[PATCH] drm/exynos/gem: Fix printk specifier for gem_object.size and dma_addr

From: Chen-Yu Tsai

Date: Wed Apr 08 2026 - 02:49:54 EST


In the recent change to use the GEM base object's size field instead of
the exynos_gem object's additional field, the printk format was not
adjusted for the change to size_t type. This causes a new warning on
platforms on which size_t is not unsigned long.

Fix this by using the correct "%zx" type.

While at it, fix the specifier for dma_addr so that the cast to unsigned
long is not longer needed.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202604081331.jSJQSVmg-lkp@xxxxxxxxx/
Fixes: 11e898373fba ("drm/exynos: Drop exynos_drm_gem.size field")
Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
---
This is only compile tested. Build for ARM 32-bit confirms the warning
is fixed. Sorry for the noise.

The commit hash used in the Fixes tag is the current one seen in
exynos-drm-next.
---
drivers/gpu/drm/exynos/exynos_drm_gem.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index d9d42809a1a9..f264e170bc26 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -66,8 +66,8 @@ static int exynos_drm_alloc_buf(struct exynos_drm_gem *exynos_gem, bool kvmap)
if (kvmap)
exynos_gem->kvaddr = exynos_gem->cookie;

- DRM_DEV_DEBUG_KMS(drm_dev_dma_dev(dev), "dma_addr(0x%lx), size(0x%lx)\n",
- (unsigned long)exynos_gem->dma_addr, exynos_gem->base.size);
+ DRM_DEV_DEBUG_KMS(drm_dev_dma_dev(dev), "dma_addr(%pad), size(0x%zx)\n",
+ &exynos_gem->dma_addr, exynos_gem->base.size);
return 0;
}

@@ -80,8 +80,8 @@ static void exynos_drm_free_buf(struct exynos_drm_gem *exynos_gem)
return;
}

- DRM_DEV_DEBUG_KMS(dev->dev, "dma_addr(0x%lx), size(0x%lx)\n",
- (unsigned long)exynos_gem->dma_addr, exynos_gem->base.size);
+ DRM_DEV_DEBUG_KMS(dev->dev, "dma_addr(%pad), size(0x%zx)\n",
+ &exynos_gem->dma_addr, exynos_gem->base.size);

dma_free_attrs(drm_dev_dma_dev(dev), exynos_gem->base.size, exynos_gem->cookie,
(dma_addr_t)exynos_gem->dma_addr,
--
2.53.0.1213.gd9a14994de-goog