dongqiang 62a67b00a8 Fix Smmu IOVA contiguous checking error ...

To allocate larger buffer, MODS code is allocating noncontiguous pages
and then calls dma buffer api to do smmu mapping to get a continuous
iova address. This change will fix the error when the scatterlist's
dma  address is 0xffffffffffffffff, skip checking the sg since it's
already merged to the head node.

JIRA: TM-129

Signed-off-by: Carl Dong <carld@nvidia.com>
Change-Id: I45aa3b0afcf5c86179fb293cd48326b14c2f3efc
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2552672
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2023-04-03 13:27:52 +00:00

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