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b=HXiUIqlV4C+i3EV7YlZY6vUKi3/2VjZafIgBl0QEfI+Fzmy+busgMkA1sVFVM1IVZCsq8y dtuB54dGhoqvOzYjPQZg+RfyCLQsDbXSX4Yv1IL4jcrr10Vp1hln2w8YKNH1gjQ33ynOyA gpfuUZZxUIanv8SLCimPPzeyNFSIV7Y= X-MC-Unique: mZTUBrC0Pre0QlhpVdCsAQ-1 From: P J P To: Jason Wang Subject: [PATCH v3] net: remove an assert call in eth_get_gso_type Date: Wed, 21 Oct 2020 11:35:50 +0530 Message-Id: <20201021060550.1652896-1-ppandit@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=ppandit@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable 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=63.128.21.124; envelope-from=ppandit@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/20 22:12:28 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] 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, DKIMWL_WL_HIGH=-0.001, 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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: Peter Maydell , Gaoning Pan , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , QEMU Developers , Prasad J Pandit Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Prasad J Pandit eth_get_gso_type() routine returns segmentation offload type based on L3 protocol type. It calls g_assert_not_reached if L3 protocol is unknown, making the following return statement unreachable. Remove the g_assert call, it maybe triggered by a guest user. Reported-by: Gaoning Pan Signed-off-by: Prasad J Pandit --- net/eth.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) Update v3: use LOG_GUEST_ERROR mask and %0x04PRIx16 conversion. -> https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg05759.html -> https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg05752.html diff --git a/net/eth.c b/net/eth.c index 0c1d413ee2..eee77071f9 100644 --- a/net/eth.c +++ b/net/eth.c @@ -16,6 +16,7 @@ */ #include "qemu/osdep.h" +#include "qemu/log.h" #include "net/eth.h" #include "net/checksum.h" #include "net/tap.h" @@ -71,9 +72,8 @@ eth_get_gso_type(uint16_t l3_proto, uint8_t *l3_hdr, uint= 8_t l4proto) return VIRTIO_NET_HDR_GSO_TCPV6 | ecn_state; } } - - /* Unsupported offload */ - g_assert_not_reached(); + qemu_log_mask(LOG_GUEST_ERROR, "%s: probably not GSO frame, " + "unknown L3 protocol: 0x%04"PRIx16"\n", __func__, l3_proto); return VIRTIO_NET_HDR_GSO_NONE | ecn_state; } -- 2.26.2