There is apparently no reasons to open-code of_device_uevent() besides: - The helper receives a struct device while we want to use the of_node member of the struct device *parent*. - of_device_uevent() could not be called by modules because of a missing EXPORT_SYMBOL*(). In practice, the former point is not very constraining, just calling of_device_uevent(dev->parent, ...) would have made the trick. The latter point is more an observation rather than a real blocking point because nothing prevented of_uevent() (called by the inline function of_device_uevent()) to be exported to modules. In practice, this helper is now exported, so nothing prevent us from using of_device_uevent() anymore. Let's use the core helper directly instead of open-coding it. Cc: Thierry Reding <thierry.reding@xxxxxxxxx> Cc: David Airlie <airlied@xxxxxxxxx> Cc: Daniel Vetter <daniel@xxxxxxxx> Cc: Mikko Perttunen <mperttunen@xxxxxxxxxx> Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: Frank Rowand <frowand.list@xxxxxxxxx> Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx> --- This patch depends on the changes performed earlier in the series under the drivers/of/ folder. --- drivers/gpu/host1x/bus.c | 29 ++++++----------------------- 1 file changed, 6 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/host1x/bus.c b/drivers/gpu/host1x/bus.c index 4d16a3396c4a..dae589b83be1 100644 --- a/drivers/gpu/host1x/bus.c +++ b/drivers/gpu/host1x/bus.c @@ -338,32 +338,15 @@ static int host1x_device_match(struct device *dev, struct device_driver *drv) return strcmp(dev_name(dev), drv->name) == 0; } +/* + * Note that this is really only needed for backwards compatibility + * with libdrm, which parses this information from sysfs and will + * fail if it can't find the OF_FULLNAME, specifically. + */ static int host1x_device_uevent(const struct device *dev, struct kobj_uevent_env *env) { - struct device_node *np = dev->parent->of_node; - unsigned int count = 0; - struct property *p; - const char *compat; - - /* - * This duplicates most of of_device_uevent(), but the latter cannot - * be called from modules and operates on dev->of_node, which is not - * available in this case. - * - * Note that this is really only needed for backwards compatibility - * with libdrm, which parses this information from sysfs and will - * fail if it can't find the OF_FULLNAME, specifically. - */ - add_uevent_var(env, "OF_NAME=%pOFn", np); - add_uevent_var(env, "OF_FULLNAME=%pOF", np); - - of_property_for_each_string(np, "compatible", p, compat) { - add_uevent_var(env, "OF_COMPATIBLE_%u=%s", count, compat); - count++; - } - - add_uevent_var(env, "OF_COMPATIBLE_N=%u", count); + of_device_uevent((const struct device *)&dev->parent, env); return 0; } -- 2.34.1