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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 B3FE4C3F2D7 for ; Thu, 5 Mar 2020 17:17:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8139A20870 for ; Thu, 5 Mar 2020 17:17:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583428671; bh=avgxrIBeeT6c1QP2JTPKdYbvMYOWNOCRRBbf8p0twck=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Vr+FmuBTRG7vvymJCBouxs+e4xHsmVD6A7iUF2MID7Yj1f3uWIMDS3MVn/phusUna kFy7/CokD9NByZWmmJ/UO46OeaA8x5LjJ3BwrbLSi7qS2RZVb8tT90KOSviTXwGc+B A2LZUKO2F1KkSQ5ar7pRl6acFZQYsgTBnuG3arxI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728224AbgCERPr (ORCPT ); Thu, 5 Mar 2020 12:15:47 -0500 Received: from mail.kernel.org ([198.145.29.99]:42608 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728234AbgCERPr (ORCPT ); Thu, 5 Mar 2020 12:15:47 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7AAAE2146E; Thu, 5 Mar 2020 17:15:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583428546; bh=avgxrIBeeT6c1QP2JTPKdYbvMYOWNOCRRBbf8p0twck=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NXwaxkRD8y6O/vfMb25Q6Th6clWmImY784vYtTcsmVHn7nc2f9Znon+zg07bmeEvM stS+HqChEndByKR94djVI42q2OnvRt8/g6wTN815ZoFowAiCfwdLiC05R9neDMmcRI /RluVP/MDhlUddb2dY4jTEH5/CgcQTRAMC793Djc= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Johan Korsnes , Alan Stern , Armando Visconti , Jiri Kosina , Sasha Levin , linux-input@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 04/19] HID: core: increase HID report buffer size to 8KiB Date: Thu, 5 Mar 2020 12:15:25 -0500 Message-Id: <20200305171540.30250-4-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200305171540.30250-1-sashal@kernel.org> References: <20200305171540.30250-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org From: Johan Korsnes [ Upstream commit 84a4062632462c4320704fcdf8e99e89e94c0aba ] We have a HID touch device that reports its opens and shorts test results in HID buffers of size 8184 bytes. The maximum size of the HID buffer is currently set to 4096 bytes, causing probe of this device to fail. With this patch we increase the maximum size of the HID buffer to 8192 bytes, making device probe and acquisition of said buffers succeed. Signed-off-by: Johan Korsnes Cc: Alan Stern Cc: Armando Visconti Cc: Jiri Kosina Signed-off-by: Jiri Kosina Signed-off-by: Sasha Levin --- include/linux/hid.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/hid.h b/include/linux/hid.h index 3656a04d764ba..ba1f675598314 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -477,7 +477,7 @@ struct hid_report_enum { }; #define HID_MIN_BUFFER_SIZE 64 /* make sure there is at least a packet size of space */ -#define HID_MAX_BUFFER_SIZE 4096 /* 4kb */ +#define HID_MAX_BUFFER_SIZE 8192 /* 8kb */ #define HID_CONTROL_FIFO_SIZE 256 /* to init devices with >100 reports */ #define HID_OUTPUT_FIFO_SIZE 64 -- 2.20.1