From 51f8da5916f85c18b696f74f97970e5a7330147e Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 27 Sep 2013 15:08:27 +0300 Subject: drm/edid: add drm_edid_duplicate We have some code duplication related to EDID duplication. Add a helper. Signed-off-by: Jani Nikula Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_edid.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/gpu/drm/drm_edid.c') diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 1688ff500513..3140a30aa818 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -1264,6 +1264,18 @@ struct edid *drm_get_edid(struct drm_connector *connector, } EXPORT_SYMBOL(drm_get_edid); +/** + * drm_edid_duplicate - duplicate an EDID and the extensions + * @edid: EDID to duplicate + * + * Return duplicate edid or NULL on allocation failure. + */ +struct edid *drm_edid_duplicate(const struct edid *edid) +{ + return kmemdup(edid, (edid->extensions + 1) * EDID_LENGTH, GFP_KERNEL); +} +EXPORT_SYMBOL(drm_edid_duplicate); + /*** EDID parsing ***/ /** -- cgit v1.2.2