From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 527BDC433F5 for ; Thu, 6 Oct 2022 13:40:54 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1ogR7M-0002Np-WA; Thu, 06 Oct 2022 13:40:53 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1ogR7M-0002Nj-1A for linux-f2fs-devel@lists.sourceforge.net; Thu, 06 Oct 2022 13:40:52 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=In-Reply-To:Content-Type:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=eLAvQxPTrW61bFz1sANG5Y81u18aSgNqwRKiQkasIrQ=; b=Zs4PMNWUJ8Gt2N929ZMYSypF0a 34CSqGZTg+hN99W5bNcUifDKI0Sz/JB+GI6jDxUXNYoRQH0vm0cGlxVhGSi76m3BCsyDpPj4Dqmpz 2hsIXICsi1XhcufndzsXWOtb+A4RsL1TjxcCX3rh9UmfQAnQqpYP7rKtcvW1dBNw3KVA=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To :From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=eLAvQxPTrW61bFz1sANG5Y81u18aSgNqwRKiQkasIrQ=; b=Vczi0vlgFScmwia5W4D0PNoZ7i 0iN3Do2nWQVl6iTOmeV4pA5ik+EtEw302iGfeaqjFAPcpBeiR4UYiuX5qaCZRUjYoDCQeoEeRM68z MK9Xh3cPaEX1NrEMpNwPdmavChcvjUf60QV3WFCLAFRkS+Q0zlvPwlQdZ4VK+bUWIt0U=; Received: from mail-pl1-f174.google.com ([209.85.214.174]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.95) id 1ogR7L-0001vV-Bm for linux-f2fs-devel@lists.sourceforge.net; Thu, 06 Oct 2022 13:40:51 +0000 Received: by mail-pl1-f174.google.com with SMTP id h10so1763003plb.2 for ; Thu, 06 Oct 2022 06:40:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date; bh=eLAvQxPTrW61bFz1sANG5Y81u18aSgNqwRKiQkasIrQ=; b=Mjk55TEbLntyF5lT9fSI68nVndM1Msdjat/gJGZygPgfzU+WkmD3YJi9WXVGaCzM6v GxLLpAA6PXTqzjvO06yw50CV42lW4n/vIEByFS591YiP94BQoBhbbWQVP56HTGxk5Zgr BOk05yP29axd7oq4HdYwQK9SI5EUWt7gxVDMFJ+wkOreCPIVeriBrHDtpGfIe2ngJppN JQryL8z0uIEMfGv9GgcIhdNpUKCWmtH1vAJbOQzYFsOAjpmcoQIxgv9D+phyeqT1BAZz 6oBo+rhyLIIlr94eqFOQOrHm5nD105nysrFzzWFdbvZC9hK7I+vgzgKfrpoAG3/bFvxl ry9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date; bh=eLAvQxPTrW61bFz1sANG5Y81u18aSgNqwRKiQkasIrQ=; b=1EKTrXv5WiC5iZ9+0+io1Q5DbBaiHQ+lrvQigP79+HnAF4aYPdxyqseVmXcT2oY4xm npA2rtuAtZ/4zGxquH18EVOOuF5qGr+rSwdAARc1+dLyo6I1J0dyznxzHs4+jui30n19 bDtCjf9muuh5UBt35XVCRESVOohBcmqCpksKaZ6gdGspSWMAUaHMwgKVKvbAvIYRRm3f vsjP9o907O+MNuKGMHpIJcMmoj55X/i4zFEePnePAsHjtIdCM3FFncBitCAcN+V//KKt JmTr0azQNFr7kVIscxdICnDtZoOu5F5Ge24UvNdlz87tA/7K8+gHB5Pe/gkDgxpRGaBl vClQ== X-Gm-Message-State: ACrzQf0lc+kJG6Gm7cVJ40rQtR05Y0qBGTRDz0hHHXVxaWzDZE4o98cE OEsOn3NklcVTzzl8aZQde2YxX7vVMsPo96RI X-Google-Smtp-Source: AMsMyM6E3yRYr1dTGqd6nAazsF/RtsoaWoD6R93kcYIR9nUQ6R8mMrLb2v1joGjgdIDD15O6MaD6sg== X-Received: by 2002:a05:6214:d06:b0:4ad:1fe1:9b49 with SMTP id 6-20020a0562140d0600b004ad1fe19b49mr3536957qvh.57.1665060472470; Thu, 06 Oct 2022 05:47:52 -0700 (PDT) Received: from ziepe.ca (hlfxns017vw-47-55-122-23.dhcp-dynamic.fibreop.ns.bellaliant.net. [47.55.122.23]) by smtp.gmail.com with ESMTPSA id j3-20020a05620a410300b006b5bf5d45casm20676675qko.27.2022.10.06.05.47.