netdev - [PATCH net-next V2 11/11] net/mlx5: Don't call give

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Date: Tue, 2 Apr 2024 16:30:43 +0300
From: Tariq Toukan <tariqt@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>
CC: <netdev@...r.kernel.org>, Saeed Mahameed <saeedm@...dia.com>, Gal Pressman
	<gal@...dia.com>, Leon Romanovsky <leonro@...dia.com>, Jianbo Liu
	<jianbol@...dia.com>, Parav Pandit <parav@...dia.com>, Moshe Shemesh
	<moshe@...dia.com>, Tariq Toukan <tariqt@...dia.com>
Subject: [PATCH net-next V2 11/11] net/mlx5: Don't call give_pages() if request 0 page

From: Jianbo Liu <jianbol@...dia.com>

Firmware will return 0 on query BOOT/INIT PAGES for non-page supplier
functions (external host PF/VF/SF), so no page is needed to be
allocated for them.

Signed-off-by: Jianbo Liu <jianbol@...dia.com>
Reviewed-by: Parav Pandit <parav@...dia.com>
Reviewed-by: Moshe Shemesh <moshe@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
index dcf58efac159..d894a88fa9f2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
@@ -660,6 +660,9 @@ int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot)
 	mlx5_core_dbg(dev, "requested %d %s pages for func_id 0x%x\n",
 		      npages, boot ? "boot" : "init", func_id);
 
+	if (!npages)
+		return 0;
+
 	return give_pages(dev, func_id, npages, 0, mlx5_core_is_ecpf(dev));
 }
 
-- 
2.31.1