linux-kernel - linux-next: build failure after merge of the iommufd tree

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Message-ID: <20230815210437.12bd89b0@canb.auug.org.au>
Date:   Tue, 15 Aug 2023 21:04:37 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Jason Gunthorpe <jgg@...dia.com>, Joerg Roedel <joro@...tes.org>
Cc:     Joerg Roedel <jroedel@...e.de>, Jason Gunthorpe <jgg@...pe.ca>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the iommufd tree

Hi all,

After merging the iommufd tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/iommu/iommu.c: In function 'iommu_device_register_bus':
drivers/iommu/iommu.c:335:15: error: too few arguments to function 'bus_iommu_probe'
  335 |         err = bus_iommu_probe(bus);
      |               ^~~~~~~~~~~~~~~
In file included from drivers/iommu/iommu.c:20:
include/linux/iommu.h:474:12: note: declared here
  474 | extern int bus_iommu_probe(const struct bus_type *bus,
      |            ^~~~~~~~~~~~~~~

Caused by commit

  23a1b46f15d5 ("iommufd/selftest: Make the mock iommu driver into a real driver")

interacting with commit

  2b4de976b360 ("iommu: Pass in the iommu_device to probe for in bus_iommu_probe()")

from the iommu tree.

I have applied the following fix up patch for today:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Tue, 15 Aug 2023 20:50:05 +1000
Subject: [PATCH] fix up for "iommufd/selftest: Make the mock iommu driver into a real driver"

interacting with commit

  2b4de976b360 ("iommu: Pass in the iommu_device to probe for in bus_iommu_probe()")

from the iommu tree.

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/iommu/iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 20c9a0501760..1e017e1bf5ea 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -332,7 +332,7 @@ int iommu_device_register_bus(struct iommu_device *iommu,
 	spin_unlock(&iommu_device_lock);
 
 	bus->iommu_ops = ops;
-	err = bus_iommu_probe(bus);
+	err = bus_iommu_probe(bus, iommu);
 	if (err) {
 		iommu_device_unregister_bus(iommu, bus, nb);
 		return err;
-- 
2.40.1

-- 
Cheers,
Stephen Rothwell

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