net: libwx: fix alloc msix vectors failed

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[ Upstream commit 69197dfc64 ]

driver needs queue msix vectors and one misc irq vector,
but only queue vectors need irq affinity.
when num_online_cpus is less than chip max msix vectors,
driver will acquire (num_online_cpus + 1) vecotrs, and
call pci_alloc_irq_vectors_affinity functions with affinity
params without setting pre_vectors or post_vectors, it will
cause return error code -ENOSPC.
Misc irq vector is vector 0, driver need to set affinity params
.pre_vectors = 1.

Fixes: 3f70318611 ("net: libwx: Add irq flow functions")
Signed-off-by: Duanqiang Wen <duanqiangwen@net-swift.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Duanqiang Wen 2024-04-18 10:15:56 +08:00 • committed by Greg Kroah-Hartman

parent 2122198537

commit 3ccbec645d

1 changed files with 1 additions and 1 deletions

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drivers/net/ethernet/wangxun/libwx/wx_lib.c

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