From patchwork Thu May 13 12:56:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Takashi Sakamoto X-Patchwork-Id: 439421 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT 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 B57DFC433B4 for ; Thu, 13 May 2021 12:57:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 842F561264 for ; Thu, 13 May 2021 12:57:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230447AbhEMM6P (ORCPT ); Thu, 13 May 2021 08:58:15 -0400 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:44979 "EHLO out4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230488AbhEMM6O (ORCPT ); Thu, 13 May 2021 08:58:14 -0400 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 3A9405C015B; Thu, 13 May 2021 08:57:04 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Thu, 13 May 2021 08:57:04 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sakamocchi.jp; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm1; bh=SiO+pcMbXuqv/ hZDxQNoTDJaePDS0BK45FBgOaKHkO8=; b=ZfgjOlnIFq2XKoKgC/RLXTEH2HlP+ ElYAi0sA46POLCRCzyr7Yv34m13+kc3llxeCq8nvaI7gMFBTAz03EA9sz1vkOjSr x+EpR5UDN0i+y91ZcXV39ox30YfgH2JQ63rY63Gl96fsPPpsd05drmtM9OIgPwBp ZG7fPt9DxkQU+oSuGdPAvqW47RuYV6cf5a+nTa6TodehYVnNggNcud25rantFefr CwYfEg/Q1PPmDBfv4oEmXq+2EHaM+PcXbo0A0m+vv5bJY4XTs7isXk4Ehx7SybMY a7AyfcHwJiTMp4qXudcJL3cqI/+3X4D6VzrEBAq4JSbkkTmcL4AuJ10tQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm2; bh=SiO+pcMbXuqv/hZDxQNoTDJaePDS0BK45FBgOaKHkO8=; b=IvO94Jyt aOibRRVNPpiMC6ddlbAuJ8LPhg0TvZBrx+fd7+37NIeSTEgukTvNvikWtlBo6jy2 xTmbyBXS7KYbLhUVmMVEbPwmotsYWkRqk0IOT1IFggnNDIt+RJCUYWAsuJoGuK2N myfHQeYPSA2Q3/g4ToUxjwrwZd76WlwKdZcjBbePioj0m3vokcdWf/iREAJIycrr brG98PI8dH/JduMLGZy+QjCzcAwaPfGsapQEavQuq02eaNb9aJdaq0F+pI9pnQ+R QeU/AT8C5dNaOqf4UNUtwvls9w13k/EcVmZKBPt+tcMg/2vxcUs0wpD88MdLENFc KllaFok+GuO4qA== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrvdehgedgheelucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvffufffkofgjfhgggfestdekre dtredttdenucfhrhhomhepvfgrkhgrshhhihcuufgrkhgrmhhothhouceoohdqthgrkhgr shhhihesshgrkhgrmhhotggthhhirdhjpheqnecuggftrfgrthhtvghrnhepveefffefke etgfevgeefleehfffhueejtdejveethfekveektdejjedvtdejhfejnecukfhppedugedr fedrieehrddujeehnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilh hfrhhomhepohdqthgrkhgrshhhihesshgrkhgrmhhotggthhhirdhjph X-ME-Proxy: Received: from workstation.flets-east.jp (ae065175.dynamic.ppp.asahi-net.or.jp [14.3.65.175]) by mail.messagingengine.com (Postfix) with ESMTPA; Thu, 13 May 2021 08:57:02 -0400 (EDT) From: Takashi Sakamoto To: tiwai@suse.de Cc: clemens@ladisch.de, alsa-devel@alsa-project.org, stable@vger.kernel.org Subject: [PATCH 4/5] ALSA: firewire-lib: fix calculation for size of IR context payload Date: Thu, 13 May 2021 21:56:51 +0900 Message-Id: <20210513125652.110249-5-o-takashi@sakamocchi.jp> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210513125652.110249-1-o-takashi@sakamocchi.jp> References: <20210513125652.110249-1-o-takashi@sakamocchi.jp> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org The quadlets for CIP header is handled as a part of IR context header, thus it doesn't join in IR context payload. However current calculation includes the quadlets in IR context payload. Cc: Fixes: f11453c7cc01 ("ALSA: firewire-lib: use 16 bytes IR context header to separate CIP header") Signed-off-by: Takashi Sakamoto --- sound/firewire/amdtp-stream.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c index b53971bf4b90..73aff017dc9a 100644 --- a/sound/firewire/amdtp-stream.c +++ b/sound/firewire/amdtp-stream.c @@ -1071,23 +1071,22 @@ static int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed, s->data_block_counter = 0; } - /* initialize packet buffer */ + // initialize packet buffer. + max_ctx_payload_size = amdtp_stream_get_max_payload(s); if (s->direction == AMDTP_IN_STREAM) { dir = DMA_FROM_DEVICE; type = FW_ISO_CONTEXT_RECEIVE; - if (!(s->flags & CIP_NO_HEADER)) + if (!(s->flags & CIP_NO_HEADER)) { + max_ctx_payload_size -= 8; ctx_header_size = IR_CTX_HEADER_SIZE_CIP; - else + } else { ctx_header_size = IR_CTX_HEADER_SIZE_NO_CIP; - - max_ctx_payload_size = amdtp_stream_get_max_payload(s) - - ctx_header_size; + } } else { dir = DMA_TO_DEVICE; type = FW_ISO_CONTEXT_TRANSMIT; ctx_header_size = 0; // No effect for IT context. - max_ctx_payload_size = amdtp_stream_get_max_payload(s); if (!(s->flags & CIP_NO_HEADER)) max_ctx_payload_size -= IT_PKT_HEADER_SIZE_CIP; }