linux-kernel - [PATCH] drm/panthor: Avoid showing imported BO as exported in DebugFS output

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Message-Id: <20251216153242.1042613-1-akash.goel@arm.com>
Date: Tue, 16 Dec 2025 15:32:42 +0000
From: Akash Goel <akash.goel@....com>
To: boris.brezillon@...labora.com,
	liviu.dudau@....com,
	steven.price@....com
Cc: dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	daniel@...ll.ch,
	nd@....com,
	Akash Goel <akash.goel@....com>
Subject: [PATCH] drm/panthor: Avoid showing imported BO as exported in DebugFS output

The "gems" DebugFS file shows the device-wide list of DRM GEM objects.
It displays various information about an object, including if it is
PRIME imported, PRIME exported.
This commit fixes the debugfs_bo_print() function to prevent an imported
BO from also being shown as exported in the DebugFS file output.
Both 'import_attach' and 'dma_buf' fields will not be NULL for an
imported BO.

Fixes: a3707f53eb3f ("drm/panthor: show device-wide list of DRM GEM objects over DebugFS")
Signed-off-by: Akash Goel <akash.goel@....com>
---
 drivers/gpu/drm/panthor/panthor_gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panthor/panthor_gem.c b/drivers/gpu/drm/panthor/panthor_gem.c
index b61908fd508a..5dd92cdcf316 100644
--- a/drivers/gpu/drm/panthor/panthor_gem.c
+++ b/drivers/gpu/drm/panthor/panthor_gem.c
@@ -668,7 +668,7 @@ static void panthor_gem_debugfs_bo_print(struct panthor_gem_object *bo,
 
 	if (bo->base.base.import_attach)
 		gem_state_flags |= PANTHOR_DEBUGFS_GEM_STATE_FLAG_IMPORTED;
-	if (bo->base.base.dma_buf)
+	else if (bo->base.base.dma_buf)
 		gem_state_flags |= PANTHOR_DEBUGFS_GEM_STATE_FLAG_EXPORTED;
 
 	seq_printf(m, "0x%-8x 0x%-10x", gem_state_flags, gem_usage_flags);
-- 
2.25.1