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authorRussell King <rmk+kernel@armlinux.org.uk>2020-03-14 10:15:28 +0000
committerDavid S. Miller <davem@davemloft.net>2020-03-15 17:11:12 -0700
commit87615c96e77ff45d3b0e587f9cfb223009af0b86 (patch)
tree01f74da006fc4f485562f511a698496a78e3d141 /net/dsa
parent3c04d3570b942059b16e037404dee9f409e24fa8 (diff)
downloadlinux-87615c96e77ff45d3b0e587f9cfb223009af0b86.tar.bz2
net: dsa: warn if phylink_mac_link_state returns error
Issue a warning to the kernel log if phylink_mac_link_state() returns an error. This should not occur, but let's make it visible. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/port.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/dsa/port.c b/net/dsa/port.c
index e6875d8f944d..a18e65a474a5 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -457,6 +457,7 @@ static void dsa_port_phylink_mac_pcs_get_state(struct phylink_config *config,
{
struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
struct dsa_switch *ds = dp->ds;
+ int err;
/* Only called for inband modes */
if (!ds->ops->phylink_mac_link_state) {
@@ -464,8 +465,12 @@ static void dsa_port_phylink_mac_pcs_get_state(struct phylink_config *config,
return;
}
- if (ds->ops->phylink_mac_link_state(ds, dp->index, state) < 0)
+ err = ds->ops->phylink_mac_link_state(ds, dp->index, state);
+ if (err < 0) {
+ dev_err(ds->dev, "p%d: phylink_mac_link_state() failed: %d\n",
+ dp->index, err);
state->link = 0;
+ }
}
static void dsa_port_phylink_mac_config(struct phylink_config *config,