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Tue, 8 Jun 2021 09:36:57 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Tue, 8 Jun 2021 09:39:55 +0800 Received: from [10.174.177.243] (10.174.177.243) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Tue, 8 Jun 2021 09:39:54 +0800 Subject: Re: [PATCH v2 15/15] x86: convert to setup_initial_init_mm() To: Andrew Morton CC: , , Thomas Gleixner , Ingo Molnar , References: <20210604070633.32363-1-wangkefeng.wang@huawei.com> <20210604070633.32363-16-wangkefeng.wang@huawei.com> <20210607172608.fda6ee76f9b195428ddb1d0d@linux-foundation.org> From: Kefeng Wang Message-ID: <6dca29c0-bcb0-9af3-4d49-68b2b1c924e5@huawei.com> Date: Tue, 8 Jun 2021 09:39:54 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20210607172608.fda6ee76f9b195428ddb1d0d@linux-foundation.org> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US X-Originating-IP: [10.174.177.243] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected Authentication-Results: imf25.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=huawei.com; spf=pass (imf25.hostedemail.com: domain of wangkefeng.wang@huawei.com designates 45.249.212.188 as permitted sender) smtp.mailfrom=wangkefeng.wang@huawei.com X-Rspamd-Server: rspam02 X-Stat-Signature: 8wo5851yqp6zzhgsz1kpzn6gp7hjuj51 X-Rspamd-Queue-Id: B124D6000143 X-HE-Tag: 1623116403-669375 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 2021/6/8 8:26, Andrew Morton wrote: > On Fri, 4 Jun 2021 15:06:33 +0800 Kefeng Wang wrote: > >> Use setup_initial_init_mm() helper to simplify code. >> >> ... >> >> --- a/arch/x86/kernel/setup.c >> +++ b/arch/x86/kernel/setup.c >> @@ -868,10 +868,7 @@ void __init setup_arch(char **cmdline_p) >> =20 >> if (!boot_params.hdr.root_flags) >> root_mountflags &=3D ~MS_RDONLY; >> - init_mm.start_code =3D (unsigned long) _text; >> - init_mm.end_code =3D (unsigned long) _etext; >> - init_mm.end_data =3D (unsigned long) _edata; >> - init_mm.brk =3D _brk_end; >> + setup_initial_init_mm(_text, _etext, _edata, _brk_end); >> =20 >> code_resource.start =3D __pa_symbol(_text); >> code_resource.end =3D __pa_symbol(_etext)-1; > arch/x86/kernel/setup.c:873:47: warning: passing argument 4 of 'setup_i= nitial_init_mm' makes pointer from integer without a cast [-Wint-conversi= on] > 873 | setup_initial_init_mm(_text, _etext, _edata, _brk_end); > | ^~~~~~~~ > | | > | long unsigned in= t > In file included from ./include/linux/pid_namespace.h:7, > from ./include/linux/ptrace.h:10, > from ./include/linux/elfcore.h:11, > from ./include/linux/crash_core.h:6, > from ./include/linux/kexec.h:18, > from ./include/linux/crash_dump.h:5, > from arch/x86/kernel/setup.c:9: > ./include/linux/mm.h:248:29: note: expected 'void *' but argument is of= type 'long unsigned int' > 248 | void *end_data, void *brk); > | ~~~~~~^~~ > > > afaict the other architectures will warn this way, not sure. I check all archs again, the x86/m68k/powerpc/h8300 has use some value=20 which is not pointer , other are changed, but forget this one.=C2=A0 I do compile, but I don't k= now=20 why I missed it, sorry about this. > > Please check all that, refresh ,retest and resend? > . >