Commit 6fa1efea authored by Deming Wang's avatar Deming Wang Committed by Michael Ellerman
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KVM: PPC: Book3s: Use arg->size directly in kvm_vm_ioctl_create_spapr_tce() 



The size variable is just a copy of args->size, neither size nor args
are modifed, so just use args->size directly.

Signed-off-by: default avatarDeming Wang <wangdeming@inspur.com>
[mpe: Reword change log]
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220703172932.11329-1-wangdeming@inspur.com
parent 392a58f1

arch/powerpc/kvm/book3s_64_vio.c

+3 −3
Original line number Diff line number Diff line
@@ -294,14 +294,14 @@ long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, 
	struct kvmppc_spapr_tce_table *stt = NULL;

	struct kvmppc_spapr_tce_table *siter;

	struct mm_struct *mm = kvm->mm;

	unsigned long npages, size = args->size;

	unsigned long npages;

	int ret;



	if (!args->size || args->page_shift < 12 || args->page_shift > 34 ||

		(args->offset + args->size > (ULLONG_MAX >> args->page_shift)))

		return -EINVAL;



	npages = kvmppc_tce_pages(size);

	npages = kvmppc_tce_pages(args->size);

	ret = account_locked_vm(mm, kvmppc_stt_pages(npages), true);

	if (ret)

		return ret;
@@ -314,7 +314,7 @@ long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, 
	stt->liobn = args->liobn;

	stt->page_shift = args->page_shift;

	stt->offset = args->offset;

	stt->size = size;

	stt->size = args->size;

	stt->kvm = kvm;

	mutex_init(&stt->alloc_lock);

	INIT_LIST_HEAD_RCU(&stt->iommu_tables);