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Oct 2022 05:47:50 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.95) (envelope-from ) id 1ogQI1-00A0xr-QZ; Thu, 06 Oct 2022 09:47:49 -0300 Date: Thu, 6 Oct 2022 09:47:49 -0300 From: Jason Gunthorpe To: "Jason A. Donenfeld" Message-ID: References: <20221005214844.2699-1-Jason@zx2c4.com> <20221005214844.2699-4-Jason@zx2c4.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20221005214844.2699-4-Jason@zx2c4.com> X-Headers-End: 1ogR7L-0001vV-Bm Subject: Re: [f2fs-dev] [PATCH v1 3/5] treewide: use get_random_u32() when possible X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrew Lunn , "Darrick J . Wong" , Ulf Hansson , dri-devel@lists.freedesktop.org, Andrii Nakryiko , Hans Verkuil , linux-sctp@vger.kernel.org, "Md . Haris Iqbal" , Miquel Raynal , Christoph Hellwig , Andy Gospodarek , Sergey Matyukevich , Rohit Maheshwari , Michael Ellerman , ceph-devel@vger.kernel.org, Christophe Leroy , Jozsef Kadlecsik , Nilesh Javali , Jean-Paul Roubelat , Dick Kennedy , Jay Vosburgh , Potnuri Bharat Teja , Vinay Kumar Yadav , linux-nfs@vger.kernel.org, Nicholas Piggin , Igor Mitsyanko , Andy Lutomirski , linux-hams@vger.kernel.org, Thomas Gleixner , Trond Myklebust , linux-raid@vger.kernel.org, Neil Horman , Hante Meuleman , Greg Kroah-Hartman , linux-usb@vger.kernel.org, Michael Chan , linux-kernel@vger.kernel.org, Varun Prakash , Chuck Lever , netfilter-devel@vger.kernel.org, Masami Hiramatsu , Jiri Olsa , Jan Kara , linux-fsdevel@vger.kernel.org, Lars Ellenberg , linux-media@vger.kernel.org, Claudiu Beznea , Sharvari Harisangam , linux-fbdev@vger.kernel.org, linux-doc@vger.kernel.org, linux-mmc@vger.kernel.org, Dave Hansen , Song Liu , Eric Dumazet , target-devel@vger.kernel.org, John Stultz , Stanislav Fomichev , Gregory Greenman , drbd-dev@lists.linbit.com, dev@openvswitch.org, Leon Romanovsky , Helge Deller , Hugh Dickins , James Smart , Anil S Keshavamurthy , Pravin B Shelar , Julian Anastasov , coreteam@netfilter.org, Veaceslav Falico , Yonghong Song , Namjae Jeon , linux-crypto@vger.kernel.org, Santosh Shilimkar , Ganapathi Bhat , linux-actions@lists.infradead.org, Simon Horman , Jaegeuk Kim , Mika Westerberg , Andrew Morton , OGAWA Hirofumi , Hao Luo , Theodore Ts'o , Stephen Boyd , Dennis Dalessandro , Florian Westphal , Andreas =?utf-8?Q?F=C3=A4rber?