From: Yu Zhang <zhangyu1@linux.microsoft.com>
To: joro@8bytes.org
Cc: iommu@lists.linux.dev, linux-hyperv@vger.kernel.org,
linux-kernel@vger.kernel.org, lkp@intel.com,
oe-kbuild-all@lists.linux.dev, joerg.roedel@amd.com,
jgg@nvidia.com, will@kernel.org, robin.murphy@arm.com,
mhklinux@outlook.com, wei.liu@kernel.org,
jacob.pan@linux.microsoft.com,
easwar.hariharan@linux.microsoft.com
Subject: [PATCH 2/2] iommu/hyperv: Make hv_iommu_device static
Date: Thu, 15 Oct 2026 16:23:51 +0800 [thread overview]
Message-ID: <20261015082351.184252-3-zhangyu1@linux.microsoft.com> (raw)
In-Reply-To: <20261015082351.184252-1-zhangyu1@linux.microsoft.com>
Make hv_iommu_device static to give it internal linkage. This
pointer is only used within hv-iommu-guest.c, but previously
has external linkage without a prior declaration. This causes
sparse to warn that the symbol was not declared.
Fixes: 2690d4156b51 ("iommu/hyperv: Add para-virtualized IOMMU support for Hyper-V guest")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202610092126.TuSXnTYR-lkp@intel.com/
Signed-off-by: Yu Zhang <zhangyu1@linux.microsoft.com>
---
drivers/iommu/hyperv/hv-iommu-guest.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/hyperv/hv-iommu-guest.c b/drivers/iommu/hyperv/hv-iommu-guest.c
index fe06bd970621..876a22f21f1e 100644
--- a/drivers/iommu/hyperv/hv-iommu-guest.c
+++ b/drivers/iommu/hyperv/hv-iommu-guest.c
@@ -22,7 +22,7 @@
#include "iommu.h"
#include "../iommu-pages.h"
-struct hv_iommu_dev *hv_iommu_device;
+static struct hv_iommu_dev *hv_iommu_device;
/*
* Identity and blocking domains are static singletons: identity is a 1:1
--
2.52.0
next prev parent reply other threads:[~2026-10-15 8:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-15 8:23 [PATCH 0/2] iommu/hyperv: Fix guest IOMMU build issues Yu Zhang
2026-10-15 8:23 ` [PATCH 1/2] iommu/hyperv: Add missing PCI dependency for the guest IOMMU driver Yu Zhang
2026-10-15 8:23 ` Yu Zhang [this message]
2026-10-15 12:36 ` [PATCH 0/2] iommu/hyperv: Fix guest IOMMU build issues Jason Gunthorpe
2026-10-15 15:29 ` Jacob Pan
2026-10-15 15:52 ` Jörg Rödel
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