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Fri, 13 Dec 2019 16:19:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1576253974; 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=8LjIPDCpWRkfw5wVp11KGA8s6SR+qMeIEMfDWf9vzM4=; b=XsXn88rGbGj0Zee98sLU+/PNjoNn5sfIqmFtYa54AZJecKhV4TLManbqiDuxBVau1qX3nh L4bxhNzTDIBaclIe4GSbeCmA/SdAdVRYWG67FGPnVbhUl+ssMyh6GqB7DW0LcpkDAUIdk0 NyZe0HJB9a7tMkqjec+THj5STnq4CA0= From: Cornelia Huck To: Peter Maydell Subject: [PULL 08/16] s390x: kvm: Make kvm_sclp_service_call void Date: Fri, 13 Dec 2019 17:18:43 +0100 Message-Id: <20191213161851.24687-9-cohuck@redhat.com> In-Reply-To: <20191213161851.24687-1-cohuck@redhat.com> References: <20191213161851.24687-1-cohuck@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-MC-Unique: JQysbnDTOtGb0N6BNXfyeQ-1 X-Mimecast-Spam-Score: 0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 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: Thomas Huth , Janosch Frank , David Hildenbrand , Cornelia Huck , qemu-devel@nongnu.org, qemu-s390x@nongnu.org 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: Janosch Frank It defaults to returning 0 anyway and that return value is not necessary, as 0 is also the default rc that the caller would return. While doing that we can simplify the logic a bit and return early if we inject a PGM exception. Signed-off-by: Janosch Frank Reviewed-by: Thomas Huth Message-Id: <20191129091713.4582-1-frankja@linux.ibm.com> Reviewed-by: David Hildenbrand Signed-off-by: Cornelia Huck --- target/s390x/kvm.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c index 0c9d14b4b115..ad6e38c8761b 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -1159,13 +1159,13 @@ void kvm_s390_access_exception(S390CPU *cpu, uint16= _t code, uint64_t te_code) kvm_s390_vcpu_interrupt(cpu, &irq); } =20 -static int kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run, +static void kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run, uint16_t ipbh0) { CPUS390XState *env =3D &cpu->env; uint64_t sccb; uint32_t code; - int r =3D 0; + int r; =20 sccb =3D env->regs[ipbh0 & 0xf]; code =3D env->regs[(ipbh0 & 0xf0) >> 4]; @@ -1173,11 +1173,9 @@ static int kvm_sclp_service_call(S390CPU *cpu, struc= t kvm_run *run, r =3D sclp_service_call(env, sccb, code); if (r < 0) { kvm_s390_program_interrupt(cpu, -r); - } else { - setcc(cpu, r); + return; } - - return 0; + setcc(cpu, r); } =20 static int handle_b2(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) @@ -1240,7 +1238,7 @@ static int handle_b2(S390CPU *cpu, struct kvm_run *ru= n, uint8_t ipa1) setcc(cpu, 3); break; case PRIV_B2_SCLP_CALL: - rc =3D kvm_sclp_service_call(cpu, run, ipbh0); + kvm_sclp_service_call(cpu, run, ipbh0); break; default: rc =3D -1; --=20 2.21.0