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[44.242.66.180]) by smtp.gmail.com with ESMTPSA id a26sm5667554edm.15.2021.02.26.02.03.18 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 26 Feb 2021 02:03:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=cvh9q9jShUm90b680zacQW5v3lxe1KF1xWzOx2ZWZx4=; b=fHWYqIRMPrA6xp1pdI87qpGk/L+MizuHWtiX12sQYU66zLgQW+ziUga8Mub3M3OLCx TH81MZxu61Kylx7S4VpGZ7w+dU8Qle8HmGtjEyx8WocGsaHDlNw8ArK3iWmJ6MpzjcPg 7gVKW4fQ/Mo3uUAaiSJ1h2b7EjmyA76bUTUzMREah3G6iR92NPvZ2Uzx7pQDzPC0PNaU Np554iTK20PWlZ6Moi4c4/k7qVKSMvD7JiNY4+Lkc5rVQpUlRV9kH6M0i2gM2yDZFm+z 0KqSstFbWtyuvqZA49C7XeaYKcAJYu1qvjkhX/ShpYR8eH7bppPnQwQ+skMwrFHyscfS 9+Xg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=cvh9q9jShUm90b680zacQW5v3lxe1KF1xWzOx2ZWZx4=; b=O5e2Fk2kMZ4cLvywzhfj1x475dDAUNioouSmDRkDbYgHaqwB/0D5dq26yK0kP5qhea 2hP4xLzDw+Ju2fmwDSl3e0KgbAAtDUWGVnYuaEp7XLu5F03hTjlMY+R7WsZQJk6bGAji Z4/BEp2h+cOTJ5jz6mjUIW+38FQ5r+zhVYdvOPxqP4t8stt1kH4IwPStnkst0CvtGvhP eiwgPDDjlO6V5yFDNzHRU1hrKsAF0nIyvYDY0F9HzTaV8ZZBXvmntjbSqK7tkQTGmlU/ +IddY+lP0MybcsF9XmmFXrekVXDEYaesyS80yLPr3lwZLSWIETdJwJnhiSIDilY2ct1U 7t3Q== X-Gm-Message-State: AOAM532W/EWF3KEVL4GspFDTbasnygb2wztdJjo4k/6QD+C2f3VIBOLX D1EbExZRvKfx8ZR8lJ2rjy4= X-Google-Smtp-Source: ABdhPJxys/iyEq5OBkHD2aihByM1xsJhp5t97FpxqC3cfb4eHozZaSybVHlWaJNzWgsiFW0BYj8EdA== X-Received: by 2002:a17:906:dbd0:: with SMTP id yc16mr186858ejb.71.1614333801288; Fri, 26 Feb 2021 02:03:21 -0800 (PST) From: Bin Meng To: Jason Wang , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Peter Maydell , qemu-devel@nongnu.org Subject: [RFC PATCH 2/3] Revert "e1000: Pad short frames to minimum size (60 bytes)" Date: Fri, 26 Feb 2021 18:03:05 +0800 Message-Id: <1614333786-74258-3-git-send-email-bmeng.cn@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1614333786-74258-1-git-send-email-bmeng.cn@gmail.com> References: <1614333786-74258-1-git-send-email-bmeng.cn@gmail.com> Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::632; envelope-from=bmeng.cn@gmail.com; helo=mail-ej1-x632.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bin Meng Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @gmail.com) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Bin Meng This reverts commit 78aeb23eded2d0b765bf9145c71f80025b568acd. The short frames padding is now handled in the QEMU networking codes. Revert this workaround in e1000. Signed-off-by: Bin Meng --- hw/net/e1000.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/hw/net/e1000.c b/hw/net/e1000.c index d8da2f6..8edc2e7 100644 --- a/hw/net/e1000.c +++ b/hw/net/e1000.c @@ -898,15 +898,7 @@ e1000_receive_iov(NetClientState *nc, const struct iov= ec *iov, int iovcnt) return 0; } =20 - /* Pad to minimum Ethernet frame length */ - if (size < sizeof(min_buf)) { - iov_to_buf(iov, iovcnt, 0, min_buf, size); - memset(&min_buf[size], 0, sizeof(min_buf) - size); - min_iov.iov_base =3D filter_buf =3D min_buf; - min_iov.iov_len =3D size =3D sizeof(min_buf); - iovcnt =3D 1; - iov =3D &min_iov; - } else if (iov->iov_len < MAXIMUM_ETHERNET_HDR_LEN) { + if (iov->iov_len < MAXIMUM_ETHERNET_HDR_LEN) { /* This is very unlikely, but may happen. */ iov_to_buf(iov, iovcnt, 0, min_buf, MAXIMUM_ETHERNET_HDR_LEN); filter_buf =3D min_buf; --=20 2.7.4