This is a note to let you know that I've just added the patch titled
mei: dma: silent the reject message
to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.
If you have any questions about this process, please let me know.
From 82e59cbe5fdc0d521f9037861af21af6d5814afd Mon Sep 17 00:00:00 2001
From: Tomas Winkler tomas.winkler@intel.com Date: Sun, 13 Jan 2019 14:24:46 +0200 Subject: mei: dma: silent the reject message
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 | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index 78c26cebf5d4..8f7616557c97 100644 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@ -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) { - dev_info(dev->dev, "hbm: dma setup response: failure = %d %s\n", - dma_setup_res->status, - mei_hbm_status_str(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", + status, + mei_hbm_status_str(status)); + } dev->hbm_f_dr_supported = 0; mei_dmam_ring_free(dev); }