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net: ethernet: aquantia: call set_irq_affinity_hint before free_irq

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When a network interface controlled by the aquantia ethernet driver is brought
down a warning is output in dmesg (see below).

The problem is that aq_pci_func_free_irqs() is calling free_irq() before it is
calling irq_set_affinity_hint().

WARNING: CPU: 4 PID: 10068 at kernel/irq/manage.c:1503 __free_irq+0x24d/0x2b0
<snip>
Call Trace:
 dump_stack+0x63/0x87
 __warn+0xd1/0xf0
 warn_slowpath_null+0x1d/0x20
 __free_irq+0x24d/0x2b0
 free_irq+0x39/0x90
 aq_pci_func_free_irqs+0x52/0xa0 [atlantic]
 aq_nic_stop+0xca/0xd0 [atlantic]
 aq_ndev_close+0x1d/0x40 [atlantic]
 __dev_close_many+0x99/0x100
 __dev_close+0x67/0xb0
<snip>

Fixes: 36a4a50f40 ("net: ethernet: aquantia: switch to pci_alloc_irq_vectors")

Cc: Christoph Hellwig <hch@lst.de>
Cc: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: David Arcari <darcari@redhat.com>
Tested-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Arcari 2017-03-09 13:28:33 -05:00 committed by David S. Miller
parent 609a807a95
commit ecd052250b
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
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@ -213,9 +213,9 @@ void aq_pci_func_free_irqs(struct aq_pci_func_s *self)
if (!((1U << i) & self->msix_entry_mask))
continue;
free_irq(pci_irq_vector(pdev, i), self->aq_vec[i]);
if (pdev->msix_enabled)
irq_set_affinity_hint(pci_irq_vector(pdev, i), NULL);
free_irq(pci_irq_vector(pdev, i), self->aq_vec[i]);
self->msix_entry_mask &= ~(1U << i);
}
}