linux-kernel - [PATCH 5/7] drm/pan*: don't abuse current->group

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Message-ID: <aTV1maDfDvqgu1oT@redhat.com>
Date: Sun, 7 Dec 2025 13:39:53 +0100
From: Oleg Nesterov <oleg@...hat.com>
To: Todd Kjos <tkjos@...roid.com>, Martijn Coenen <maco@...roid.com>,
	Joel Fernandes <joelagnelf@...dia.com>,
	Christian Brauner <brauner@...nel.org>,
	Carlos Llamas <cmllamas@...gle.com>,
	Suren Baghdasaryan <surenb@...gle.com>,
	Felix Kuehling <Felix.Kuehling@....com>,
	Alex Deucher <alexander.deucher@....com>,
	Christian König <christian.koenig@....com>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Boris Brezillon <boris.brezillon@...labora.com>,
	Rob Herring <robh@...nel.org>, Steven Price <steven.price@....com>,
	Adrián Larumbe <adrian.larumbe@...labora.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Liviu Dudau <liviu.dudau@....com>, Jason Gunthorpe <jgg@...pe.ca>,
	Leon Romanovsky <leon@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH 5/7] drm/pan*: don't abuse current->group_leader

Cleanup and preparation to simplify the next changes.

Use current->tgid instead of current->group_leader->pid.

Signed-off-by: Oleg Nesterov <oleg@...hat.com>
---
 drivers/gpu/drm/panfrost/panfrost_gem.c | 2 +-
 drivers/gpu/drm/panthor/panthor_gem.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c
index 8041b65c6609..1ff1f2c8b726 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gem.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gem.c
@@ -17,7 +17,7 @@
 static void panfrost_gem_debugfs_bo_add(struct panfrost_device *pfdev,
 					struct panfrost_gem_object *bo)
 {
-	bo->debugfs.creator.tgid = current->group_leader->pid;
+	bo->debugfs.creator.tgid = current->tgid;
 	get_task_comm(bo->debugfs.creator.process_name, current->group_leader);
 
 	mutex_lock(&pfdev->debugfs.gems_lock);
diff --git a/drivers/gpu/drm/panthor/panthor_gem.c b/drivers/gpu/drm/panthor/panthor_gem.c
index fbde78db270a..29cc57efc4b9 100644
--- a/drivers/gpu/drm/panthor/panthor_gem.c
+++ b/drivers/gpu/drm/panthor/panthor_gem.c
@@ -27,7 +27,7 @@ static void panthor_gem_debugfs_bo_add(struct panthor_gem_object *bo)
 	struct panthor_device *ptdev = container_of(bo->base.base.dev,
 						    struct panthor_device, base);
 
-	bo->debugfs.creator.tgid = current->group_leader->pid;
+	bo->debugfs.creator.tgid = current->tgid;
 	get_task_comm(bo->debugfs.creator.process_name, current->group_leader);
 
 	mutex_lock(&ptdev->gems.lock);
-- 
2.52.0