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net: nfc: have genetlink code to parse the attrs during dumpit

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Benefit from the fact that the generic netlink code can parse the attrs
for dumpit op and avoid need to parse it in the op callback.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2019-10-05 20:04:38 +02:00 • committed by David S. Miller
parent 75cdbdd089
commit 4495af3194
1 changed files with 5 additions and 12 deletions
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17
net/nfc/netlink.c
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@ -102,22 +102,14 @@ nla_put_failure:
static struct nfc_dev *__get_device_from_cb(struct netlink_callback *cb)
{
struct nlattr **attrbuf = genl_family_attrbuf(&nfc_genl_family);
const struct genl_dumpit_info *info = genl_dumpit_info(cb);
struct nfc_dev *dev;
int rc;
u32 idx;
rc = nlmsg_parse_deprecated(cb->nlh,
GENL_HDRLEN + nfc_genl_family.hdrsize,
attrbuf, nfc_genl_family.maxattr,
nfc_genl_policy, NULL);
if (rc < 0)
return ERR_PTR(rc);
if (!attrbuf[NFC_ATTR_DEVICE_INDEX])
if (!info->attrs[NFC_ATTR_DEVICE_INDEX])
return ERR_PTR(-EINVAL);
idx = nla_get_u32(attrbuf[NFC_ATTR_DEVICE_INDEX]);
idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
dev = nfc_get_device(idx);
if (!dev)
@ -1697,7 +1689,8 @@ static const struct genl_ops nfc_genl_ops[] = {
},
{
.cmd = NFC_CMD_GET_TARGET,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.validate = GENL_DONT_VALIDATE_STRICT |
GENL_DONT_VALIDATE_DUMP_STRICT,
.dumpit = nfc_genl_dump_targets,
.done = nfc_genl_dump_targets_done,
},