dma_alloc_coherent allocates memory that can be used by the cpu and the
device at the same time, calls to pci_dma_sync_* are not required, and
in fact actively harmful on some architectures like arm.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/scsi/lpfc/lpfc_bsg.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c
index d53a704c66d1..7bd7ae86bed5 100644
--- a/drivers/scsi/lpfc/lpfc_bsg.c
+++ b/drivers/scsi/lpfc/lpfc_bsg.c
@@ -2844,9 +2844,6 @@ diag_cmd_data_alloc(struct lpfc_hba *phba,
if (nocopydata) {
bpl->tus.f.bdeFlags = 0;
- pci_dma_sync_single_for_device(phba->pcidev,
- dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE);
-
} else {
memset((uint8_t *)dmp->dma.virt, 0, cnt);
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
--
2.19.1
