[PATCH V4] iommu/arm-smmu-v2: Workaround for ThunderX errata#27704

[Radha Mohan]

On Thu, Mar 24, 2016 at 11:29 AM, Chalamarla, Tirumalesh
<Tirumalesh.Chalamarla at caviumnetworks.com> wrote:
> Thanks.
>
>
>
>
> On 3/24/16, 10:51 AM, "Will Deacon" <will.deacon at arm.com> wrote:
>
>>On Thu, Mar 24, 2016 at 05:36:39PM +0000, Chalamarla, Tirumalesh wrote:
>>> Do you want me to resend it with path version number change?
>>
>>Shouldn't be any need. I've queued this locally, and will push out when
>>I update my repo after the merge window.
>>

Minor change that affects the kernel compilation.
I think it makes sense to resubmit the patch.

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 6ed7c3e..4aca5c1 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1834,8 +1834,8 @@ static int arm_smmu_device_dt_probe(struct
platform_device *pdev)
         * asid/vmid space.
         */
        if (of_device_is_compatible(dev->of_node, "cavium,smmu-v2")) {
-               smmu->cavium_id_base = atomic_read(cavium_smmu_context_count);
-               atomic_add(smmu->num_context_banks, cavium_smmu_context_count);
+               smmu->cavium_id_base = atomic_read(&cavium_smmu_context_count);
+               atomic_add(smmu->num_context_banks, &cavium_smmu_context_count);
        }

        list_add(&smmu->list, &arm_smmu_devices);

>>Will
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