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=-12.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 autolearn=ham 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 94C33C4346E for ; Tue, 29 Sep 2020 05:19:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4A2FA21548 for ; Tue, 29 Sep 2020 05:19:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601356773; bh=Jkqd0x9y1qCqf4dEAyGH6DAakth8ael+GUF3gD5Y6yM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:List-ID:From; b=FbMkeV7B71AiAOWAXVS+PqvaDibhA4sMOfvhcOlZ8vnAZxmevqM2Jq3uqo4dKyRu8 2iBfTSqNzlmW7Lv9f2Awva9DB4qxbq+H46JsJm4wkhXXw0s8BFWb/iU/DXmUZEWlON dpU9Si1NhSXRmWXjv6n+nrUr/mfeWl/rkUjZYcvY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727420AbgI2FTc (ORCPT ); Tue, 29 Sep 2020 01:19:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:34096 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725536AbgI2FTb (ORCPT ); Tue, 29 Sep 2020 01:19:31 -0400 Received: from coco.lan (ip5f5ad5bc.dynamic.kabel-deutschland.de [95.90.213.188]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C60B42145D; Tue, 29 Sep 2020 05:19:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601356771; bh=Jkqd0x9y1qCqf4dEAyGH6DAakth8ael+GUF3gD5Y6yM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=xe4Ftg6fNu8TtjnFW5XlS6N3U6x+Jefb2Frpk6OW9otweRVse7t9N555j6aDwjkTg ujzDx5GQTBjp8cUKyKhkOqHW1BYYAcG/rGo6OGsri7zLxKaw5NMtAVYbL/emfw95Va hXuhDVnhwYNtljsas4TtLqV4lV2BHQ5PVkGnZ65s= Date: Tue, 29 Sep 2020 07:19:18 +0200 From: Mauro Carvalho Chehab To: "Daniel W. S. Almeida" Cc: r.verdejo@samsung.com, nicolas@ndufresne.ca, linux-media@vger.kernel.org, skhan@linuxfoundation.org, linux-kernel-mentees@lists.linuxfoundation.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH WIP 1/6] media: vidtv: extract the initial CRC value to into a #define Message-ID: <20200929071918.15c018ac@coco.lan> In-Reply-To: <20200929032625.1548909-1-dwlsalmeida@gmail.com> References: <20200929032625.1548909-1-dwlsalmeida@gmail.com> X-Mailer: Claws Mail 3.17.6 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Tue, 29 Sep 2020 00:26:20 -0300 "Daniel W. S. Almeida" escreveu: > From: Daniel W. S. Almeida On a very quick look, patches seem good. Why did you mark them as WIP? Next time, please add a patch 0, specially when you tag something as WIP, or RFC. > > The same constant (0xffffffff) is used in three different functions. This one at least seems to be ready for merging ;-) Regards, Mauro > > Extract it into a #define to avoid repetition. > > Signed-off-by: Daniel W. S. Almeida > --- > drivers/media/test-drivers/vidtv/vidtv_psi.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/drivers/media/test-drivers/vidtv/vidtv_psi.c b/drivers/media/test-drivers/vidtv/vidtv_psi.c > index 3151b300a91b..a24e84adc8ce 100644 > --- a/drivers/media/test-drivers/vidtv/vidtv_psi.c > +++ b/drivers/media/test-drivers/vidtv/vidtv_psi.c > @@ -30,6 +30,7 @@ > > #define CRC_SIZE_IN_BYTES 4 > #define MAX_VERSION_NUM 32 > +#define INITIAL_CRC 0xffffffff > > static const u32 CRC_LUT[256] = { > /* from libdvbv5 */ > @@ -794,7 +795,7 @@ u32 vidtv_psi_pat_write_into(struct vidtv_psi_pat_write_args args) > /* the number of bytes written by this function */ > u32 nbytes = 0; > const u16 pat_pid = VIDTV_PAT_PID; > - u32 crc = 0xffffffff; > + u32 crc = INITIAL_CRC; > > struct vidtv_psi_table_pat_program *p = args.pat->program; > > @@ -990,7 +991,7 @@ u32 vidtv_psi_pmt_write_into(struct vidtv_psi_pmt_write_args args) > { > /* the number of bytes written by this function */ > u32 nbytes = 0; > - u32 crc = 0xffffffff; > + u32 crc = INITIAL_CRC; > > struct vidtv_psi_desc *table_descriptor = args.pmt->descriptor; > struct vidtv_psi_table_pmt_stream *stream = args.pmt->stream; > @@ -1143,7 +1144,7 @@ u32 vidtv_psi_sdt_write_into(struct vidtv_psi_sdt_write_args args) > u32 nbytes = 0; > u16 sdt_pid = VIDTV_SDT_PID; /* see ETSI EN 300 468 v1.15.1 p. 11 */ > > - u32 crc = 0xffffffff; > + u32 crc = INITIAL_CRC; > > struct vidtv_psi_table_sdt_service *service = args.sdt->service; > struct vidtv_psi_desc *service_desc = (args.sdt->service) ? Thanks, Mauro