mei: dma: silent the reject message (82e59cbe) · Commits · 戴 / test

Not all FW versions support DMA on their first release, hence it is normal behavior to receive a reject response upon DMA setup request. In order to prevent confusion, the DMA setup reject message is printed only in debug level. Cc: <stable@vger.kernel.org> #v5.0+ Signed-off-by:

Tomas Winkler <tomas.winkler@intel.com> Signed-off-by:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/mei/hbm.c

+9 −3

Original line number	Diff line number	Diff line
		@@ -1187,9 +1187,15 @@ int mei_hbm_dispatch(struct mei_device dev, struct mei_msg_hdr hdr)
		dma_setup_res = (struct hbm_dma_setup_response *)mei_msg;

		if (dma_setup_res->status) {
		u8 status = dma_setup_res->status;

		if (status == MEI_HBMS_NOT_ALLOWED) {
		dev_dbg(dev->dev, "hbm: dma setup not allowed\n");
		} else {
		dev_info(dev->dev, "hbm: dma setup response: failure = %d %s\n",
		dma_setup_res->status,
		mei_hbm_status_str(dma_setup_res->status));
		status,
		mei_hbm_status_str(status));
		}
		dev->hbm_f_dr_supported = 0;
		mei_dmam_ring_free(dev);
		}

Admin message