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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 03A50C433E0 for ; Thu, 7 Jan 2021 00:31:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B955A230FE for ; Thu, 7 Jan 2021 00:31:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725978AbhAGAbs (ORCPT ); Wed, 6 Jan 2021 19:31:48 -0500 Received: from mail.kernel.org ([198.145.29.99]:56248 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725789AbhAGAbs (ORCPT ); Wed, 6 Jan 2021 19:31:48 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id AC09F22EBD; Thu, 7 Jan 2021 00:31:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1609979467; bh=LnGERbkA4u+GFJdQmftmpmEaBKIgs2R53ch0ouJLn6k=; h=Date:From:To:Subject:From; b=HyvRYNS7fNj1qrpnsJDCB6xQDdQ9+5xeY056Scf1EDwyMQQ6sNxZioo71UKNNT2CI c0oox84QU3w62MyPWRSOoO6dxvpOHl8UI+1SAWh1Ub/gs7Dofxqj6e+FhG/iNmD//v syhDvb9mbXYapoLk4T0VvdSthwOLqzUMNvxkmtYc= Date: Wed, 06 Jan 2021 16:31:07 -0800 From: akpm@linux-foundation.org To: mm-commits@vger.kernel.org, sjhuang@iluvatar.ai Subject: + lib-genalloc-change-return-type-to-unsigned-long-for-bitmap_set_ll.patch added to -mm tree Message-ID: <20210107003107.mLWIizY1y%akpm@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: lib/genalloc.c: change return type to unsigned long for bitmap_set_ll has been added to the -mm tree. Its filename is lib-genalloc-change-return-type-to-unsigned-long-for-bitmap_set_ll.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/lib-genalloc-change-return-type-to-unsigned-long-for-bitmap_set_ll.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/lib-genalloc-change-return-type-to-unsigned-long-for-bitmap_set_ll.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Huang Shijie Subject: lib/genalloc.c: change return type to unsigned long for bitmap_set_ll Just as bitmap_clear_ll(), change return type to unsigned long for bitmap_set_ll to avoid the possible overflow in future. Link: https://lkml.kernel.org/r/20210105031644.2771-1-sjhuang@iluvatar.ai Signed-off-by: Huang Shijie Signed-off-by: Andrew Morton --- lib/genalloc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/lib/genalloc.c~lib-genalloc-change-return-type-to-unsigned-long-for-bitmap_set_ll +++ a/lib/genalloc.c @@ -81,7 +81,8 @@ static int clear_bits_ll(unsigned long * * users set the same bit, one user will return remain bits, otherwise * return 0. */ -static int bitmap_set_ll(unsigned long *map, unsigned long start, unsigned long nr) +static unsigned long +bitmap_set_ll(unsigned long *map, unsigned long start, unsigned long nr) { unsigned long *p = map + BIT_WORD(start); const unsigned long size = start + nr; _ Patches currently in -mm which might be from sjhuang@iluvatar.ai are lib-genalloc-change-return-type-to-unsigned-long-for-bitmap_set_ll.patch