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net: devlink: don't ignore errors during dumpit 

Currently, some dumpit function may end-up with error which is not
-EMSGSIZE and this error is silently ignored. Use does not have clue
that something wrong happened. Instead of silent ignore, propagate
the error to user.

Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2019-10-04 11:50:12 +02:00 committed by David S. Miller
parent 511e6ca047
commit c62c2cfb80
1 changed files with 24 additions and 6 deletions
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30
net/core/devlink.c
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@ -1044,7 +1044,7 @@ static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg,
struct devlink_sb *devlink_sb;
int start = cb->args[0];
int idx = 0;
int err;
int err = 0;
mutex_lock(&devlink_mutex);
list_for_each_entry(devlink, &devlink_list, list) {
@ -1067,6 +1067,9 @@ static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg,
out:
mutex_unlock(&devlink_mutex);
if (err != -EMSGSIZE)
return err;
cb->args[0] = idx;
return msg->len;
}
@ -1242,7 +1245,7 @@ static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg,
struct devlink_sb *devlink_sb;
int start = cb->args[0];
int idx = 0;
int err;
int err = 0;
mutex_lock(&devlink_mutex);
list_for_each_entry(devlink, &devlink_list, list) {
@ -1265,6 +1268,9 @@ static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg,
out:
mutex_unlock(&devlink_mutex);
if (err != -EMSGSIZE)
return err;
cb->args[0] = idx;
return msg->len;
}
@ -1469,7 +1475,7 @@ devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg,
struct devlink_sb *devlink_sb;
int start = cb->args[0];
int idx = 0;
int err;
int err = 0;
mutex_lock(&devlink_mutex);
list_for_each_entry(devlink, &devlink_list, list) {
@ -1494,6 +1500,9 @@ devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg,
out:
mutex_unlock(&devlink_mutex);
if (err != -EMSGSIZE)
return err;
cb->args[0] = idx;
return msg->len;
}
@ -3257,7 +3266,7 @@ static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg,
struct devlink *devlink;
int start = cb->args[0];
int idx = 0;
int err;
int err = 0;
mutex_lock(&devlink_mutex);
list_for_each_entry(devlink, &devlink_list, list) {
@ -3285,6 +3294,9 @@ static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg,
out:
mutex_unlock(&devlink_mutex);
if (err != -EMSGSIZE)
return err;
cb->args[0] = idx;
return msg->len;
}
@ -3513,7 +3525,7 @@ static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg,
struct devlink *devlink;
int start = cb->args[0];
int idx = 0;
int err;
int err = 0;
mutex_lock(&devlink_mutex);
list_for_each_entry(devlink, &devlink_list, list) {
@ -3546,6 +3558,9 @@ static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg,
out:
mutex_unlock(&devlink_mutex);
if (err != -EMSGSIZE)
return err;
cb->args[0] = idx;
return msg->len;
}
@ -4168,7 +4183,7 @@ static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg,
struct devlink *devlink;
int start = cb->args[0];
int idx = 0;
int err;
int err = 0;
mutex_lock(&devlink_mutex);
list_for_each_entry(devlink, &devlink_list, list) {
@ -4196,6 +4211,9 @@ static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg,
}
mutex_unlock(&devlink_mutex);
if (err != -EMSGSIZE)
return err;
cb->args[0] = idx;
return msg->len;
}