From: Matthew Wilcox <mawilcox@microsoft.com>
Date: Wed, 14 Mar 2018 19:57:24 -0700
Subject: mlx5: Remove call to ida_pre_get
Patch-mainline: v4.17-rc1
Git-commit: c846d8da5640a6c61d57e2c14a1a6d74b9c643b0
References: bsc#1103990 FATE#326006

The mlx5 driver calls ida_pre_get() in a loop for no readily apparent
reason.  The driver uses ida_simple_get() which will call ida_pre_get()
by itself and there's no need to use ida_pre_get() unless using
ida_get_new().

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -1647,7 +1647,6 @@ try_add_to_existing_fg(struct mlx5_flow_
 
 	list_for_each_entry(iter, match_head, list) {
 		nested_down_read_ref_node(&iter->g->node, FS_LOCK_PARENT);
-		ida_pre_get(&iter->g->fte_allocator, GFP_KERNEL);
 	}
 
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