linux-kernel - [PATCH v4 08/13] drm/v3d: Fix builds with CONFIG_TRANSPARENT

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Message-ID: <20251015153018.43735-9-loic.molinari@collabora.com>
Date: Wed, 15 Oct 2025 17:30:12 +0200
From: Loïc Molinari <loic.molinari@...labora.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>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@...el.com>,
	Tvrtko Ursulin <tursulin@...ulin.net>,
	Boris Brezillon <boris.brezillon@...labora.com>,
	Rob Herring <robh@...nel.org>,
	Steven Price <steven.price@....com>,
	Liviu Dudau <liviu.dudau@....com>,
	Melissa Wen <mwen@...lia.com>,
	Maíra Canal <mcanal@...lia.com>,
	Hugh Dickins <hughd@...gle.com>,
	Baolin Wang <baolin.wang@...ux.alibaba.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Loïc Molinari <loic.molinari@...labora.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Mikołaj Wasiak <mikolaj.wasiak@...el.com>,
	Christian Brauner <brauner@...nel.org>,
	Nitin Gote <nitin.r.gote@...el.com>,
	Andi Shyti <andi.shyti@...ux.intel.com>,
	Jonathan Corbet <corbet@....net>,
	Christopher Healy <healych@...zon.com>,
	Matthew Wilcox <willy@...radead.org>,
	Bagas Sanjaya <bagasdotme@...il.com>
Cc: linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	intel-gfx@...ts.freedesktop.org,
	linux-mm@...ck.org,
	linux-doc@...r.kernel.org,
	kernel@...labora.com
Subject: [PATCH v4 08/13] drm/v3d: Fix builds with CONFIG_TRANSPARENT_HUGEPAGE=n

Don't declare "super_pages" on builds with CONFIG_TRANSPARENT_HUGEPAGE
disabled to prevent build error:

ERROR: modpost: "super_pages" [drivers/gpu/drm/v3d/v3d.ko] undefined!

Signed-off-by: Loïc Molinari <loic.molinari@...labora.com>
---
 drivers/gpu/drm/v3d/v3d_drv.h | 2 ++
 drivers/gpu/drm/v3d/v3d_gem.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
index 99a39329bb85..481502104391 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/drivers/gpu/drm/v3d/v3d_drv.h
@@ -564,7 +564,9 @@ extern const struct dma_fence_ops v3d_fence_ops;
 struct dma_fence *v3d_fence_create(struct v3d_dev *v3d, enum v3d_queue q);
 
 /* v3d_gem.c */
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
 extern bool super_pages;
+#endif
 int v3d_gem_init(struct drm_device *dev);
 void v3d_gem_destroy(struct drm_device *dev);
 void v3d_reset_sms(struct v3d_dev *v3d);
diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
index 635ff0fabe7e..0039063eb8b2 100644
--- a/drivers/gpu/drm/v3d/v3d_gem.c
+++ b/drivers/gpu/drm/v3d/v3d_gem.c
@@ -269,7 +269,9 @@ v3d_huge_mnt_init(struct v3d_dev *v3d)
 	 * match our usecase.
 	 */
 
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
 	if (super_pages)
+#endif
 		err = drm_gem_huge_mnt_create(&v3d->drm, "within_size");
 
 	if (v3d->drm.huge_mnt)
-- 
2.47.3