diff mbox series

[net-next,05/15] net/mlx5: IRQ, consolidate irq and affinity mask allocation

Message ID 20230816210049.54733-6-saeed@kernel.org (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series [net-next,01/15] net/mlx5e: aRFS, Prevent repeated kernel rule migrations requests | expand

Checks

Context Check Description
netdev/series_format success Pull request is its own cover letter
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: 1330 this patch: 1330
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 1353 this patch: 1353
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: 1353 this patch: 1353
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 39 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Saeed Mahameed Aug. 16, 2023, 9 p.m. UTC 
From: Saeed Mahameed <saeedm@nvidia.com>

Consolidate the mlx5_irq and mlx5_irq->mask allocation, to simplify
error flows and to match the dealloctation sequence @irq_release for
symmetry.

Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
index 33a133c9918c..653648216730 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
@@ -259,8 +259,11 @@  struct mlx5_irq *mlx5_irq_alloc(struct mlx5_irq_pool *pool, int i,
 	int err;
 
 	irq = kzalloc(sizeof(*irq), GFP_KERNEL);
-	if (!irq)
+	if (!irq || !zalloc_cpumask_var(&irq->mask, GFP_KERNEL)) {
+		kfree(irq);
 		return ERR_PTR(-ENOMEM);
+	}
+
 	if (!i || !pci_msix_can_alloc_dyn(dev->pdev)) {
 		/* The vector at index 0 is always statically allocated. If
 		 * dynamic irq is not supported all vectors are statically
@@ -297,11 +300,7 @@  struct mlx5_irq *mlx5_irq_alloc(struct mlx5_irq_pool *pool, int i,
 		mlx5_core_err(dev, "Failed to request irq. err = %d\n", err);
 		goto err_req_irq;
 	}
-	if (!zalloc_cpumask_var(&irq->mask, GFP_KERNEL)) {
-		mlx5_core_warn(dev, "zalloc_cpumask_var failed\n");
-		err = -ENOMEM;
-		goto err_cpumask;
-	}
+
 	if (af_desc) {
 		cpumask_copy(irq->mask, &af_desc->mask);
 		irq_set_affinity_and_hint(irq->map.virq, irq->mask);
@@ -319,8 +318,6 @@  struct mlx5_irq *mlx5_irq_alloc(struct mlx5_irq_pool *pool, int i,
 err_xa:
 	if (af_desc)
 		irq_update_affinity_hint(irq->map.virq, NULL);
-	free_cpumask_var(irq->mask);
-err_cpumask:
 	free_irq(irq->map.virq, &irq->nh);
 err_req_irq:
 #ifdef CONFIG_RFS_ACCEL
@@ -333,6 +330,7 @@  struct mlx5_irq *mlx5_irq_alloc(struct mlx5_irq_pool *pool, int i,
 	if (i && pci_msix_can_alloc_dyn(dev->pdev))
 		pci_msix_free_irq(dev->pdev, irq->map);
 err_alloc_irq:
+	free_cpumask_var(irq->mask);
 	kfree(irq);
 	return ERR_PTR(err);
 }