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devlink: move and rename devlink_dpipe_send_and_alloc_skb() helper 

Since both dpipe and resource code is using this helper, in preparation
for code split to separate files, move
devlink_dpipe_send_and_alloc_skb() helper into netlink.c. Rename it on
the way.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230828061657.300667-5-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jiri Pirko 2023-08-28 08:16:46 +02:00 committed by Jakub Kicinski
parent 2b4d8bb088
commit 2475ed158c
3 changed files with 26 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
net/devlink/devl_internal.h
View File

@ -150,6 +150,8 @@ devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink)
return 0;
}
int devlink_nl_msg_reply_and_new(struct sk_buff **msg, struct genl_info *info);
/* Notify */
void devlink_notify(struct devlink *devlink, enum devlink_command cmd);
void devlink_ports_notify_register(struct devlink *devlink);

32
net/devlink/leftover.c
View File

@ -1277,22 +1277,6 @@ nla_put_failure:
return -EMSGSIZE;
}
static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb,
struct genl_info *info)
{
int err;
if (*pskb) {
err = genlmsg_reply(*pskb, info);
if (err)
return err;
}
*pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!*pskb)
return -ENOMEM;
return 0;
}
static int devlink_dpipe_tables_fill(struct genl_info *info,
enum devlink_command cmd, int flags,
struct list_head *dpipe_tables,
@ -1311,7 +1295,7 @@ static int devlink_dpipe_tables_fill(struct genl_info *info,
table = list_first_entry(dpipe_tables,
struct devlink_dpipe_table, list);
start_again:
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
err = devlink_nl_msg_reply_and_new(&skb, info);
if (err)
return err;
@ -1358,7 +1342,7 @@ send_done:
nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
NLMSG_DONE, 0, flags | NLM_F_MULTI);
if (!nlh) {
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
err = devlink_nl_msg_reply_and_new(&skb, info);
if (err)
return err;
goto send_done;
@ -1551,7 +1535,7 @@ int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx)
struct devlink *devlink;
int err;
err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb,
err = devlink_nl_msg_reply_and_new(&dump_ctx->skb,
dump_ctx->info);
if (err)
return err;
@ -1638,7 +1622,7 @@ send_done:
nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq,
NLMSG_DONE, 0, flags | NLM_F_MULTI);
if (!nlh) {
err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info);
err = devlink_nl_msg_reply_and_new(&dump_ctx.skb, info);
if (err)
return err;
goto send_done;
@ -1746,7 +1730,7 @@ static int devlink_dpipe_headers_fill(struct genl_info *info,
i = 0;
start_again:
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
err = devlink_nl_msg_reply_and_new(&skb, info);
if (err)
return err;
@ -1782,7 +1766,7 @@ send_done:
nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
NLMSG_DONE, 0, flags | NLM_F_MULTI);
if (!nlh) {
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
err = devlink_nl_msg_reply_and_new(&skb, info);
if (err)
return err;
goto send_done;
@ -2047,7 +2031,7 @@ static int devlink_resource_fill(struct genl_info *info,
resource = list_first_entry(&devlink->resource_list,
struct devlink_resource, list);
start_again:
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
err = devlink_nl_msg_reply_and_new(&skb, info);
if (err)
return err;
@ -2086,7 +2070,7 @@ send_done:
nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
NLMSG_DONE, 0, flags | NLM_F_MULTI);
if (!nlh) {
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
err = devlink_nl_msg_reply_and_new(&skb, info);
if (err)
return err;
goto send_done;

15
net/devlink/netlink.c
View File

@ -82,6 +82,21 @@ static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
[DEVLINK_ATTR_REGION_DIRECT] = { .type = NLA_FLAG },
};
int devlink_nl_msg_reply_and_new(struct sk_buff **msg, struct genl_info *info)
{
int err;
if (*msg) {
err = genlmsg_reply(*msg, info);
if (err)
return err;
}
*msg = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!*msg)
return -ENOMEM;
return 0;
}
struct devlink *
devlink_get_from_attrs_lock(struct net *net, struct nlattr **attrs)
{