= , Jon Maloy , Vlad Yasevich , Anna Schumaker , Yehezkel Bernat , Haoyue Xu , Heiner Kallweit , linux-wireless@vger.kernel.org, Marcelo Ricardo Leitner , Rasmus Villemoes , linux-nvme@lists.infradead.org, Michal Januszewski , linux-mtd@lists.infradead.org, kasan-dev@googlegroups.com, Cong Wang , Thomas Sailer , Ajay Singh , Xiubo Li , Sagi Grimberg , Daniel Borkmann , Jonathan Corbet , linux-rdma@vger.kernel.org, lvs-devel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, "Naveen N . Rao" , Ilya Dryomov , Paolo Abeni , Pablo Neira Ayuso , Marco Elver , Kees Cook , Yury Norov , "James E . J . Bottomley" , Jamal Hadi Salim , KP Singh , Borislav Petkov , Keith Busch , Dan Williams , Mauro Carvalho Chehab , Franky Lin , Arend van Spriel , linux-ext4@vger.kernel.org, Wenpeng Liang , "Martin K . Petersen" , Xinming Hu , linux-stm32@st-md-mailman.stormreply.com, Jeff Layton , linux-xfs@vger.kernel.org, netdev@vger.kernel.org, Ying Xue , Manish Rangankar , "David S . Miller" , Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= , Vignesh Raghavendra , Peter Zijlstra , "H . Peter Anvin" , Alexandre Torgue , Amitkumar Karwar , linux-mm@kvack.org, Andreas Dilger , Ayush Sawal , Andreas Noever , Jiri Pirko , linux-f2fs-devel@lists.sourceforge.net, Jack Wang , Steffen Klassert , rds-devel@oss.oracle.com, Herbert Xu , linux-scsi@vger.kernel.org, dccp@vger.kernel.org, Richard Weinberger , Russell King , SHA-cyfmac-dev-list@infineon.com, Ingo Molnar , Jakub Kicinski , John Fastabend , Maxime Coquelin , Manivannan Sadhasivam , Michael Jamet , Kalle Valo , Akinobu Mita , linux-block@vger.kernel.org, dmaengine@vger.kernel.org, Hannes Reinecke , Andy Shevchenko , Dmitry Vyukov , Jens Axboe , cake@lists.bufferbloat.net, brcm80211-dev-list.pdl@broadcom.com, Yishai Hadas , Hideaki YOSHIFUJI , linuxppc-dev@lists.ozlabs.org, David Ahern , Philipp Reisner , Stephen Hemminger , Christoph =?utf-8?Q?B=C3=B6hmwalder?= , Vinod Koul , tipc-discussion@lists.sourceforge.net, Thomas Graf , Johannes Berg , Sungjong Seo , Martin KaFai Lau Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On Wed, Oct 05, 2022 at 11:48:42PM +0200, Jason A. Donenfeld wrote: > index 14392c942f49..499a425a3379 100644 > --- a/drivers/infiniband/hw/cxgb4/cm.c > +++ b/drivers/infiniband/hw/cxgb4/cm.c > @@ -734,7 +734,7 @@ static int send_connect(struct c4iw_ep *ep) > &ep->com.remote_addr; > int ret; > enum chip_type adapter_type = ep->com.dev->rdev.lldi.adapter_type; > - u32 isn = (prandom_u32() & ~7UL) - 1; > + u32 isn = (get_random_u32() & ~7UL) - 1; Maybe this wants to be written as (prandom_max(U32_MAX >> 7) << 7) | 7 ? > diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c > index fd9d7f2c4d64..a605cf66b83e 100644 > --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c > +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c > @@ -465,7 +465,7 @@ static int ipoib_cm_req_handler(struct ib_cm_id *cm_id, > goto err_qp; > } > > - psn = prandom_u32() & 0xffffff; > + psn = get_random_u32() & 0xffffff; prandom_max(0xffffff + 1) ? Jason _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel