wil6210: fix iommu_unmap in IPA mode



With SMMU enabled, when unmapping uc_db_pa unaligned address is used.
Use rounddown on uc_db_pa when unmapping it.

Change-Id: I1810efb4037b1202a20918cfc1eda8e2a2f9f34b
Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>

parent 99a8045e

drivers/net/wireless/ath/wil6210/ipa.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -906,7 +906,8 @@ static int wil_ipa_wigig_init(struct wil_ipa *ipa)

		err:
		if (ipa->smmu_enabled && ipa->uc_db_pa) {
		iommu_unmap(ipa->domain, ipa->uc_db_pa, PAGE_SIZE);
		iommu_unmap(ipa->domain, rounddown(ipa->uc_db_pa, PAGE_SIZE),
		PAGE_SIZE);
		ipa->uc_db_pa = 0;
		}
		ipa_wigig_cleanup();