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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 19 Sep 2018 11:35:02 +0100 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w8JAZ1bS55509114 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 19 Sep 2018 10:35:01 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5CE63A4051; Wed, 19 Sep 2018 13:34:46 +0100 (BST) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CB092A404D; Wed, 19 Sep 2018 13:34:44 +0100 (BST) Received: from rapoport-lnx (unknown [9.148.207.135]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Wed, 19 Sep 2018 13:34:44 +0100 (BST) Date: Wed, 19 Sep 2018 13:34:57 +0300 From: Mike Rapoport To: Jonathan Cameron Cc: linux-mm@kvack.org, Andrew Morton , "David S. Miller" , Greg Kroah-Hartman , Ingo Molnar , Michael Ellerman , Michal Hocko , Paul Burton , Thomas Gleixner , Tony Luck , linux-ia64@vger.kernel.org, linux-mips@linux-mips.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linuxarm@huawei.com Subject: Re: [RFC PATCH 03/29] mm: remove CONFIG_HAVE_MEMBLOCK References: <1536163184-26356-1-git-send-email-rppt@linux.vnet.ibm.com> <1536163184-26356-4-git-send-email-rppt@linux.vnet.ibm.com> <20180919100449.00006df9@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180919100449.00006df9@huawei.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-TM-AS-GCONF: 00 x-cbid: 18091910-0028-0000-0000-000002FB7231 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18091910-0029-0000-0000-000023B52DB5 Message-Id: <20180919103457.GA20545@rapoport-lnx> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-09-19_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1809190110 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Jonathan, On Wed, Sep 19, 2018 at 10:04:49AM +0100, Jonathan Cameron wrote: > On Wed, 5 Sep 2018 18:59:18 +0300 > Mike Rapoport wrote: > > > All architecures use memblock for early memory management. There is no need > > for the CONFIG_HAVE_MEMBLOCK configuration option. > > > > Signed-off-by: Mike Rapoport > > Hi Mike, > > A minor editing issue in here that is stopping boot on arm64 platforms with latest > version of the mm tree. Can you please try the following patch: From 079bd5d24a01df3df9500d0a33d89cb9f7da4588 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Wed, 19 Sep 2018 13:29:27 +0300 Subject: [PATCH] of/fdt: fixup #ifdefs after removal of HAVE_MEMBLOCK config option The removal of HAVE_MEMBLOCK configuration option, mistakenly dropped the wrong #endif. This patch restores that #endif and removes the part that should have been actually removed, starting from #else and up to the correct #endif Reported-by: Jonathan Cameron Signed-off-by: Mike Rapoport --- drivers/of/fdt.c | 21 +-------------------- 1 file changed, 1 insertion(+), 20 deletions(-) diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 48314e9..bb532aa 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -1119,6 +1119,7 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname, #endif #ifndef MAX_MEMBLOCK_ADDR #define MAX_MEMBLOCK_ADDR ((phys_addr_t)~0) +#endif void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size) { @@ -1175,26 +1176,6 @@ int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base, return memblock_reserve(base, size); } -#else -void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size) -{ - WARN_ON(1); -} - -int __init __weak early_init_dt_mark_hotplug_memory_arch(u64 base, u64 size) -{ - return -ENOSYS; -} - -int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base, - phys_addr_t size, bool nomap) -{ - pr_err("Reserved memory not supported, ignoring range %pa - %pa%s\n", - &base, &size, nomap ? " (nomap)" : ""); - return -ENOSYS; -} -#endif - static void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) { return memblock_alloc(size, align); -- 2.7.4 > > diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c > > index 76c83c1..bd841bb 100644 > > --- a/drivers/of/fdt.c > > +++ b/drivers/of/fdt.c > > @@ -1115,13 +1115,11 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname, > > return 1; > > } > > > > -#ifdef CONFIG_HAVE_MEMBLOCK > > #ifndef MIN_MEMBLOCK_ADDR > > #define MIN_MEMBLOCK_ADDR __pa(PAGE_OFFSET) > > #endif > > #ifndef MAX_MEMBLOCK_ADDR > > #define MAX_MEMBLOCK_ADDR ((phys_addr_t)~0) > > -#endif > > This isn't the right #endif. It is matching with the #ifndef MAX_MEMBLOCK_ADDR > not the intented #ifdef CONFIG_HAVE_MEMBLOCK. > > Now I haven't chased through the exact reason this is causing my acpi > arm64 system not to boot on the basis it is obviously miss-matched anyway > and I'm inherently lazy. It's resulting in stubs replacing the following weak > functions. > > early_init_dt_add_memory_arch > (this is defined elsewhere for some architectures but not arm) > > early_init_dt_mark_hotplug_memory_arch > (there is only one definition of this in the kernel so it doesn't > need to be weak or in the header etc). > > early_init_dt_reserve_memory_arch > (defined on mips but nothing else) > > Taking out the right endif also lets you drop an #else removing some stub > functions further down in here. > > Nice cleanup in general btw. > > Thanks, > > Jonathan > > > > void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size) > > { > -- Sincerely yours, Mike.