linux-kernel - [PATCH 2/2] drm/imagination: Mark FWCCB_CMD_UPDATE

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Message-ID: <20260206-improve-bad-fwccb-cmd-v1-2-831a852ca127@imgtec.com>
Date: Fri, 6 Feb 2026 16:02:13 +0000
From: Matt Coster <matt.coster@...tec.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard
	<mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie
	<airlied@...il.com>, Simona Vetter <simona@...ll.ch>
CC: Frank Binns <frank.binns@...tec.com>,
        Brajesh Gupta
	<brajesh.gupta@...tec.com>,
        Alessio Belle <alessio.belle@...tec.com>,
        Alexandru Dadu <alexandru.dadu@...tec.com>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        "Matt
 Coster" <matt.coster@...tec.com>
Subject: [PATCH 2/2] drm/imagination: Mark FWCCB_CMD_UPDATE_STATS as known

Suppress the "unknown type" warning when processing a FWCCB command of
type CMD_UPDATE_STATS which is known but (currently) unused.

Signed-off-by: Matt Coster <matt.coster@...tec.com>
---
 drivers/gpu/drm/imagination/pvr_ccb.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/imagination/pvr_ccb.c b/drivers/gpu/drm/imagination/pvr_ccb.c
index 2f4356a1e69f..9d4464583129 100644
--- a/drivers/gpu/drm/imagination/pvr_ccb.c
+++ b/drivers/gpu/drm/imagination/pvr_ccb.c
@@ -158,6 +158,14 @@ process_fwccb_command(struct pvr_device *pvr_dev, struct rogue_fwif_fwccb_cmd *c
 		pvr_free_list_process_grow_req(pvr_dev, &cmd->cmd_data.cmd_free_list_gs);
 		break;
 
+	case ROGUE_FWIF_FWCCB_CMD_UPDATE_STATS:
+		/*
+		 * We currently have no infrastructure for processing these
+		 * stats. It may be added in the future, but for now just
+		 * suppress the "unknown" warning when receiving this command.
+		 */
+		break;
+
 	default:
 		drm_info(drm_dev, "Received unknown FWCCB command (type=%d)\n",
 			 cmd->cmd_type & ~ROGUE_CMD_MAGIC_DWORD_MASK);

-- 
2.52.0