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nfp: Use IRQF_NO_AUTOEN flag in request_irq()

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[ Upstream commit daaba19d357f0900b303a530ced96c78086267ea ]

disable_irq() after request_irq() still has a time gap in which
interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will
disable IRQ auto-enable when request IRQ.

Reviewed-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Link: https://patch.msgid.link/20240911094445.1922476-4-ruanjinjie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jinjie Ruan 2024-09-11 17:44:45 +08:00 committed by Greg Kroah-Hartman
parent 1756918f51
commit aa4e9056df
1 changed files with 2 additions and 3 deletions
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5
drivers/net/ethernet/netronome/nfp/nfp_net_common.c
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@ -2631,8 +2631,8 @@ nfp_net_prepare_vector(struct nfp_net *nn, struct nfp_net_r_vector *r_vec,
snprintf(r_vec->name, sizeof(r_vec->name),
"%s-rxtx-%d", nfp_net_name(nn), idx);
err = request_irq(r_vec->irq_vector, r_vec->handler, 0, r_vec->name,
r_vec);
err = request_irq(r_vec->irq_vector, r_vec->handler, IRQF_NO_AUTOEN,
r_vec->name, r_vec);
if (err) {
if (nn->dp.netdev)
netif_napi_del(&r_vec->napi);
@ -2642,7 +2642,6 @@ nfp_net_prepare_vector(struct nfp_net *nn, struct nfp_net_r_vector *r_vec,
nn_err(nn, "Error requesting IRQ %d\n", r_vec->irq_vector);
return err;
}
disable_irq(r_vec->irq_vector);
irq_set_affinity_hint(r_vec->irq_vector, &r_vec->affinity_mask);