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From: Arnd Bergmann <arnd@arndb.de>
To: "James (Qian) Wang" <james.qian.wang@arm.com>,
	Liviu Dudau <liviu.dudau@arm.com>,
	Brian Starkey <brian.starkey@arm.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>
Cc: Arnd Bergmann <arnd@arndb.de>,
	"Lowry Li (Arm Technology China)" <Lowry.Li@arm.com>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH] drm/komeda: fix size_t format string
Date: Mon, 17 Jun 2019 14:49:18 +0200	[thread overview]
Message-ID: <20190617125002.1312331-1-arnd@arndb.de> (raw)

The debug output uses the wrong format string for printing a size_t:

In file included from include/drm/drm_mm.h:49,
                 from include/drm/drm_vma_manager.h:26,
                 from include/drm/drm_gem.h:40,
                 from drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c:9:
drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c: In function 'komeda_fb_afbc_size_check':
drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c:96:17: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Werror=format=]
   DRM_DEBUG_KMS("afbc size check failed, obj_size: 0x%lx. min_size 0x%x.\n",

This is harmless in the kernel as size_t and long are always the same
width, but it's always better to use the correct format string
to shut up the warning.

Fixes: 9ccf536e53cb ("drm/komeda: Added AFBC support for komeda driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c
index abc8c0ccc053..58ff34e718d0 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c
@@ -93,7 +93,7 @@ komeda_fb_afbc_size_check(struct komeda_fb *kfb, struct drm_file *file,
 			       AFBC_SUPERBLK_ALIGNMENT);
 	min_size = kfb->afbc_size + fb->offsets[0];
 	if (min_size > obj->size) {
-		DRM_DEBUG_KMS("afbc size check failed, obj_size: 0x%lx. min_size 0x%x.\n",
+		DRM_DEBUG_KMS("afbc size check failed, obj_size: 0x%zx. min_size 0x%x.\n",
 			      obj->size, min_size);
 		goto check_failed;
 	}
@@ -137,7 +137,7 @@ komeda_fb_none_afbc_size_check(struct komeda_dev *mdev, struct komeda_fb *kfb,
 		min_size = komeda_fb_get_pixel_addr(kfb, 0, fb->height, i)
 			 - to_drm_gem_cma_obj(obj)->paddr;
 		if (obj->size < min_size) {
-			DRM_DEBUG_KMS("The fb->obj[%d] size: %ld lower than the minimum requirement: %d.\n",
+			DRM_DEBUG_KMS("The fb->obj[%d] size: %zd lower than the minimum requirement: %d.\n",
 				      i, obj->size, min_size);
 			return -EINVAL;
 		}
-- 
2.20.0


             reply	other threads:[~2019-06-17 12:50 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-17 12:49 Arnd Bergmann [this message]
2019-06-17 13:32 ` Liviu Dudau
2019-06-18  2:04 ` james qian wang (Arm Technology China)

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