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

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Message-ID: <20211012144639.0af3457c@canb.auug.org.au>
Date:   Tue, 12 Oct 2021 14:46:39 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Joerg Roedel <joro@...tes.org>
Cc:     Robin Murphy <robin.murphy@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Marc Zyngier <maz@...nel.org>,
        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 iommu tree

Hi all,

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

drivers/iommu/apple-dart.c: In function 'apple_dart_get_resv_regions':
drivers/iommu/apple-dart.c:758:2: error: implicit declaration of function 'iommu_dma_get_resv_regions'; did you mean 'iommu_get_resv_regions'? [-Werror=implicit-function-declaration]
  758 |  iommu_dma_get_resv_regions(dev, head);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~
      |  iommu_get_resv_regions
cc1: all warnings being treated as errors

Caused by commit

  b2b2781a9755 ("iommu/dart: Clean up IOVA cookie crumbs")

interactig with commit

  05dc551614a4 ("iommu/dart: Exclude MSI doorbell from PCIe device IOVA range")

from the pci tree.

I have applied the following merge fix patch.

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Tue, 12 Oct 2021 14:40:49 +1100
Subject: [PATCH] fix for "iommu/dart: Exclude MSI doorbell from PCIe device
 IOVA range"

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

diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c
index 912be9b7669c..280ff8df728d 100644
--- a/drivers/iommu/apple-dart.c
+++ b/drivers/iommu/apple-dart.c
@@ -15,6 +15,7 @@
 #include <linux/bitfield.h>
 #include <linux/clk.h>
 #include <linux/dev_printk.h>
+#include <linux/dma-iommu.h>
 #include <linux/dma-mapping.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
-- 
2.33.0

-- 
Cheers,
Stephen Rothwell

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