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Message-ID: <20230811155714.1736405-2-jiri@resnulli.us> Date: Fri, 11 Aug 2023 17:57:02 +0200 From: Jiri Pirko <jiri@...nulli.us> To: netdev@...r.kernel.org Cc: kuba@...nel.org, pabeni@...hat.com, davem@...emloft.net, edumazet@...gle.com, moshe@...dia.com, saeedm@...dia.com, idosch@...dia.com, petrm@...dia.com Subject: [patch net-next v4 01/13] devlink: parse linecard attr in doit() callbacks From: Jiri Pirko <jiri@...dia.com> No need to give the linecards any special treatment in netlink attribute parsing, as unlike for ports, there is only a couple of commands benefiting from that. Remove DEVLINK_NL_FLAG_NEED_LINECARD, make pre_doit() callback simpler by moving the linecard attribute parsing to linecard_[gs]et_doit() ops. Signed-off-by: Jiri Pirko <jiri@...dia.com> --- net/devlink/devl_internal.h | 7 ------- net/devlink/leftover.c | 19 +++++++++++++------ net/devlink/netlink.c | 8 -------- 3 files changed, 13 insertions(+), 21 deletions(-) diff --git a/net/devlink/devl_internal.h b/net/devlink/devl_internal.h index 7fdd956ff992..3bbecebf192d 100644 --- a/net/devlink/devl_internal.h +++ b/net/devlink/devl_internal.h @@ -94,7 +94,6 @@ static inline bool devl_is_registered(struct devlink *devlink) #define DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT BIT(1) #define DEVLINK_NL_FLAG_NEED_RATE BIT(2) #define DEVLINK_NL_FLAG_NEED_RATE_NODE BIT(3) -#define DEVLINK_NL_FLAG_NEED_LINECARD BIT(4) enum devlink_multicast_groups { DEVLINK_MCGRP_CONFIG, @@ -203,12 +202,6 @@ int devlink_resources_validate(struct devlink *devlink, struct devlink_resource *resource, struct genl_info *info); -/* Line cards */ -struct devlink_linecard; - -struct devlink_linecard * -devlink_linecard_get_from_info(struct devlink *devlink, struct genl_info *info); - /* Rates */ int devlink_rate_nodes_check(struct devlink *devlink, u16 mode, struct netlink_ext_ack *extack); diff --git a/net/devlink/leftover.c b/net/devlink/leftover.c index e7900d9fa205..46cdd5d88583 100644 --- a/net/devlink/leftover.c +++ b/net/devlink/leftover.c @@ -285,7 +285,7 @@ devlink_linecard_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) return ERR_PTR(-EINVAL); } -struct devlink_linecard * +static struct devlink_linecard * devlink_linecard_get_from_info(struct devlink *devlink, struct genl_info *info) { return devlink_linecard_get_from_attrs(devlink, info->attrs); @@ -1814,11 +1814,15 @@ static void devlink_linecard_notify(struct devlink_linecard *linecard, static int devlink_nl_cmd_linecard_get_doit(struct sk_buff *skb, struct genl_info *info) { - struct devlink_linecard *linecard = info->user_ptr[1]; - struct devlink *devlink = linecard->devlink; + struct devlink *devlink = info->user_ptr[0]; + struct devlink_linecard *linecard; struct sk_buff *msg; int err; + linecard = devlink_linecard_get_from_info(devlink, info); + if (IS_ERR(linecard)) + return PTR_ERR(linecard); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) return -ENOMEM; @@ -2008,10 +2012,15 @@ static int devlink_linecard_type_unset(struct devlink_linecard *linecard, static int devlink_nl_cmd_linecard_set_doit(struct sk_buff *skb, struct genl_info *info) { - struct devlink_linecard *linecard = info->user_ptr[1]; struct netlink_ext_ack *extack = info->extack; + struct devlink *devlink = info->user_ptr[0]; + struct devlink_linecard *linecard; int err; + linecard = devlink_linecard_get_from_info(devlink, info); + if (IS_ERR(linecard)) + return PTR_ERR(linecard); + if (info->attrs[DEVLINK_ATTR_LINECARD_TYPE]) { const char *type; @@ -6347,14 +6356,12 @@ const struct genl_small_ops devlink_nl_small_ops[54] = { .cmd = DEVLINK_CMD_LINECARD_GET, .doit = devlink_nl_cmd_linecard_get_doit, .dumpit = devlink_nl_instance_iter_dumpit, - .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, /* can be retrieved by unprivileged users */ }, { .cmd = DEVLINK_CMD_LINECARD_SET, .doit = devlink_nl_cmd_linecard_set_doit, .flags = GENL_ADMIN_PERM, - .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, }, { .cmd = DEVLINK_CMD_SB_GET, diff --git a/net/devlink/netlink.c b/net/devlink/netlink.c index bada2819827b..9fd683f38a53 100644 --- a/net/devlink/netlink.c +++ b/net/devlink/netlink.c @@ -112,7 +112,6 @@ devlink_get_from_attrs_lock(struct net *net, struct nlattr **attrs) int devlink_nl_pre_doit(const struct genl_split_ops *ops, struct sk_buff *skb, struct genl_info *info) { - struct devlink_linecard *linecard; struct devlink_port *devlink_port; struct devlink *devlink; int err; @@ -151,13 +150,6 @@ int devlink_nl_pre_doit(const struct genl_split_ops *ops, goto unlock; } info->user_ptr[1] = rate_node; - } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) { - linecard = devlink_linecard_get_from_info(devlink, info); - if (IS_ERR(linecard)) { - err = PTR_ERR(linecard); - goto unlock; - } - info->user_ptr[1] = linecard; } return 0; -- 2.41.0
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