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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1774871346; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=DAJj8ZslZgsOIkvnpDadAqH4+KJQwmg5EMAcBGW7ihY=; b=dew0pccTg2ERuzRlfCh2KLYtLspExlbRmb9trAepk4QFrrUkLnalEKVEt1Is9et33yASXi woXOzWDefgE3dq45y0Y9XEoc9U3ZJ5glIAbwvcdYFcutc9ZcBgOYxrW3fhfjaEa5NmOo+K rJtvlVJMLvcj4tHRAxUKN2VxHXp9kc8= X-MC-Unique: K7dyrpZNN9WcygoxjbJ20Q-1 X-Mimecast-MFC-AGG-ID: K7dyrpZNN9WcygoxjbJ20Q_1774871341 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: linhuang , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 2/2] net/ftgmac100: preserve full VLAN TCI in TX tag insertion Date: Mon, 30 Mar 2026 13:48:53 +0200 Message-ID: <20260330114853.638753-3-clg@redhat.com> In-Reply-To: <20260330114853.638753-1-clg@redhat.com> References: <20260330114853.638753-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 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=170.10.133.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 27 X-Spam_score: 2.7 X-Spam_bar: ++ X-Spam_report: (2.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.54, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.01, RCVD_IN_SBL_CSS=3.335, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=1, RCVD_IN_VALIDITY_RPBL_BLOCKED=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1774871413167154100 From: linhuang The VLAN tag insertion helper took vlan_tci as an 8-bit value, while the=C2=A0descriptor provides a 16-bit VLAN TCI. This truncated egress tags and caused VLAN ID corruption (for example, 4088/0x0ff8 became 248/0x00f8 at the receiver). Change vlan_tci to uint16_t=C2=A0in the TX VLAN insertion path so the full 802.1Q TCI is preserved and transmitted correctly. Fixes: c2ab73fcbe79 ("ftgmac100: Fix integer overflow in ftgmac100_do_tx()") Signed-off-by: linhuang Link: https://lore.kernel.org/qemu-devel/1471e413d3589b6734819bda2b59b725b7= 4f273a.d551129b.99fc.47f6.86dc.0759227268a2@feishu.cn Reviewed-by: C=C3=A9dric Le Goater Signed-off-by: C=C3=A9dric Le Goater --- hw/net/ftgmac100.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/net/ftgmac100.c b/hw/net/ftgmac100.c index 2f05bba11d01..b3da48c343c7 100644 --- a/hw/net/ftgmac100.c +++ b/hw/net/ftgmac100.c @@ -498,7 +498,7 @@ static int ftgmac100_write_bd(FTGMAC100Desc *bd, dma_ad= dr_t addr) } =20 static int ftgmac100_insert_vlan(FTGMAC100State *s, int frame_size, - uint8_t vlan_tci) + uint16_t vlan_tci) { uint8_t *vlan_hdr =3D s->frame + (ETH_ALEN * 2); uint8_t *payload =3D vlan_hdr + sizeof(struct vlan_header); --=20 2.53.0