linux-kernel - [PATCH] drm/vc4: use %z format string for size

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Date:   Thu,  2 Nov 2017 12:20:43 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Eric Anholt <eric@...olt.net>, David Airlie <airlied@...ux.ie>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Cihangir Akturk <cakturk@...il.com>,
        Dave Airlie <airlied@...hat.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/vc4: use %z format string for size_t

Printing a size_t variable needs to use the %z format string modifier
rather than %l, otherwise we get this warning on 64-bit architectures:

drivers/gpu/drm/vc4/vc4_bo.c: In function 'vc4_bo_stats_debugfs':
drivers/gpu/drm/vc4/vc4_bo.c:91:26: error: format '%d' expects argument of type 'int', but argument 4 has type 'size_t {aka long unsigned int}' [-Werror=format=]

Fixes: b9f19259b84d ("drm/vc4: Add the DRM_IOCTL_VC4_GEM_MADVISE ioctl")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/vc4/vc4_bo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
index 3c3d11236910..4ae45d7dac42 100644
--- a/drivers/gpu/drm/vc4/vc4_bo.c
+++ b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -88,11 +88,11 @@ int vc4_bo_stats_debugfs(struct seq_file *m, void *unused)
 
 	mutex_lock(&vc4->purgeable.lock);
 	if (vc4->purgeable.num)
-		seq_printf(m, "%30s: %6dkb BOs (%d)\n", "userspace BO cache",
+		seq_printf(m, "%30s: %6zdkb BOs (%d)\n", "userspace BO cache",
 			   vc4->purgeable.size / 1024, vc4->purgeable.num);
 
 	if (vc4->purgeable.purged_num)
-		seq_printf(m, "%30s: %6dkb BOs (%d)\n", "total purged BO",
+		seq_printf(m, "%30s: %6zdkb BOs (%d)\n", "total purged BO",
 			   vc4->purgeable.purged_size / 1024,
 			   vc4->purgeable.purged_num);
 	mutex_unlock(&vc4->purgeable.lock);
-- 
2.9.0