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[2620:137:e000::1:20]) by mx.google.com with ESMTP id x22-20020aa7d396000000b004588af9ea19si11264776edq.166.2022.10.05.06.26.34; Wed, 05 Oct 2022 06:27:03 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=o8QZPc5b; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229903AbiJEMzI (ORCPT + 99 others); Wed, 5 Oct 2022 08:55:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60914 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229790AbiJEMzF (ORCPT ); Wed, 5 Oct 2022 08:55:05 -0400 Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4DC6531DC6; Wed, 5 Oct 2022 05:55:04 -0700 (PDT) Received: by mail-ed1-x52f.google.com with SMTP id w10so9951732edd.4; Wed, 05 Oct 2022 05:55:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=oKnfwKM3GfRfs1GdFXL3EzRBmRr1ntc133LstIFT5HA=; b=o8QZPc5baW5MF1RQoJHAZH7Gt6DAVEiyOTNqCpenkZ/Dl5z9UvI5H3fyFiQDIK4bNg 8cFH0jFD9HXfmdSsw2rB7YnGc0WNCyXNNMiT4zCg69K+sM5KZk00aK/qXiUAhfIGiGw3 hWg7SpUmZGGt+zhkcT04eN66aKclL0eMvEfnExbzBQDRdstHUV+yiDNhuX/ZaX8x7viZ EQflDDyyW8t7y/pPTuicCw/TO2ma7EmB/EFjPgoWOpN3e0+mNrHys146rf7RsHDtSh4z mp98Gw8k6GoEv63xjZ1xGnK+DlTVKtX74it0iuHKbYK6XJlp6cyPKivTELOShdhfENpx LPpA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=oKnfwKM3GfRfs1GdFXL3EzRBmRr1ntc133LstIFT5HA=; b=krpFjX5kXNZy3mHZwqwhgq4mHPXtNBoF66+3hAEmsBFUByekYICjpkvLqQr69pqZPE 8Reuh7q2ZI69n4/JgpAVkLUJMEE7+TdmLs4X9Vak9wlTNEVA4wXJwONLPgpo3WLpU7/K k7gi+EfnK3xYmsTel/eSX5faunhToI0avSOu/cF2CIUDBdnPYcNQBVzOH61X6fbpPXG4 IpXcSw3TAmPN2OgSXn3myB+tL8c3qVGbouF1CEAuEjW+vl4pEM1EVTUqPy7BHNCkLJnA KsiQ4I5fW9tLoe58R4LUjuD2wHtQnqN74mzW9F60tgy9P3/M3vEBCv3sttfoivjFXxpW yMGw== X-Gm-Message-State: ACrzQf1ZbhfTdcMPDVQzs14ltx75lcNh3D8pnXuvY/yozZGQX1+UvLIt BwRydHjXJXgUPIXCMzMe3In+PiWdCPcv83gsTeZj+IbI05w= X-Received: by 2002:a05:6402:1356:b0:459:3c9e:81d4 with SMTP id y22-20020a056402135600b004593c9e81d4mr10066457edw.148.1664974502908; Wed, 05 Oct 2022 05:55:02 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Sudip Mukherjee Date: Wed, 5 Oct 2022 13:54:26 +0100 Message-ID: Subject: Re: build failure of next-20221005 due to 4078ec1ef5ed ("LoongArch: Use TLB for ioremap()") To: Huacai Chen Cc: Huacai Chen , WANG Xuerui , loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, linux-next@vger.kernel.org Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 5, 2022 at 1:30 PM Huacai Chen wrote: > > Hi, Sudip, > > This seems a false positive. When the implementation of iounmap() is > empty (but this is completely legal I think), these drivers will cause > "unused variable error". And that error will fail the build as allmodconfig will have CONFIG_WERROR=y. -- Regards Sudip