From patchwork Tue Apr 2 16:42:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 10882113 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E5A50184E for ; Tue, 2 Apr 2019 16:44:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D146926E73 for ; Tue, 2 Apr 2019 16:44:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C54DD27D29; Tue, 2 Apr 2019 16:44:51 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7FDC626E73 for ; Tue, 2 Apr 2019 16:44:51 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hBMV4-0005zb-Mx; Tue, 02 Apr 2019 16:43:02 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hBMV2-0005yz-Sa for xen-devel@lists.xenproject.org; Tue, 02 Apr 2019 16:43:00 +0000 X-Inumbo-ID: 605738a0-5566-11e9-9a61-6fe3d858de2e Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTP id 605738a0-5566-11e9-9a61-6fe3d858de2e; Tue, 02 Apr 2019 16:43:00 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 148BA15AD; Tue, 2 Apr 2019 09:43:00 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.196.50]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 467C33F721; Tue, 2 Apr 2019 09:42:58 -0700 (PDT) From: Julien Grall To: xen-devel@lists.xenproject.org Date: Tue, 2 Apr 2019 17:42:38 +0100 Message-Id: <20190402164238.1815-5-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190402164238.1815-1-julien.grall@arm.com> References: <20190402164238.1815-1-julien.grall@arm.com> Subject: [Xen-devel] [PATCH 4/4] xen/console: Simplify domU console handling in guest_console_write X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Stefano Stabellini , Wei Liu , Konrad Rzeszutek Wilk , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Julien Grall , Jan Beulich MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP 2 paths in the domU console handling are now the same. So they can be merged to make the code simpler. Signed-off-by: Julien Grall Acked-by: Wei Liu Reviewed-by: Stefano Stabellini --- xen/drivers/char/console.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/xen/drivers/char/console.c b/xen/drivers/char/console.c index b119bf980b..5483d66512 100644 --- a/xen/drivers/char/console.c +++ b/xen/drivers/char/console.c @@ -584,13 +584,8 @@ static long guest_console_write(XEN_GUEST_HANDLE_PARAM(char) buffer, int count) *kout = '\0'; spin_lock(&cd->pbuf_lock); kcount = kin - kbuf; - if ( c == '\n' ) - { - cd->pbuf[cd->pbuf_idx] = '\0'; - guest_printk(cd, XENLOG_G_DEBUG "%s%s\n", cd->pbuf, kbuf); - cd->pbuf_idx = 0; - } - else if ( cd->pbuf_idx + (kout - kbuf) < (DOMAIN_PBUF_SIZE - 1) ) + if ( c != '\n' && + (cd->pbuf_idx + (kout - kbuf) < (DOMAIN_PBUF_SIZE - 1)) ) { /* buffer the output until a newline */ memcpy(cd->pbuf + cd->pbuf_idx, kbuf, kout - kbuf);