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,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 B0B99C3F2D7 for ; Thu, 5 Mar 2020 17:21:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7A430207FD for ; Thu, 5 Mar 2020 17:21:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583428911; bh=lPR4tM2lxTRYCqhAC1uOU15vHUXtv4mO9yS8yOPjzbI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=CuC4Du4ZBaIHbdEimXOIF62sefbyB13eVNELTsXIsb7hM+vMtR2O+fRc63suvlVZ4 lHCmXs0N1mQp5+lzm8uGZPb8S2LWfTk833YUikSpvzEP2CjIn0+efZ2lawrVlXxuO5 K0HTf9NUsvN5b5GtW8WgWMpUt4BHThbEZyzNzwDs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727877AbgCERVq (ORCPT ); Thu, 5 Mar 2020 12:21:46 -0500 Received: from mail.kernel.org ([198.145.29.99]:40566 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726222AbgCERO0 (ORCPT ); Thu, 5 Mar 2020 12:14:26 -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 B6C94217F4; Thu, 5 Mar 2020 17:14:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583428465; bh=lPR4tM2lxTRYCqhAC1uOU15vHUXtv4mO9yS8yOPjzbI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zx6y8Ktu2dTkR9Ux40Ax9AefSBr4/rfMuzfB6RzoWOU842IVGQ8Du0N8qPqhPOUzj PtBF/QfRkyekWGhk972qfVWXWRmcBPvwKrvUcKHTkx4MQzzVwZKMDKn5xGT/+khZ3A xASg5ahrHX+ydUui8DHVNSbKTQF99mLatVTj0UZo= 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 5.4 04/58] HID: core: increase HID report buffer size to 8KiB Date: Thu, 5 Mar 2020 12:13:25 -0500 Message-Id: <20200305171420.29595-4-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200305171420.29595-1-sashal@kernel.org> References: <20200305171420.29595-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 cd41f209043f6..875f71132b142 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -492,7 +492,7 @@ 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