scsi: vmw_pvscsi: Silence dma mapping errors (d8dd7d76) · Commits · 戴 / test

These errors typically occur with swiotlb when the swiotlb buffer is full. But they are transient and would typically unnecessarily worry a user. Instead of errors, print debug messages. Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Link: https://lore.kernel.org/r/20191203193052.7583-2-thomas_os@shipmail.org Acked-by:

Jim Gill <jgill@vmware.com> Signed-off-by:

Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by:

Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/vmw_pvscsi.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -365,7 +365,7 @@ static int pvscsi_map_buffers(struct pvscsi_adapter *adapter,
		int segs = scsi_dma_map(cmd);

		if (segs == -ENOMEM) {
		scmd_printk(KERN_ERR, cmd,
		scmd_printk(KERN_DEBUG, cmd,
		"vmw_pvscsi: Failed to map cmd sglist for DMA.\n");
		return -ENOMEM;
		} else if (segs > 1) {
		@@ -392,7 +392,7 @@ static int pvscsi_map_buffers(struct pvscsi_adapter *adapter,
		ctx->dataPA = dma_map_single(&adapter->dev->dev, sg, bufflen,
		cmd->sc_data_direction);
		if (dma_mapping_error(&adapter->dev->dev, ctx->dataPA)) {
		scmd_printk(KERN_ERR, cmd,
		scmd_printk(KERN_DEBUG, cmd,
		"vmw_pvscsi: Failed to map direct data buffer for DMA.\n");
		return -ENOMEM;
		}
		@@ -725,7 +725,7 @@ static int pvscsi_queue_ring(struct pvscsi_adapter *adapter,
		cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE,
		DMA_FROM_DEVICE);
		if (dma_mapping_error(&adapter->dev->dev, ctx->sensePA)) {
		scmd_printk(KERN_ERR, cmd,
		scmd_printk(KERN_DEBUG, cmd,
		"vmw_pvscsi: Failed to map sense buffer for DMA.\n");
		ctx->sensePA = 0;
		return -ENOMEM;

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