linux-kernel - [PATCH] PCI: hv: Take a const cpumask in hv_compose_msi_req_get

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Date:   Thu,  7 Jul 2022 19:49:31 -0500
From:   Samuel Holland <samuel@...lland.org>
To:     Marc Zyngier <maz@...nel.org>,
        Michael Kelley <mikelley@...rosoft.com>
Cc:     Samuel Holland <samuel@...lland.org>,
        kernel test robot <lkp@...el.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Dexuan Cui <decui@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>, linux-hyperv@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: [PATCH] PCI: hv: Take a const cpumask in hv_compose_msi_req_get_cpu()

The cpumask that is passed to this function ultimately comes from
irq_data_get_effective_affinity_mask(), which was recently changed to
return a const cpumask pointer. The first level of functions handling
the affinity mask were updated, but not this helper function.

Fixes: 4d0b8298818b ("genirq: Return a const cpumask from irq_data_get_affinity_mask")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Samuel Holland <samuel@...lland.org>
---

 drivers/pci/controller/pci-hyperv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
index aebada45569b..e7c6f6629e7c 100644
--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
@@ -1635,7 +1635,7 @@ static u32 hv_compose_msi_req_v1(
  * Create MSI w/ dummy vCPU set targeting just one vCPU, overwritten
  * by subsequent retarget in hv_irq_unmask().
  */
-static int hv_compose_msi_req_get_cpu(struct cpumask *affinity)
+static int hv_compose_msi_req_get_cpu(const struct cpumask *affinity)
 {
 	return cpumask_first_and(affinity, cpu_online_mask);
 }
-- 
2.35.1