diff mbox series

[net-next,v2,10/11] devlink: introduce couple of dumpit callbacks for split ops

Message ID 20230802152023.941837-11-jiri@resnulli.us (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series devlink: use spec to generate split ops | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1332 this patch: 1330
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 1357 this patch: 1351
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1355 this patch: 1353
netdev/checkpatch warning WARNING: line length of 86 exceeds 80 columns
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Jiri Pirko Aug. 2, 2023, 3:20 p.m. UTC 
From: Jiri Pirko <jiri@nvidia.com>

Introduce couple of dumpit callbacks for generated split ops. Have them
as a thin wrapper around iteration function and allow to pass dump_one()
function pointer directly without need to store in devlink_cmd structs.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
---
v1->v2:
- fixed typo in patch subject
---
 net/devlink/dev.c           | 23 +++++++++++++----------
 net/devlink/devl_internal.h | 14 ++++++++------
 net/devlink/leftover.c      |  4 ++--
 net/devlink/netlink.c       | 21 ++++++++++++---------
 4 files changed, 35 insertions(+), 27 deletions(-)

Comments

Jakub Kicinski Aug. 3, 2023, 2:04 a.m. UTC | #1 
On Wed,  2 Aug 2023 17:20:22 +0200 Jiri Pirko wrote:
> +int devlink_nl_get_dumpit(struct sk_buff *msg, struct netlink_callback *cb)
> +{
> +	return devlink_nl_dumpit(msg, cb, devlink_nl_get_dump_one);
> +}
> +
>  
>  static void devlink_reload_failed_set(struct devlink *devlink,

nit double new line
diff mbox series

Patch

diff --git a/net/devlink/dev.c b/net/devlink/dev.c
index 2e120b3da220..1782157351ed 100644
--- a/net/devlink/dev.c
+++ b/net/devlink/dev.c
@@ -217,17 +217,19 @@  int devlink_nl_get_doit(struct sk_buff *skb, struct genl_info *info)
 }
 
 static int
-devlink_nl_cmd_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
-			    struct netlink_callback *cb)
+devlink_nl_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
+			struct netlink_callback *cb)
 {
 	return devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW,
 			       NETLINK_CB(cb->skb).portid,
 			       cb->nlh->nlmsg_seq, NLM_F_MULTI);
 }
 
-const struct devlink_cmd devl_cmd_get = {
-	.dump_one		= devlink_nl_cmd_get_dump_one,
-};
+int devlink_nl_get_dumpit(struct sk_buff *msg, struct netlink_callback *cb)
+{
+	return devlink_nl_dumpit(msg, cb, devlink_nl_get_dump_one);
+}
+
 
 static void devlink_reload_failed_set(struct devlink *devlink,
 				      bool reload_failed)
@@ -826,8 +828,8 @@  int devlink_nl_info_get_doit(struct sk_buff *skb, struct genl_info *info)
 }
 
 static int
-devlink_nl_cmd_info_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
-				 struct netlink_callback *cb)
+devlink_nl_info_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
+			     struct netlink_callback *cb)
 {
 	int err;
 
@@ -840,9 +842,10 @@  devlink_nl_cmd_info_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
 	return err;
 }
 
-const struct devlink_cmd devl_cmd_info_get = {
-	.dump_one		= devlink_nl_cmd_info_get_dump_one,
-};
+int devlink_nl_info_get_dumpit(struct sk_buff *msg, struct netlink_callback *cb)
+{
+	return devlink_nl_dumpit(msg, cb, devlink_nl_info_get_dump_one);
+}
 
 static int devlink_nl_flash_update_fill(struct sk_buff *msg,
 					struct devlink *devlink,
diff --git a/net/devlink/devl_internal.h b/net/devlink/devl_internal.h
index 419bc92da503..51de0e1fc769 100644
--- a/net/devlink/devl_internal.h
+++ b/net/devlink/devl_internal.h
@@ -116,9 +116,12 @@  struct devlink_nl_dump_state {
 	};
 };
 
+typedef int devlink_nl_dump_one_func_t(struct sk_buff *msg,
+				       struct devlink *devlink,
+				       struct netlink_callback *cb);
+
 struct devlink_cmd {
-	int (*dump_one)(struct sk_buff *msg, struct devlink *devlink,
-			struct netlink_callback *cb);
+	devlink_nl_dump_one_func_t *dump_one;
 };
 
 extern const struct genl_small_ops devlink_nl_small_ops[56];
@@ -129,8 +132,9 @@  devlink_get_from_attrs_lock(struct net *net, struct nlattr **attrs);
 void devlink_notify_unregister(struct devlink *devlink);
 void devlink_notify_register(struct devlink *devlink);
 
-int devlink_nl_instance_iter_dumpit(struct sk_buff *msg,
-				    struct netlink_callback *cb);
+int devlink_nl_dumpit(struct sk_buff *msg, struct netlink_callback *cb,
+		      devlink_nl_dump_one_func_t *dump_one);
+int devlink_nl_instance_iter_dumpit(struct sk_buff *msg, struct netlink_callback *cb);
 
 static inline struct devlink_nl_dump_state *
 devlink_dump_state(struct netlink_callback *cb)
@@ -151,7 +155,6 @@  devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink)
 }
 
