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authorTom Rix <trix@redhat.com>2022-02-14 07:41:39 -0800
committerDavid S. Miller <davem@davemloft.net>2022-02-15 14:31:43 +0000
commit2a36ed7c1cd55742503bed81d2cc0ea83bd0ad0c (patch)
treef16572374f1d293c0d182c5ff2c0b548ae0c9693 /drivers
parent9d2d38c35e7a3de96340c446f3b0fde7b2e7348e (diff)
downloadlinux-2a36ed7c1cd55742503bed81d2cc0ea83bd0ad0c.tar.bz2
dpaa2-switch: fix default return of dpaa2_switch_flower_parse_mirror_key
Clang static analysis reports this representative problem dpaa2-switch-flower.c:616:24: warning: The right operand of '==' is a garbage value tmp->cfg.vlan_id == vlan) { ^ ~~~~ vlan is set in dpaa2_switch_flower_parse_mirror_key(). However this function can return success without setting vlan. So change the default return to -EOPNOTSUPP. Fixes: 0f3faece5808 ("dpaa2-switch: add VLAN based mirroring") Signed-off-by: Tom Rix <trix@redhat.com> Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
index d6eefbbf163f..cacd454ac696 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
@@ -532,6 +532,7 @@ static int dpaa2_switch_flower_parse_mirror_key(struct flow_cls_offload *cls,
struct flow_rule *rule = flow_cls_offload_flow_rule(cls);
struct flow_dissector *dissector = rule->match.dissector;
struct netlink_ext_ack *extack = cls->common.extack;
+ int ret = -EOPNOTSUPP;
if (dissector->used_keys &
~(BIT(FLOW_DISSECTOR_KEY_BASIC) |
@@ -561,9 +562,10 @@ static int dpaa2_switch_flower_parse_mirror_key(struct flow_cls_offload *cls,
}
*vlan = (u16)match.key->vlan_id;
+ ret = 0;
}
- return 0;
+ return ret;
}
static int