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Mon, 11 Jan 2021 06:32:07 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-546-Xp2seipdNVCtl8IIdDSm3A-1; Mon, 11 Jan 2021 06:30:42 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7D2248049C2 for ; Mon, 11 Jan 2021 11:30:40 +0000 (UTC) Received: from workimage2020.rezanina.moe.rezanina.moe (unknown [10.40.192.93]) by smtp.corp.redhat.com (Postfix) with ESMTP id D22911972B for ; Mon, 11 Jan 2021 11:30:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1610364721; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:content-type:content-type:in-reply-to:in-reply-to: references:references; bh=vkyynJjgaTFyNhQ8kiTv/cdtlQ7wy4Pps2zJPjXPrRc=; 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charset="utf-8" From: Miroslav Rezanina 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 From nobody Sat Feb 7 14:23:41 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; 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Mon, 11 Jan 2021 11:30:41 +0000 (UTC) Received: from workimage2020.rezanina.moe.rezanina.moe (unknown [10.40.192.93]) by smtp.corp.redhat.com (Postfix) with ESMTP id DB5DD1972B for ; Mon, 11 Jan 2021 11:30:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1610364644; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:content-type:content-type:in-reply-to:in-reply-to: references:references; bh=RadEWp2tgvOsq3z8poaAdp82sJpHsXnHF3C3wmp+MFw=; b=g6MTknWxBhb6PNCqLERV0BlWcD0m7Oia930U1ptiLA+ddjz5mVtcHPPy2Uhgzc3Kl8nVLw GA6ZYj/HmRZr7af03/qBxMPpZzHVV95RSxAUovNn62sUfRGXbBUzgcRApi5CxGkqz7/yqZ eQ4Vy4647V0V2oUOLQRKR2AEEAG2O7c= X-MC-Unique: 2Awd-z91N5-yEdal_62nXg-1 From: mrezanin@redhat.com To: qemu-devel@nongnu.org Subject: [RHEL7 qemu-kvm PATCH 2/3] s390x: Fix vm name copy length Date: Mon, 11 Jan 2021 12:30:36 +0100 Message-Id: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; 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charset="utf-8" From: Miroslav Rezanina There are two cases when vm name is copied but closing \0 can be lost in case name is too long (>=3D256 characters). Updating length to copy so there is space for closing \0. Signed-off-by: Miroslav Rezanina --- target/s390x/kvm.c | 2 +- target/s390x/misc_helper.c | 4 +++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c index b8385e6b95..2313b5727e 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -1918,7 +1918,7 @@ static void insert_stsi_3_2_2(S390CPU *cpu, __u64 add= r, uint8_t ar) */ if (qemu_name) { strncpy((char *)sysib.ext_names[0], qemu_name, - sizeof(sysib.ext_names[0])); + sizeof(sysib.ext_names[0]) - 1); } else { strcpy((char *)sysib.ext_names[0], "KVMguest"); } diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c index 58dbc023eb..7c478b9e58 100644 --- a/target/s390x/misc_helper.c +++ b/target/s390x/misc_helper.c @@ -369,8 +369,10 @@ uint32_t HELPER(stsi)(CPUS390XState *env, uint64_t a0,= uint64_t r0, uint64_t r1) ebcdic_put(sysib.sysib_322.vm[0].name, qemu_name, MIN(sizeof(sysib.sysib_322.vm[0].name), strlen(qemu_name))); + memset((char *)sysib.sysib_322.ext_names[0], 0,=20 + sizeof(sysib.sysib_322.ext_names[0])); strncpy((char *)sysib.sysib_322.ext_names[0], qemu_name, - sizeof(sysib.sysib_322.ext_names[0])); + sizeof(sysib.sysib_322.ext_names[0]) - 1); } else { ebcdic_put(sysib.sysib_322.vm[0].name, "TCGguest", 8); strcpy((char *)sysib.sysib_322.ext_names[0], "TCGguest"); --=20 