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| author | Arnd Bergmann <[email protected]> | 2019-06-17 13:30:54 +0000 |
|---|---|---|
| committer | Joerg Roedel <[email protected]> | 2019-06-18 15:24:42 +0000 |
| commit | 29fcea8ce7f3c16ebd267f8cb2f4a07887530aa9 (patch) | |
| tree | 87843c08754266b1e890b157ad2b21ff8d44ba18 /drivers/pci/controller/pci-host-common.c | |
| parent | iommu: Add padding to struct iommu_fault (diff) | |
| download | kernel-29fcea8ce7f3c16ebd267f8cb2f4a07887530aa9.tar.gz kernel-29fcea8ce7f3c16ebd267f8cb2f4a07887530aa9.zip | |
iommu: Fix integer truncation
On 32-bit architectures, phys_addr_t may be different from dma_add_t,
both smaller and bigger. This can lead to an overflow during an assignment
that clang warns about:
drivers/iommu/dma-iommu.c:230:10: error: implicit conversion from 'dma_addr_t' (aka 'unsigned long long') to
'phys_addr_t' (aka 'unsigned int') changes value from 18446744073709551615 to 4294967295 [-Werror,-Wconstant-conversion]
Use phys_addr_t here because that is the type that the variable was
declared as.
Fixes: aadad097cd46 ("iommu/dma: Reserve IOVA for PCIe inaccessible DMA address")
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Diffstat (limited to 'drivers/pci/controller/pci-host-common.c')
0 files changed, 0 insertions, 0 deletions