From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from gateway32.websitewelcome.com ([192.185.145.182]:17971 "EHLO gateway32.websitewelcome.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752771AbdGFUva (ORCPT ); Thu, 6 Jul 2017 16:51:30 -0400 Received: from cm16.websitewelcome.com (cm16.websitewelcome.com [100.42.49.19]) by gateway32.websitewelcome.com (Postfix) with ESMTP id F23F776582D for ; Thu, 6 Jul 2017 15:51:27 -0500 (CDT) Date: Thu, 6 Jul 2017 15:51:27 -0500 From: "Gustavo A. R. Silva" To: Rick Chang , Bin Liu , Mauro Carvalho Chehab , Matthias Brugger Cc: linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, "Gustavo A. R. Silva" Subject: [PATCH] mediatek: constify vb2_ops structure Message-ID: <20170706205127.GA20926@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/mtk-jpeg/mtk_jpeg_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c index 451a540..f17a86b 100644 --- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c +++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c @@ -756,7 +756,7 @@ static void mtk_jpeg_stop_streaming(struct vb2_queue *q) pm_runtime_put_sync(ctx->jpeg->dev); } -static struct vb2_ops mtk_jpeg_qops = { +static const struct vb2_ops mtk_jpeg_qops = { .queue_setup = mtk_jpeg_queue_setup, .buf_prepare = mtk_jpeg_buf_prepare, .buf_queue = mtk_jpeg_buf_queue, -- 2.5.0