netdev - [PATCH v5 08/14] be2net: Use irq_update_affinity

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210720232624.1493424-9-nitesh@redhat.com>
Date:   Tue, 20 Jul 2021 19:26:18 -0400
From:   Nitesh Narayan Lal <nitesh@...hat.com>
To:     linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
        intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
        linux-api@...r.kernel.org, linux-pci@...r.kernel.org,
        tglx@...utronix.de, jesse.brandeburg@...el.com,
        robin.murphy@....com, mtosatti@...hat.com, mingo@...nel.org,
        jbrandeb@...nel.org, frederic@...nel.org, juri.lelli@...hat.com,
        abelits@...vell.com, bhelgaas@...gle.com, rostedt@...dmis.org,
        peterz@...radead.org, davem@...emloft.net,
        akpm@...ux-foundation.org, sfr@...b.auug.org.au,
        stephen@...workplumber.org, rppt@...ux.vnet.ibm.com,
        chris.friesen@...driver.com, maz@...nel.org, nhorman@...driver.com,
        pjwaskiewicz@...il.com, sassmann@...hat.com, thenzl@...hat.com,
        kashyap.desai@...adcom.com, sumit.saxena@...adcom.com,
        shivasharan.srikanteshwara@...adcom.com,
        sathya.prakash@...adcom.com, sreekanth.reddy@...adcom.com,
        suganath-prabu.subramani@...adcom.com, james.smart@...adcom.com,
        dick.kennedy@...adcom.com, jkc@...hat.com, faisal.latif@...el.com,
        shiraz.saleem@...el.com, tariqt@...dia.com, ahleihel@...hat.com,
        kheib@...hat.com, borisp@...dia.com, saeedm@...dia.com,
        benve@...co.com, govind@....com, jassisinghbrar@...il.com,
        ajit.khaparde@...adcom.com, sriharsha.basavapatna@...adcom.com,
        somnath.kotur@...adcom.com, nilal@...hat.com,
        tatyana.e.nikolova@...el.com, mustafa.ismail@...el.com,
        ahs3@...hat.com, leonro@...dia.com,
        chandrakanth.patil@...adcom.com, bjorn.andersson@...aro.org,
        chunkuang.hu@...nel.org, yongqiang.niu@...iatek.com,
        baolin.wang7@...il.com, poros@...hat.com, minlei@...hat.com,
        emilne@...hat.com, jejb@...ux.ibm.com, martin.petersen@...cle.com,
        _govind@....com, kabel@...nel.org, viresh.kumar@...aro.org,
        Tushar.Khandelwal@....com, kuba@...nel.org
Subject: [PATCH v5 08/14] be2net: Use irq_update_affinity_hint

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@...hat.com>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 361c1c87c183..ece6c0692826 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3491,7 +3491,7 @@ static int be_msix_register(struct be_adapter *adapter)
 		if (status)
 			goto err_msix;
 
-		irq_set_affinity_hint(vec, eqo->affinity_mask);
+		irq_update_affinity_hint(vec, eqo->affinity_mask);
 	}
 
 	return 0;
@@ -3552,7 +3552,7 @@ static void be_irq_unregister(struct be_adapter *adapter)
 	/* MSIx */
 	for_all_evt_queues(adapter, eqo, i) {
 		vec = be_msix_vec_get(adapter, eqo);
-		irq_set_affinity_hint(vec, NULL);
+		irq_update_affinity_hint(vec, NULL);
 		free_irq(vec, eqo);
 	}
 
-- 
2.27.0