 /* Commands */
-extern const struct devlink_cmd devl_cmd_get;
 extern const struct devlink_cmd devl_cmd_port_get;
 extern const struct devlink_cmd devl_cmd_sb_get;
 extern const struct devlink_cmd devl_cmd_sb_pool_get;
@@ -159,7 +162,6 @@  extern const struct devlink_cmd devl_cmd_sb_port_pool_get;
 extern const struct devlink_cmd devl_cmd_sb_tc_pool_bind_get;
 extern const struct devlink_cmd devl_cmd_param_get;
 extern const struct devlink_cmd devl_cmd_region_get;
-extern const struct devlink_cmd devl_cmd_info_get;
 extern const struct devlink_cmd devl_cmd_health_reporter_get;
 extern const struct devlink_cmd devl_cmd_trap_get;
 extern const struct devlink_cmd devl_cmd_trap_group_get;
diff --git a/net/devlink/leftover.c b/net/devlink/leftover.c
index 094cd0e8224e..895b732bed8e 100644
--- a/net/devlink/leftover.c
+++ b/net/devlink/leftover.c
@@ -6283,7 +6283,7 @@  const struct genl_small_ops devlink_nl_small_ops[56] = {
 		.cmd = DEVLINK_CMD_GET,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
 		.doit = devlink_nl_get_doit,
-		.dumpit = devlink_nl_instance_iter_dumpit,
+		.dumpit = devlink_nl_get_dumpit,
 		/* can be retrieved by unprivileged users */
 	},
 	{
@@ -6537,7 +6537,7 @@  const struct genl_small_ops devlink_nl_small_ops[56] = {
 		.cmd = DEVLINK_CMD_INFO_GET,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
 		.doit = devlink_nl_info_get_doit,
-		.dumpit = devlink_nl_instance_iter_dumpit,
+		.dumpit = devlink_nl_info_get_dumpit,
 		/* can be retrieved by unprivileged users */
 	},
 	{
diff --git a/net/devlink/netlink.c b/net/devlink/netlink.c
index 39e07a5a69af..98d5c6b0acd8 100644
--- a/net/devlink/netlink.c
+++ b/net/devlink/netlink.c
@@ -178,7 +178,6 @@  void devlink_nl_post_doit(const struct genl_split_ops *ops,
 }
 
 static const struct devlink_cmd *devl_cmds[] = {
-	[DEVLINK_CMD_GET]		= &devl_cmd_get,
 	[DEVLINK_CMD_PORT_GET]		= &devl_cmd_port_get,
 	[DEVLINK_CMD_SB_GET]		= &devl_cmd_sb_get,
 	[DEVLINK_CMD_SB_POOL_GET]	= &devl_cmd_sb_pool_get,
@@ -186,7 +185,6 @@  static const struct devlink_cmd *devl_cmds[] = {
 	[DEVLINK_CMD_SB_TC_POOL_BIND_GET] = &devl_cmd_sb_tc_pool_bind_get,
 	[DEVLINK_CMD_PARAM_GET]		= &devl_cmd_param_get,
 	[DEVLINK_CMD_REGION_GET]	= &devl_cmd_region_get,
-	[DEVLINK_CMD_INFO_GET]		= &devl_cmd_info_get,
 	[DEVLINK_CMD_HEALTH_REPORTER_GET] = &devl_cmd_health_reporter_get,
 	[DEVLINK_CMD_TRAP_GET]		= &devl_cmd_trap_get,
 	[DEVLINK_CMD_TRAP_GROUP_GET]	= &devl_cmd_trap_group_get,
@@ -196,23 +194,19 @@  static const struct devlink_cmd *devl_cmds[] = {
 	[DEVLINK_CMD_SELFTESTS_GET]	= &devl_cmd_selftests_get,
 };
 
-int devlink_nl_instance_iter_dumpit(struct sk_buff *msg,
-				    struct netlink_callback *cb)
+int devlink_nl_dumpit(struct sk_buff *msg, struct netlink_callback *cb,
+		      devlink_nl_dump_one_func_t *dump_one)
 {
-	const struct genl_dumpit_info *info = genl_dumpit_info(cb);
 	struct devlink_nl_dump_state *state = devlink_dump_state(cb);
-	const struct devlink_cmd *cmd;
 	struct devlink *devlink;
 	int err = 0;
 
-	cmd = devl_cmds[info->op.cmd];
-
 	while ((devlink = devlinks_xa_find_get(sock_net(msg->sk),
 					       &state->instance))) {
 		devl_lock(devlink);
 
 		if (devl_is_registered(devlink))
-			err = cmd->dump_one(msg, devlink, cb);
+			err = dump_one(msg, devlink, cb);
 		else
 			err = 0;
 
@@ -233,6 +227,15 @@  int devlink_nl_instance_iter_dumpit(struct sk_buff *msg,
 	return msg->len;
 }
 
+int devlink_nl_instance_iter_dumpit(struct sk_buff *msg,
+				    struct netlink_callback *cb)
+{
+	const struct genl_dumpit_info *info = genl_dumpit_info(cb);
+	const struct devlink_cmd *cmd = devl_cmds[info->op.cmd];
+
+	return devlink_nl_dumpit(msg, cb, cmd->dump_one);
+}
+
 struct genl_family devlink_nl_family __ro_after_init = {
 	.name		= DEVLINK_GENL_NAME,
 	.version	= DEVLINK_GENL_VERSION,