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 X-Spam-Level: X-Spam-Status: No, score=-5.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 C7D40C2D0DA for ; Thu, 26 Dec 2019 16:16:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 99144206CB for ; Thu, 26 Dec 2019 16:16:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="OOwZeBmE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726336AbfLZQQC (ORCPT ); Thu, 26 Dec 2019 11:16:02 -0500 Received: from mail-pf1-f193.google.com ([209.85.210.193]:38988 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726236AbfLZQQC (ORCPT ); Thu, 26 Dec 2019 11:16:02 -0500 Received: by mail-pf1-f193.google.com with SMTP id q10so13374529pfs.6; Thu, 26 Dec 2019 08:16:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=jkvhyKVe9beEFOrVuTAJtQsNNZWB09LHeEspW9aoOto=; b=OOwZeBmE81M04vqBjpbAQPzE1Jv7jX88b+pZMM4skQSdW5QALfcM5UmXOZhj7/FTkj 4DhhNJVBgdY2v5jYTZSvR7SjywMtapzuo94KlQhX+i6gd5qEU70YJjXcGW5wlrv6/DLH 04erO3Xts4xY+OTACxMlHd9zwhYsvTs+7+b5tSqtSzRRF+2vJLzlc5ShWkr6yXDN/Z5P Cs6NqkIQzW5fpc3w9talZH/jXomQOF8gLQG2TxuLxk/W4pIU+2n6OV4BfIDq9Ls7bXG5 N7LmxXMt8wpbp7C6l1/KyrBUR5jHtMqnYnA9OSENlKkWdwirmF4pu/lCe4EH/9TXAcbZ hRIQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=jkvhyKVe9beEFOrVuTAJtQsNNZWB09LHeEspW9aoOto=; b=MR8G+z+lpp4nYq24VPrcW5ZklKa6dQ5o1Qq91M6KQcLSkPK/bY2Ves2yrSa30I7GZy EwsfwHLwCNWOMa0I7JCzav6QW4cK7L7zEcOklGdGvI+1r/tLGzjzVbsvmBA2KNdfgaBN TzM81/ckVK0wtHSdafveV8kS2v84fQ7/BGJNYCEpOHRncMRnNWdCcOJPZo6orVAFsVPb d2cvi7rSYR4UzJDa7i2HV4Q34E7cuYsioSCzTcvyh+/MoI3NmO/DKw493MhDIMHtbu9m 4IzmduKvSuGLrxNMBIO7cO/goJRx+wTCsL6SabeBBSJuMX/FoGBwU5eMTFEvqarqMulG m/ng== X-Gm-Message-State: APjAAAWeena9yTT7Xw3IaNHXmZs4aAFKNESl9HY9ckIWDIfsNrTIXBC/ RTlLCBg5DWedhGtd8hDcbko= X-Google-Smtp-Source: APXvYqwVVFAvQB+Vc97OxwqUsIcXopUjlkiipdOIflXffhnqN51FDYFXBGdYuGbNEFp+n+2UzJ7cpw== X-Received: by 2002:a63:5809:: with SMTP id m9mr47977371pgb.26.1577376961023; Thu, 26 Dec 2019 08:16:01 -0800 (PST) Received: from localhost ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id j38sm34451197pgj.27.2019.12.26.08.15.59 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 26 Dec 2019 08:16:00 -0800 (PST) Date: Thu, 26 Dec 2019 08:15:59 -0800 From: Guenter Roeck To: Andy Shevchenko Cc: Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, Rasmus Villemoes , Yury Norov , linux-kernel@vger.kernel.org, Andrew Morton , William Breathitt Gray , Yury Norov Subject: Re: [PATCH v2 07/11] bitmap: Introduce bitmap_replace() helper Message-ID: <20191226161559.GA26197@roeck-us.net> References: <20191022172922.61232-1-andriy.shevchenko@linux.intel.com> <20191022172922.61232-8-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191022172922.61232-8-andriy.shevchenko@linux.intel.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Hi, On Tue, Oct 22, 2019 at 08:29:18PM +0300, Andy Shevchenko wrote: > In some drivers we want to have a single operation over bitmap which is > an equivalent to: > > *dst = (*old & ~(*mask)) | (*new & *mask) > > Introduce bitmap_replace() helper for this. > > Cc: Yury Norov > Cc: Rasmus Villemoes > Signed-off-by: Andy Shevchenko This patch results in the following boot log messages on various architectures. I have seen it on arm and mipsel, but others may be affected as well. test_bitmap: [lib/test_bitmap.c:282] bitmaps contents differ: expected "0-1,4-5,8,12-13,16,20-21,24,28,32-33,36-37,40-41,44-45,48-49,52-53,56-57,60-61", got "0-2,4-5,8,12-13,16,20-21,24,28,32-33,36-37,40-41,44-45,48-49,52-53,55-57,60-61" test_bitmap: [lib/test_bitmap.c:286] bitmaps contents differ: expected "0,4,8-9,12,16-17,20,24-25,28-29,32-34,36-38,40-42,44-46,48-50,52-54,56-58,60-62", got "0,4,6,8-10,12,14,16-18,20,22,24-26,28-30,32-54,56-63" test_bitmap: [lib/test_bitmap.c:290] bitmaps contents differ: expected "0-1,4-5,8,12-13,16,20-21,24,28,32-33,36-37,40-41,44-45,48-49,52-53,56-57,60-61", got "0-2,4-5,8,12-13,16,20-21,24,28,32-33,36-37,40-41,44-45,48-49,52-53,55-57,60-61" test_bitmap: [lib/test_bitmap.c:294] bitmaps contents differ: expected "0,4,8-9,12,16-17,20,24-25,28-29,32-34,36-38,40-42,44-46,48-50,52-54,56-58,60-62", got "0,4,6,8-10,12,14,16-18,20,22,24-26,28-30,32-54,56-63" Guenter