL capacity, but use b53_max_arl_entries() instead which does the right multiplication between bins and indexes. Signed-off-by: Florian Fainelli Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c index aa0836a..9550d97 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -1702,7 +1702,7 @@ int b53_fdb_dump(struct dsa_switch *ds, int port, break; } - } while (count++ < 1024); + } while (count++ < b53_max_arl_entries(priv) / 2); return 0; } diff --git a/drivers/net/dsa/b53/b53_priv.h b/drivers/net/dsa/b53/b53_priv.h index 694e26c..e942c60 100644 --- a/drivers/net/dsa/b53/b53_priv.h +++ b/drivers/net/dsa/b53/b53_priv.h @@ -213,6 +213,11 @@ static inline int is58xx(struct b53_device *dev) #define B53_CPU_PORT_25 5 #define B53_CPU_PORT 8 +static inline unsigned int b53_max_arl_entries(struct b53_device *dev) +{ + return dev->num_arl_buckets * dev->num_arl_bins; +} + struct b53_device *b53_switch_alloc(struct device *base, const struct b53_io_ops *ops, void *priv);