[PATCH AUTOSEL 6.6 056/139] nfp: Use IRQF_NO_AUTOEN flag in request_irq()

[Sasha Levin]

From: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>

[ 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@xxxxxxxxxxxx>
Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
Link: https://patch.msgid.link/20240911094445.1922476-4-ruanjinjie@xxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index f2085340a1cfe..fceb4abea2365 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -821,14 +821,13 @@ 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) {
 		nfp_net_napi_del(&nn->dp, 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);
 
-- 
2.43.0