From: Nitesh Narayan Lal <nitesh@redhat.com>
To: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
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lewis.hanly@microchip.com, benve@cisco.com, _govind@gmx.com,
jassisinghbrar@gmail.com
Subject: [PATCH v6 09/14] ixgbe: Use irq_update_affinity_hint
Date: Fri, 3 Sep 2021 11:24:25 -0400 [thread overview]
Message-ID: <20210903152430.244937-10-nitesh@redhat.com> (raw)
In-Reply-To: <20210903152430.244937-1-nitesh@redhat.com>
The driver uses irq_set_affinity_hint() to update the affinity_hint mask
that is consumed by the userspace to distribute the interrupts. However,
under the hood irq_set_affinity_hint() also applies the provided cpumask
(if not NULL) as the affinity for the given interrupt which is an
undocumented side effect.
To remove this side effect irq_set_affinity_hint() has been marked
as deprecated and new interfaces have been introduced. Hence, replace the
irq_set_affinity_hint() with the new interface irq_update_affinity_hint()
that only updates the affinity_hint pointer.
Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 24e06ba6f5e9..66669f07d980 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -3242,8 +3242,8 @@ static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
/* If Flow Director is enabled, set interrupt affinity */
if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) {
/* assign the mask for this irq */
- irq_set_affinity_hint(entry->vector,
- &q_vector->affinity_mask);
+ irq_update_affinity_hint(entry->vector,
+ &q_vector->affinity_mask);
}
}
@@ -3259,8 +3259,8 @@ static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
free_queue_irqs:
while (vector) {
vector--;
- irq_set_affinity_hint(adapter->msix_entries[vector].vector,
- NULL);
+ irq_update_affinity_hint(adapter->msix_entries[vector].vector,
+ NULL);
free_irq(adapter->msix_entries[vector].vector,
adapter->q_vector[vector]);
}
@@ -3393,7 +3393,7 @@ static void ixgbe_free_irq(struct ixgbe_adapter *adapter)
continue;
/* clear the affinity_mask in the IRQ descriptor */
- irq_set_affinity_hint(entry->vector, NULL);
+ irq_update_affinity_hint(entry->vector, NULL);
free_irq(entry->vector, q_vector);
}
--
2.27.0
next prev parent reply other threads:[~2021-09-03 15:26 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-03 15:24 [PATCH v6 00/14] genirq: Cleanup the abuse of irq_set_affinity_hint() Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 01/14] genirq: Provide new interfaces for affinity hints Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 02/14] iavf: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] iavf: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 03/14] i40e: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] i40e: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 04/14] scsi: megaraid_sas: Use irq_set_affinity_and_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] scsi: megaraid_sas: Use irq_set_affinity_and_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 05/14] scsi: mpt3sas: Use irq_set_affinity_and_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] scsi: mpt3sas: Use irq_set_affinity_and_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 06/14] RDMA/irdma: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] RDMA/irdma: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 07/14] enic: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] enic: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 08/14] be2net: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] be2net: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` Nitesh Narayan Lal [this message]
2021-12-10 19:54 ` [tip: irq/core] ixgbe: " tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 10/14] mailbox: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] mailbox: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 11/14] scsi: lpfc: Use irq_set_affinity Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] scsi: lpfc: Use irq_set_affinity() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 12/14] hinic: Use irq_set_affinity_and_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] hinic: Use irq_set_affinity_and_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 13/14] net/mlx5: Use irq_set_affinity_and_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] net/mlx5: Use irq_set_affinity_and_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 14/14] net/mlx4: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] net/mlx4: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-13 14:34 ` [PATCH v6 00/14] genirq: Cleanup the abuse of irq_set_affinity_hint() Nitesh Lal
2021-11-24 19:30 ` Thomas Gleixner
2021-11-24 22:16 ` Nitesh Lal
2021-12-10 13:51 ` Nitesh Lal
2021-12-10 18:44 ` Thomas Gleixner
2021-12-10 18:54 ` Nitesh Lal
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