From patchwork Sat Aug 14 21:16:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yury Norov X-Patchwork-Id: 12436895 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2994FC4338F for ; Sat, 14 Aug 2021 21:17:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 11E7460EE2 for ; Sat, 14 Aug 2021 21:17:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233567AbhHNVSE (ORCPT ); Sat, 14 Aug 2021 17:18:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53904 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233354AbhHNVR6 (ORCPT ); Sat, 14 Aug 2021 17:17:58 -0400 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B7BE4C061764; Sat, 14 Aug 2021 14:17:29 -0700 (PDT) Received: by mail-pl1-x62a.google.com with SMTP id u15so864535plg.13; Sat, 14 Aug 2021 14:17:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=sW0jJ5BzCWKEZDvFC9cMEYLIv2cIm64unRMGWihrNWQ=; b=uErIx4JmQ76cCCVPx5CCKW2Mj3AD2fjDWWnuh0GNL9v46FURJRmrpdoQfoGj6/b3qN jTSZFekWthrYQHMgmxEHxeC9W+nvXnAQ/eSBkyikvooiYv0PNTCj65It9BdCVou31xo7 poXO8Mt3Lh6koIW1t95Lc3lbPnKVB4TTWh9pBOhkabnpgMdXzwUmxcutki295pt/5Cd6 Ta9PaSmUC4FZrm7JQWm9TLjWnfyoIOczhxva+/Q2JHro9K/s/8Or3BV/aXMTnFEdhZX1 +Sq0s6ZpuJ82VVpwSWNxotRAlj2vToBAJ+wSOdgj4VYtu6Bhv1Ane3qLZ04Hyn0oFg+I 02YQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=sW0jJ5BzCWKEZDvFC9cMEYLIv2cIm64unRMGWihrNWQ=; b=Y0iV8UkQp+ztf68P/9P68XUQx9XxFGWZCjj01jMLS24ly9ewf9vGK9tuY4QtT6QKhz yEQaQOSex1bvbOYZeyhh6GXBZ5CGJugVgcM+C/JhZEpx3x+Zo2KA1ZgPuyCUimmuXWFn Pn5LX3kTEVe/lixzTOY35WaVIRwvnxWgA8E0jLStVKgarorcmfCK2lN02rNCROHLjk4b O4MTAXTOXXhLRV6d/tcjIJlka8MeM11AIwH1kcfTVpc6uHLpb0BTl3GvXnISZ1PcBkP0 rUyIpREoK5aFqGCOscVbm0/f5LCuTd45yG+2SGr3eB7bSSVXef9QkMIURsDVPZR8eOZO K6Yg== X-Gm-Message-State: AOAM533yCGknhnV40fxxsLlXpWdghsAbgEaJm2RTCrCKGn252K1zV806 ggqQvR50s2PdfYKUufJXC9I= X-Google-Smtp-Source: ABdhPJzVZ5bHEr1/RrNfwAETbYe2CB/HsbRwMbDkIcRaF0YVQ1BpIBuyWPB4OY1UB35YRShRY1kJAQ== X-Received: by 2002:a62:dd57:0:b029:3cd:c96e:625e with SMTP id w84-20020a62dd570000b02903cdc96e625emr8328640pff.45.1628975849220; Sat, 14 Aug 2021 14:17:29 -0700 (PDT) Received: from localhost ([12.28.44.171]) by smtp.gmail.com with ESMTPSA id w186sm6722230pfw.78.2021.08.14.14.17.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 Aug 2021 14:17:28 -0700 (PDT) From: Yury Norov To: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mmc@vger.kernel.org, linux-perf-users@vger.kernel.org, kvm@vger.kernel.org, "James E.J. Bottomley" , Alexander Lobakin , Alexander Shishkin , Alexey Klimov , Andrea Merello , Andy Shevchenko , Arnaldo Carvalho de Melo , Arnd Bergmann , Ben Gardon , Benjamin Herrenschmidt , Brian Cain , Catalin Marinas , Christoph Lameter , Daniel Bristot de Oliveira , David Hildenbrand , Dennis Zhou , Geert Uytterhoeven , Heiko Carstens , Ian Rogers , Ingo Molnar , Jaegeuk Kim , Jakub Kicinski , Jiri Olsa , Joe Perches , Jonas Bonn , Leo Yan , Mark Rutland , Namhyung Kim , Palmer Dabbelt , Paolo Bonzini , Peter Xu , Peter Zijlstra , Petr Mladek , Rasmus Villemoes , Rich Felker , Samuel Mendoza-Jonas , Sean Christopherson , Sergey Senozhatsky , Shuah Khan , Stefan Kristiansson , Steven Rostedt , Tejun Heo , Thomas Bogendoerfer , Ulf Hansson , Will Deacon , Wolfram Sang , Yoshinori Sato , Yury Norov Cc: kernel test robot Subject: [PATCH 01/17] bitops: protect find_first_{,zero}_bit properly Date: Sat, 14 Aug 2021 14:16:57 -0700 Message-Id: <20210814211713.180533-2-yury.norov@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210814211713.180533-1-yury.norov@gmail.com> References: <20210814211713.180533-1-yury.norov@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org find_first_bit() and find_first_zero_bit() are not protected with ifdefs as other functions in find.h. It causes build errors on some platforms if CONFIG_GENERIC_FIND_FIRST_BIT is enabled. Signed-off-by: Yury Norov Fixes: 2cc7b6a44ac2 ("lib: add fast path for find_first_*_bit() and find_last_bit()") Reported-by: kernel test robot Tested-by: Wolfram Sang --- include/asm-generic/bitops/find.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/asm-generic/bitops/find.h b/include/asm-generic/bitops/find.h index 0d132ee2a291..835f959a25f2 100644 --- a/include/asm-generic/bitops/find.h +++ b/include/asm-generic/bitops/find.h @@ -97,6 +97,7 @@ unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, #ifdef CONFIG_GENERIC_FIND_FIRST_BIT +#ifndef find_first_bit /** * find_first_bit - find the first set bit in a memory region * @addr: The address to start the search at @@ -116,7 +117,9 @@ unsigned long find_first_bit(const unsigned long *addr, unsigned long size) return _find_first_bit(addr, size); } +#endif +#ifndef find_first_zero_bit /** * find_first_zero_bit - find the first cleared bit in a memory region * @addr: The address to start the search at @@ -136,6 +139,8 @@ unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size) return _find_first_zero_bit(addr, size); } +#endif + #else /* CONFIG_GENERIC_FIND_FIRST_BIT */ #ifndef find_first_bit