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| author |   Alexander Kapshuk <alexander.kapshuk@gmail.com> | 2017-12-25 16:42:59 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-08 16:03:45 +0100 |
| commit | 21c0885fd1f67845c59ee37989925e99fcc9018f (patch) | |
| tree | a18349981043fd6409d0912e68c76ac8fe962b7d /drivers/staging/vboxvideo | |
| parent | drivers/fbtft: Remove unnecessary braces from if/else (diff) | |
| download | linux-dev-21c0885fd1f67845c59ee37989925e99fcc9018f.tar.xz linux-dev-21c0885fd1f67845c59ee37989925e99fcc9018f.zip | |
vboxvideo: Fix incorrect type in assignment sparse warning
Sparse emitted the following warning:
../drivers/staging/vboxvideo/vbox_fb.c:173:27: warning: incorrect type in assignment (different address spaces)
../drivers/staging/vboxvideo/vbox_fb.c:173:27: expected char [noderef] <asn:2>*screen_base
../drivers/staging/vboxvideo/vbox_fb.c:173:27: got void *virtual
The vbox_bo buffer object kernel mapping is handled by a call
to ttm_bo_kmap() prior to the assignment of bo->kmap.virtual to
info->screen_base of type char __iomem*.
Casting bo->kmap.virtual to char __iomem* in this assignment fixes
the warning.
vboxvideo: Fix address space of expression removal sparse warning
Sparse emitted the following warning:
../drivers/staging/vboxvideo/vbox_main.c:64:25: warning: cast removes address space of expression
vbox->vbva_buffers iomapping is handled by calling vbox_accel_init()
from vbox_hw_init().
__force attribute is used in assignment to vbva to fix the warning.
Signed-off-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/vboxvideo')
| -rw-r--r-- | drivers/staging/vboxvideo/vbox_fb.c | 2 | ||||
| -rw-r--r-- | drivers/staging/vboxvideo/vbox_main.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/vboxvideo/vbox_fb.c b/drivers/staging/vboxvideo/vbox_fb.c index 8aed248db6e2..43c39eca4ae1 100644 --- a/drivers/staging/vboxvideo/vbox_fb.c +++ b/drivers/staging/vboxvideo/vbox_fb.c @@ -170,7 +170,7 @@ static int vboxfb_create(struct drm_fb_helper *helper, drm_fb_helper_fill_var(info, &fbdev->helper, sizes->fb_width, sizes->fb_height); - info->screen_base = bo->kmap.virtual; + info->screen_base = (char __iomem *)bo->kmap.virtual; info->screen_size = size; #ifdef CONFIG_DRM_KMS_FB_HELPER diff --git a/drivers/staging/vboxvideo/vbox_main.c b/drivers/staging/vboxvideo/vbox_main.c index 80bd039fa08e..973b3bcc04b1 100644 --- a/drivers/staging/vboxvideo/vbox_main.c +++ b/drivers/staging/vboxvideo/vbox_main.c @@ -61,7 +61,7 @@ void vbox_enable_accel(struct vbox_private *vbox) if (vbox->vbva_info[i].vbva) continue; - vbva = (void *)vbox->vbva_buffers + i * VBVA_MIN_BUFFER_SIZE; + vbva = (void __force *)vbox->vbva_buffers + i * VBVA_MIN_BUFFER_SIZE; if (!vbva_enable(&vbox->vbva_info[i], vbox->guest_pool, vbva, i)) { /* very old host or driver error. */ |