{"id":2198287,"url":"http://patchwork.ozlabs.org/api/1.0/covers/2198287/?format=json","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.0/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260219185409.708130-1-jsnow@redhat.com>","date":"2026-02-19T18:54:08","name":"[v2,0/1] rust: use checked_div()","submitter":{"id":64343,"url":"http://patchwork.ozlabs.org/api/1.0/people/64343/?format=json","name":"John Snow","email":"jsnow@redhat.com"},"series":[{"id":492713,"url":"http://patchwork.ozlabs.org/api/1.0/series/492713/?format=json","date":"2026-02-19T18:54:08","name":"rust: use checked_div()","version":2,"mbox":"http://patchwork.ozlabs.org/series/492713/mbox/"}],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=JOZVSMRD;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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Thu, 19 Feb 2026 13:54:20 -0500","from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com\n (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by\n relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3,\n cipher=TLS_AES_256_GCM_SHA384) id us-mta-635-L7Zg-1F_OR-o-P2qRJNANg-1; Thu,\n 19 Feb 2026 13:54:14 -0500","from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com\n (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS\n id CB4511800615; Thu, 19 Feb 2026 18:54:12 +0000 (UTC)","from jsnow-thinkpadp16vgen1.westford.csb (unknown [10.22.64.164])\n by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP\n id 7378E1954117; Thu, 19 Feb 2026 18:54:10 +0000 (UTC)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1771527255;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding;\n bh=muNJkDHkTZ0DlgE6VnrMP0Q+z0h1ZSqviga90icLIzI=;\n b=JOZVSMRDiDr8VSVZuPnOy6DsDbfER8OHZbcZrEnPWvrmWa2ri/Vvc0hMakk/iz3Lox94DY\n hQNuXEdg/jqkscjnPCWxV+Vseb1bx75ptgb79bW2QSaLMe50A+6CLw9eUXqGLr1ebaZv+q\n yEDHwXsvLNk6oJE6hXZiuRElgU6cTPw=","X-MC-Unique":"L7Zg-1F_OR-o-P2qRJNANg-1","X-Mimecast-MFC-AGG-ID":"L7Zg-1F_OR-o-P2qRJNANg_1771527253","From":"John Snow ","To":"qemu-devel@nongnu.org","Cc":"qemu-rust@nongnu.org,\n Manos Pitsidianakis ,\n John Snow ","Subject":"[PATCH v2 0/1] rust: use checked_div()","Date":"Thu, 19 Feb 2026 13:54:08 -0500","Message-ID":"<20260219185409.708130-1-jsnow@redhat.com>","Content-Type":"text/plain; charset=\"utf-8\"","MIME-Version":"1.0","Content-Transfer-Encoding":"quoted-printable","X-Scanned-By":"MIMEDefang 3.0 on 10.30.177.17","Received-SPF":"pass client-ip=170.10.129.124; envelope-from=jsnow@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com","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=-0.045,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001,\n SPF_HELO_PASS=-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":"2.1.29","Precedence":"list","List-Id":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"When upgrading from Fedora 41 to Fedora 43 for our CI tests, (Which I do in\nhttps://patchew.org/QEMU/20260216212952.420120-1-jsnow@redhat.com/),\nclippy begins complaining about not using checked_div instead of\nmanually checking divisors; see https://gitlab.com/jsnow/qemu/-/jobs/13169193931\n\nThis patch aims to make Clippy happy and prevent any regressions caused\nby the lcitool refresh.\n\nv2:\n\n - Fixed divisor/dividend order for period_to_hz; the correct order is\n DIVIDEND.checked_div(DIVISOR); I had a thinko where I just inverted\n the formula from period_from_hz(), believing it was a perfect\n inverse; it isn't! Thank you very much to Richard Henderson for\n noticing my mistake.\n\nJohn Snow (1):\n rust: use checked_div to make clippy happy\n\n rust/hw/core/src/qdev.rs | 14 ++++++--------\n 1 file changed, 6 insertions(+), 8 deletions(-)"}