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b=Haqov0izXIOErMSn1kVfFG0WC/pSX3oQNatYSLHClr6HHdxdREEoGLf2rXng/+e47u/AoY 1VKQOwjv7gNoiNYVANKYYIukIcN0hTECzAgUL+sXbFMQ92UIBfki0/+sgjqPaOugDzpSXp NKGfWrTKXgvHA1paVEudlqzDCA6aSwE= X-MC-Unique: K-PB-rMKOsmbunisWnGMbg-1 From: Miroslav Rezanina To: qemu-devel@nongnu.org Subject: [PATCH v2 1/2] Fix net.c warning on GCC 11 Date: Mon, 11 Jan 2021 18:09:40 +0100 Message-Id: <25f6c760c09c2238ad9bdaab97e4ae13bf5af339.1610384501.git.mrezanin@redhat.com> In-Reply-To: References: X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mrezanin@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.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=216.205.24.124; envelope-from=mrezanin@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.251, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" When building qemu with GCC 11, compiling eth.c file produce following warn= ing: warning: array subscript 'struct ip6_ext_hdr_routing[0]' is partly outsi= de array bounds of 'struct ip6_ext_hdr[1]' [-Warray-bounds] This caused by retyping from ip6_ext_hdr to ip6_ext_hdr_routing that has mo= re attributes. As this usage is expected, suppress the warning temporarily through the fun= ction using this retyping. Signed-off-by: Miroslav Rezanina --- net/eth.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/eth.c b/net/eth.c index 1e0821c5f8..b9bdd0435c 100644 --- a/net/eth.c +++ b/net/eth.c @@ -405,6 +405,8 @@ _eth_get_rss_ex_dst_addr(const struct iovec *pkt, int p= kt_frags, struct ip6_ext_hdr *ext_hdr, struct in6_address *dst_addr) { +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Warray-bounds" struct ip6_ext_hdr_routing *rthdr =3D (struct ip6_ext_hdr_routing *) e= xt_hdr; =20 if ((rthdr->rtype =3D=3D 2) && @@ -426,6 +428,7 @@ _eth_get_rss_ex_dst_addr(const struct iovec *pkt, int p= kt_frags, } =20 return false; +#pragma GCC diagnostic pop } =20 static bool --=20 2.18.4