2.18.4 From nobody Sat Feb 7 14:23:41 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1610364898; cv=none; d=zohomail.com; s=zohoarc; b=EvPSBWq6PWOTVF3emBwuwyuVMHUWTvZPvlwVsWxJwDuKrcgkuYBvsTYeSSTrk3Et2Yax1ORw3h6ReGM5BhuqeuoQuhyiMdSRIcO5nnI5kflkTXNIhg69/TXaIjMy8qwl5a2ys1/z65WXr0Vbmpu0HY6LX1cLywJq5xEnPggVfCc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1610364898; h=Content-Type:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; 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d=redhat.com; s=mimecast20190719; t=1610364645; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:content-type:content-type:in-reply-to:in-reply-to: references:references; bh=+KIfK90vCRZwS+VDkKBvSVdDYYfZBVwlDNCXOaexfwc=; b=Y9Wmv7aPdpFEVMkURQWRdT3+6pBna3CGEYrCEm5q9c926Gno3Re4KlUBM3mkHFvy03oOZY AoBS/2MzIIxGE2qlk3rWO8/59tMOiLZdb+sJ+13OfwORowbgOzkT3J5RVRYVdQX/NrVKCH CUNwe99P21viPIrDqfvaOWmtHAlPuAw= X-MC-Unique: 5OEqv2zgOCWselDhFsendQ-1 From: mrezanin@redhat.com To: qemu-devel@nongnu.org Subject: [RHEL7 qemu-kvm PATCH 3/3] Fix tcg_out_op argument mismatch warning Date: Mon, 11 Jan 2021 12:30:37 +0100 Message-Id: <96033fbea8ab38a769c0ac9c23a217b4b5d32864.1610364304.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: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 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=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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" From: Miroslav Rezanina There's prototype mismatch between tcg/tcg.c and tcg/aarch/tcg-target.c.inc: tcg.c: static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args, const int *const_args); tcg-target.c.inc: static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg args[TCG_MAX_OP_ARGS], const int const_args[TCG_MAX_OP_ARGS]) This missmatch cause warnings on GCC 11: tcg/aarch64/tcg-target.c.inc:1855:37: error: argument 3 of type 'const = TCGArg[16]' {aka 'const long unsigned int[16]'} with mismatched bound [-Wer= ror=3Darray-parameter=3D] tcg/aarch64/tcg-target.c.inc:1856:34: error: argument 4 of type 'const = int[16]' with mismatched bound [-Werror=3Darray-parameter=3D] Only architectures with this definition are aarch and sparc. Fixing both ar= chs to use proper argument type. --- tcg/aarch64/tcg-target.c.inc | 3 +-- tcg/sparc/tcg-target.c.inc | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc index 26f71cb599..fe6bdbf721 100644 --- a/tcg/aarch64/tcg-target.c.inc +++ b/tcg/aarch64/tcg-target.c.inc @@ -1852,8 +1852,7 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg dat= a_reg, TCGReg addr_reg, static tcg_insn_unit *tb_ret_addr; =20 static void tcg_out_op(TCGContext *s, TCGOpcode opc, - const TCGArg args[TCG_MAX_OP_ARGS], - const int const_args[TCG_MAX_OP_ARGS]) + const TCGArg *args, const int *const_args) { /* 99% of the time, we can signal the use of extension registers by looking to see if the opcode handles 64-bit data. */ diff --git a/tcg/sparc/tcg-target.c.inc b/tcg/sparc/tcg-target.c.inc index 6775bd30fc..976f0f05af 100644 --- a/tcg/sparc/tcg-target.c.inc +++ b/tcg/sparc/tcg-target.c.inc @@ -1294,8 +1294,7 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg dat= a, TCGReg addr, } =20 static void tcg_out_op(TCGContext *s, TCGOpcode opc, - const TCGArg args[TCG_MAX_OP_ARGS], - const int const_args[TCG_MAX_OP_ARGS]) + const TCGArg *args, const int *const_args) { TCGArg a0, a1, a2; int c, c2; --=20 2.18.4