Message ID | 20230328131233.2534-3-jgross@suse.com |
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State | New |
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[2620:137:e000::1:20]) by mx.google.com with ESMTP id e1-20020a50fb81000000b005021f0d575esi12957889edq.677.2023.03.28.06.24.33; Tue, 28 Mar 2023 06:24:57 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@suse.com header.s=susede1 header.b="O/kjrp9u"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=suse.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233060AbjC1NNR (ORCPT <rfc822;kartikey406@gmail.com> + 99 others); Tue, 28 Mar 2023 09:13:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232952AbjC1NNF (ORCPT <rfc822;linux-kernel@vger.kernel.org>); Tue, 28 Mar 2023 09:13:05 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D1268A62; Tue, 28 Mar 2023 06:13:04 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id E146221A25; Tue, 28 Mar 2023 13:13:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1680009182; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YW7EQFAaSbV1XiZ+rWOC33Mh7NdDO+nn7h2JPqjxGsU=; b=O/kjrp9uwhaX0UHcxnMEsib0oNTmVBstScUxSKkHjVOFyAM6ud1RCyuekMkZ36jQpPD1ZR DM6toj/Ixa4HrtnnqRELqKdV5fzFX7Xh5gXJKbQgznCMyUK/eCvzYBpBmemN5d0MS02eho LyrmFwNOmbYVjCPAQEH2c0kPLjUJMZE= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 98ADC1390D; Tue, 28 Mar 2023 13:13:02 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id bIYXJN7nImRBTgAAMHmgww (envelope-from <jgross@suse.com>); Tue, 28 Mar 2023 13:13:02 +0000 From: Juergen Gross <jgross@suse.com> To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Cc: Juergen Gross <jgross@suse.com>, Wei Liu <wei.liu@kernel.org>, Paul Durrant <paul@xen.org>, "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, xen-devel@lists.xenproject.org, Jan Beulich <jbeulich@suse.com> Subject: [PATCH v2 2/3] xen/netback: remove not needed test in xenvif_tx_build_gops() Date: Tue, 28 Mar 2023 15:12:32 +0200 Message-Id: <20230328131233.2534-3-jgross@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230328131047.2440-1-jgross@suse.com> References: <20230328131047.2440-1-jgross@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.5 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1761618057902577942?= X-GMAIL-MSGID: =?utf-8?q?1761618057902577942?= |
Series |
xen/netback: fix issue introduced recently
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Commit Message
Juergen Gross
March 28, 2023, 1:12 p.m. UTC
The tests for the number of grant mapping or copy operations reaching the array size of the operations buffer at the end of the main loop in xenvif_tx_build_gops() isn't needed. The loop can handle at maximum MAX_PENDING_REQS transfer requests, as XEN_RING_NR_UNCONSUMED_REQUESTS() is taking unsent responses into consideration, too. Remove the tests. Suggested-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Paul Durrant <paul@xen.org> --- drivers/net/xen-netback/netback.c | 4 ---- 1 file changed, 4 deletions(-)
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index 54c76af90233..9ca4b69d3b39 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -1084,10 +1084,6 @@ static void xenvif_tx_build_gops(struct xenvif_queue *queue, __skb_queue_tail(&queue->tx_queue, skb); queue->tx.req_cons = idx; - - if ((*map_ops >= ARRAY_SIZE(queue->tx_map_ops)) || - (*copy_ops >= ARRAY_SIZE(queue->tx_copy_ops))) - break; } return;