From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 56516C3A5A2 for ; Fri, 23 Aug 2019 12:56:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 340B3233A2 for ; Fri, 23 Aug 2019 12:56:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2395061AbfHWM4s (ORCPT ); Fri, 23 Aug 2019 08:56:48 -0400 Received: from metis.ext.pengutronix.de ([85.220.165.71]:46891 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731831AbfHWM4q (ORCPT ); Fri, 23 Aug 2019 08:56:46 -0400 Received: from lupine.hi.pengutronix.de ([2001:67c:670:100:3ad5:47ff:feaf:1a17] helo=lupine) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1i197P-0006TS-5v; Fri, 23 Aug 2019 14:56:39 +0200 Message-ID: <1566564998.3023.13.camel@pengutronix.de> Subject: Re: [PATCH v3 5/7] media: v4l2-core: Add new helper for area controls From: Philipp Zabel To: Ricardo Ribalda Delgado , Mauro Carvalho Chehab , Hans Verkuil , Sakari Ailus , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Jacopo Mondi Date: Fri, 23 Aug 2019 14:56:38 +0200 In-Reply-To: <20190823123737.7774-5-ribalda@kernel.org> References: <20190823123737.7774-1-ribalda@kernel.org> <20190823123737.7774-5-ribalda@kernel.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.22.6-1+deb9u2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 2001:67c:670:100:3ad5:47ff:feaf:1a17 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2019-08-23 at 14:37 +0200, Ricardo Ribalda Delgado wrote: > Adding a V4L2_CID_UNIT_CELL_SIZE control requires a lot of boilerplate, > try to minimize it by adding a new helper. > > Suggested-by: Philipp Zabel > Signed-off-by: Ricardo Ribalda Delgado > --- > drivers/media/v4l2-core/v4l2-ctrls.c | 25 ++++++++++++++++++++++++- > include/media/v4l2-ctrls.h | 16 ++++++++++++++++ > 2 files changed, 40 insertions(+), 1 deletion(-) > > diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c > index b3bf458df7f7..33e48f0aec1a 100644 > --- a/drivers/media/v4l2-core/v4l2-ctrls.c > +++ b/drivers/media/v4l2-core/v4l2-ctrls.c > @@ -2660,7 +2660,6 @@ struct v4l2_ctrl *v4l2_ctrl_new_std_menu_items(struct v4l2_ctrl_handler *hdl, > } > EXPORT_SYMBOL(v4l2_ctrl_new_std_menu_items); > > -/* Helper function for standard integer menu controls */ Why move this ... > struct v4l2_ctrl *v4l2_ctrl_new_int_menu(struct v4l2_ctrl_handler *hdl, > const struct v4l2_ctrl_ops *ops, > u32 id, u8 _max, u8 _def, const s64 *qmenu_int) > @@ -2684,6 +2683,30 @@ struct v4l2_ctrl *v4l2_ctrl_new_int_menu(struct v4l2_ctrl_handler *hdl, > } > EXPORT_SYMBOL(v4l2_ctrl_new_int_menu); > > +static void area_init(const struct v4l2_ctrl *ctrl, u32 idx, > + union v4l2_ctrl_ptr ptr) > +{ > + memcpy(ptr.p_area, ctrl->priv, sizeof(*ptr.p_area)); > +} > + > +static const struct v4l2_ctrl_type_ops area_ops = { > + .init = area_init, > +}; > + > +struct v4l2_ctrl *v4l2_ctrl_new_area(struct v4l2_ctrl_handler *hdl, > + const struct v4l2_ctrl_ops *ops, > + u32 id, const struct v4l2_area *area) > +{ > + static struct v4l2_ctrl_config ctrl = { > + .id = V4L2_CID_UNIT_CELL_SIZE, > + .type_ops = &area_ops, > + }; > + > + return v4l2_ctrl_new_custom(hdl, &ctrl, (void *)area); > +} > +EXPORT_SYMBOL(v4l2_ctrl_new_area); > + > +/* Helper function for standard integer menu controls */ ... here? Looks to me like this comment should stay attached to v4l2_ctrl_new_int_menu. regards Philipp