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| author | Carlos Llamas <cmllamas@google.com> | 2026-01-05 19:07:46 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-23 11:21:36 +0100 |
| commit | d6a25e6ee3ec37a9bcba6ca00c4e7b397250acf7 (patch) | |
| tree | e25de9ae9b01e146a40650c9b6b23cdfdd7e25fa | |
| parent | 2d1bf4a7b8ed87ab32adaa40f53dfe332755451d (diff) | |
| download | linux-d6a25e6ee3ec37a9bcba6ca00c4e7b397250acf7.tar.gz linux-d6a25e6ee3ec37a9bcba6ca00c4e7b397250acf7.tar.bz2 linux-d6a25e6ee3ec37a9bcba6ca00c4e7b397250acf7.zip | |
iommu/sva: include mmu_notifier.h header
commit 4b5c493ff762bb0433529ca6870b284f0a2a5ca8 upstream.
A call to mmu_notifier_arch_invalidate_secondary_tlbs() was introduced in
commit e37d5a2d60a3 ("iommu/sva: invalidate stale IOTLB entries for kernel
address space") but without explicitly adding its corresponding header
file <linux/mmu_notifier.h>. This was evidenced while trying to enable
compile testing support for IOMMU_SVA:
config IOMMU_SVA
select IOMMU_MM_DATA
- bool
+ bool "Shared Virtual Addressing" if COMPILE_TEST
The thing is for certain architectures this header file is indirectly
included via <asm/tlbflush.h>. However, for others such as 32-bit arm the
header is missing and it results in a build failure:
$ make ARCH=arm allmodconfig
[...]
drivers/iommu/iommu-sva.c:340:3: error: call to undeclared function 'mmu_notifier_arch_invalidate_secondary_tlbs' [...]
340 | mmu_notifier_arch_invalidate_secondary_tlbs(iommu_mm->mm, start, end);
| ^
Fix this by including the appropriate header file.
Link: https://lkml.kernel.org/r/20260105190747.625082-1-cmllamas@google.com
Fixes: e37d5a2d60a3 ("iommu/sva: invalidate stale IOTLB entries for kernel address space")
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Cc: Baolu Lu <baolu.lu@linux.intel.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Kevin Tian <kevin.tian@intel.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Vasant Hegde <vasant.hegde@amd.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/iommu/iommu-sva.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iommu/iommu-sva.c b/drivers/iommu/iommu-sva.c index d236aef80a8d..e1e63c2be82b 100644 --- a/drivers/iommu/iommu-sva.c +++ b/drivers/iommu/iommu-sva.c @@ -3,6 +3,7 @@ * Helpers for IOMMU drivers implementing SVA */ #include <linux/mmu_context.h> +#include <linux/mmu_notifier.h> #include <linux/mutex.h> #include <linux/sched/mm.h> #include <linux/iommu.h> |