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| author | Peter Rosin <peda@axentia.se> | 2017-07-13 18:25:25 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-07-14 15:53:06 +0200 |
| commit | 5f057ffd6da26c939dff976a2acc76233bbe4467 (patch) | |
| tree | 34c3a556a7719a4518f050558cc3f5908d4da1b1 /drivers/gpu/drm/drm_property.c | |
| parent | drm/dp/mst: Use memchr_inv() instead of memcmp() against a zeroed array (diff) | |
| download | linux-5f057ffd6da26c939dff976a2acc76233bbe4467.tar.xz linux-5f057ffd6da26c939dff976a2acc76233bbe4467.zip | |
drm: rename, adjust and export drm_atomic_replace_property_blob
The function has little to do with atomic, it's just where it has so
far been needed. So, rename it to drm_property_replace_blob, move it
to drm_property.c and export it.
Change the semantics to return whether the blob was replaced instead
of using an extra argument for that.
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170713162538.22788-2-peda@axentia.se
Diffstat (limited to 'drivers/gpu/drm/drm_property.c')
| -rw-r--r-- | drivers/gpu/drm/drm_property.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c index 3e88fa24eab3..bc5128203056 100644 --- a/drivers/gpu/drm/drm_property.c +++ b/drivers/gpu/drm/drm_property.c @@ -709,6 +709,29 @@ err_created: } EXPORT_SYMBOL(drm_property_replace_global_blob); +/** + * drm_property_replace_blob - replace a blob property + * @blob: a pointer to the member blob to be replaced + * @new_blob: the new blob to replace with + * + * Return: true if the blob was in fact replaced. + */ +bool drm_property_replace_blob(struct drm_property_blob **blob, + struct drm_property_blob *new_blob) +{ + struct drm_property_blob *old_blob = *blob; + + if (old_blob == new_blob) + return false; + + drm_property_blob_put(old_blob); + if (new_blob) + drm_property_blob_get(new_blob); + *blob = new_blob; + return true; +} +EXPORT_SYMBOL(drm_property_replace_blob); + int drm_mode_getblob_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { |