From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from gateway20.websitewelcome.com ([192.185.58.11]:32967 "EHLO gateway20.websitewelcome.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751873AbdGFU4y (ORCPT ); Thu, 6 Jul 2017 16:56:54 -0400 Received: from cm13.websitewelcome.com (cm13.websitewelcome.com [100.42.49.6]) by gateway20.websitewelcome.com (Postfix) with ESMTP id 20429400F2CD8 for ; Thu, 6 Jul 2017 15:35:54 -0500 (CDT) Date: Thu, 6 Jul 2017 15:35:53 -0500 From: "Gustavo A. R. Silva" To: "Lad, Prabhakar" , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, "Gustavo A. R. Silva" Subject: [PATCH] davinci: vpif_display: constify vb2_ops structure Message-ID: <20170706203553.GA15159@embeddedgus> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: linux-media-owner@vger.kernel.org List-ID: Check for vb2_ops structures that are only stored in the ops field of a vb2_queue structure. That field is declared const, so vb2_ops structures that have this property can be declared as const also. This issue was detected using Coccinelle and the following semantic patch: @r disable optional_qualifier@ identifier i; position p; @@ static struct vb2_ops i@p = { ... }; @ok@ identifier r.i; struct vb2_queue e; position p; @@ e.ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct vb2_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct vb2_ops i = { ... }; Signed-off-by: Gustavo A. R. Silva --- drivers/media/platform/davinci/vpif_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/platform/davinci/vpif_display.c b/drivers/media/platform/davinci/vpif_display.c index b5ac6ce..1a494d3 100644 --- a/drivers/media/platform/davinci/vpif_display.c +++ b/drivers/media/platform/davinci/vpif_display.c @@ -290,7 +290,7 @@ static void vpif_stop_streaming(struct vb2_queue *vq) spin_unlock_irqrestore(&common->irqlock, flags); } -static struct vb2_ops video_qops = { +static const struct vb2_ops video_qops = { .queue_setup = vpif_buffer_queue_setup, .wait_prepare = vb2_ops_wait_prepare, .wait_finish = vb2_ops_wait_finish, -- 2.5.0