netdev - [PATCH net-next 7/9] mlxsw: spectrum_cnt: Consolidate subpools initialization

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Date:   Wed, 18 Mar 2020 15:48:55 +0200
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, jiri@...lanox.com,
        mlxsw@...lanox.com, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 7/9] mlxsw: spectrum_cnt: Consolidate subpools initialization

From: Jiri Pirko <jiri@...lanox.com>

Put all init operations related to subpools into
mlxsw_sp_counter_sub_pools_init().

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
 .../ethernet/mellanox/mlxsw/spectrum_cnt.c    | 38 ++++++++-----------
 1 file changed, 16 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_cnt.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_cnt.c
index d36904143b10..417c512bc7a2 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_cnt.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_cnt.c
@@ -40,11 +40,14 @@ static const struct mlxsw_sp_counter_sub_pool mlxsw_sp_counter_sub_pools[] = {
 	}
 };
 
-static int mlxsw_sp_counter_sub_pools_prepare(struct mlxsw_sp *mlxsw_sp)
+static int mlxsw_sp_counter_sub_pools_init(struct mlxsw_sp *mlxsw_sp)
 {
 	struct mlxsw_sp_counter_pool *pool = mlxsw_sp->counter_pool;
+	struct devlink *devlink = priv_to_devlink(mlxsw_sp->core);
 	struct mlxsw_sp_counter_sub_pool *sub_pool;
+	unsigned int base_index = 0;
 	enum mlxsw_res_id res_id;
+	int err;
 	int i;
 
 	for (i = 0; i < pool->sub_pools_count; i++) {
@@ -55,6 +58,14 @@ static int mlxsw_sp_counter_sub_pools_prepare(struct mlxsw_sp *mlxsw_sp)
 			return -EIO;
 		sub_pool->entry_size = mlxsw_core_res_get(mlxsw_sp->core,
 							  res_id);
+		err = devlink_resource_size_get(devlink,
+						sub_pool->resource_id,
+						&sub_pool->size);
+		if (err)
+			return err;
+
+		sub_pool->base_index = base_index;
+		base_index += sub_pool->size;
 	}
 	return 0;
 }
@@ -65,9 +76,7 @@ int mlxsw_sp_counter_pool_init(struct mlxsw_sp *mlxsw_sp)
 	struct devlink *devlink = priv_to_devlink(mlxsw_sp->core);
 	struct mlxsw_sp_counter_sub_pool *sub_pool;
 	struct mlxsw_sp_counter_pool *pool;
-	unsigned int base_index;
 	unsigned int map_size;
-	int i;
 	int err;
 
 	pool = kzalloc(struct_size(pool, sub_pools, sub_pools_count),
@@ -80,10 +89,6 @@ int mlxsw_sp_counter_pool_init(struct mlxsw_sp *mlxsw_sp)
 	pool->sub_pools_count = sub_pools_count;
 	spin_lock_init(&pool->counter_pool_lock);
 
-	err = mlxsw_sp_counter_sub_pools_prepare(mlxsw_sp);
-	if (err)
-		goto err_sub_pools_prepare;
-
 	err = devlink_resource_size_get(devlink, MLXSW_SP_RESOURCE_COUNTERS,
 					&pool->pool_size);
 	if (err)
@@ -97,27 +102,16 @@ int mlxsw_sp_counter_pool_init(struct mlxsw_sp *mlxsw_sp)
 		goto err_usage_alloc;
 	}
 
-	base_index = 0;
-	for (i = 0; i < pool->sub_pools_count; i++) {
-		sub_pool = &pool->sub_pools[i];
-
-		err = devlink_resource_size_get(devlink,
-						sub_pool->resource_id,
-						&sub_pool->size);
-		if (err)
-			goto err_sub_pool_resource_size_get;
-
-		sub_pool->base_index = base_index;
-		base_index += sub_pool->size;
-	}
+	err = mlxsw_sp_counter_sub_pools_init(mlxsw_sp);
+	if (err)
+		goto err_sub_pools_init;
 
 	return 0;
 
-err_sub_pool_resource_size_get:
+err_sub_pools_init:
 	kfree(pool->usage);
 err_usage_alloc:
 err_pool_resource_size_get:
-err_sub_pools_prepare:
 	kfree(pool);
 	return err;
 }
-- 
2.24.1