nagai/kernel
3
0
Fork 0
forked from mirrors/linux
Code Pull requests Activity

drm/virtio: use %llu format string form atomic64_t

Browse source 
The virtgpu driver prints the last_seq variable using the %ld or
%lu format string, which does not work correctly on all architectures
and causes this compiler warning on ARM:

drivers/gpu/drm/virtio/virtgpu_fence.c: In function 'virtio_timeline_value_str':
drivers/gpu/drm/virtio/virtgpu_fence.c:64:22: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'long long int' [-Wformat=]
  snprintf(str, size, "%lu", atomic64_read(&fence->drv->last_seq));
                      ^
drivers/gpu/drm/virtio/virtgpu_debugfs.c: In function 'virtio_gpu_debugfs_irq_info':
drivers/gpu/drm/virtio/virtgpu_debugfs.c:37:16: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'long long int' [-Wformat=]
  seq_printf(m, "fence %ld %lld\n",
                ^

In order to avoid the warnings, this changes the format strings to %llu
and adds a cast to u64, which makes it work the same way everywhere.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Arnd Bergmann 2015-10-07 12:41:21 +02:00 committed by Dave Airlie
parent ba2199a63d
commit d549f545e6
2 changed files with 3 additions and 3 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/gpu/drm/virtio/virtgpu_debugfs.c
View file

@ -34,8 +34,8 @@ virtio_gpu_debugfs_irq_info(struct seq_file *m, void *data)
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
seq_printf(m, "fence %ld %lld\n",
atomic64_read(&vgdev->fence_drv.last_seq),
seq_printf(m, "fence %llu %lld\n",
(u64)atomic64_read(&vgdev->fence_drv.last_seq),
vgdev->fence_drv.sync_seq);
return 0;
}

2
drivers/gpu/drm/virtio/virtgpu_fence.c
View file

@ -61,7 +61,7 @@ static void virtio_timeline_value_str(struct fence *f, char *str, int size)
{
struct virtio_gpu_fence *fence = to_virtio_fence(f);
snprintf(str, size, "%lu", atomic64_read(&fence->drv->last_seq));
snprintf(str, size, "%llu", (u64)atomic64_read(&fence->drv->last_seq));
}
static const struct fence_ops virtio_fence_ops = {