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Commit 240d6f53 authored by Chris Goldsworthy's avatar Chris Goldsworthy
Browse files

iommu/arm-smmu: Replace while loop with for_each_set_bit 



Switch out a while loop that loops over the set bits in a bitmap with
for_each_set_bit.

Change-Id: I8843a0b36906979a09122a8ccb07c8081278bf3b
Signed-off-by: default avatarChris Goldsworthy <cgoldswo@codeaurora.org>
parent aa4926dd

drivers/iommu/arm-smmu.c

+4 −4
Original line number Diff line number Diff line
@@ -5053,7 +5053,7 @@ static void __arm_smmu_tlb_sync_timeout(struct arm_smmu_device *smmu) 
	tcu_sync_pending = FIELD_GET(TCU_SYNC_IN_PRGSS, sync_inv_progress);



	if (__ratelimit(&_rs)) {

		unsigned long tbu_id, tbus_t = tbu_ids;

		unsigned long tbu_id;



		dev_err(smmu->dev,

			"TBU ACK 0x%x TBU PWR 0x%x TCU sync_inv 0x%x\n",
@@ -5063,11 +5063,11 @@ static void __arm_smmu_tlb_sync_timeout(struct arm_smmu_device *smmu) 
			tcu_inv_pending?"pending":"completed",

			tcu_sync_pending?"pending":"completed");



		while (tbus_t) {

		for_each_set_bit(tbu_id, (unsigned long *) &tbu_ids,

				 sizeof(tbu_ids) * BITS_PER_BYTE) {



			struct qsmmuv500_tbu_device *tbu;



			tbu_id = __ffs(tbus_t);

			tbus_t = tbus_t & ~(1 << tbu_id);

			tbu = qsmmuv500_find_tbu(smmu,

						 (u16)(tbu_id << TBUID_SHIFT));

			if (tbu) {