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Message-ID: <201804172224.88o8gCzx%fengguang.wu@intel.com>
Date: Tue, 17 Apr 2018 22:19:27 +0800
From: kbuild test robot <lkp@...el.com>
To: Mike Kravetz <mike.kravetz@...cle.com>
Cc: kbuild-all@...org, linux-mm@...ck.org,
linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
Reinette Chatre <reinette.chatre@...el.com>,
Michal Hocko <mhocko@...nel.org>,
Christopher Lameter <cl@...ux.com>,
Guy Shattah <sguy@...lanox.com>,
Anshuman Khandual <khandual@...ux.vnet.ibm.com>,
Michal Nazarewicz <mina86@...a86.com>,
Vlastimil Babka <vbabka@...e.cz>,
David Nellans <dnellans@...dia.com>,
Laura Abbott <labbott@...hat.com>, Pavel Machek <pavel@....cz>,
Dave Hansen <dave.hansen@...el.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Mike Kravetz <mike.kravetz@...cle.com>
Subject: Re: [PATCH 2/3] mm: add find_alloc_contig_pages() interface
Hi Mike,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.17-rc1 next-20180417]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Mike-Kravetz/mm-change-type-of-free_contig_range-nr_pages-to-unsigned-long/20180417-194309
base: git://git.cmpxchg.org/linux-mmotm.git master
config: sparc-defconfig (attached as .config)
compiler: sparc-linux-gcc (GCC) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sparc
All errors (new ones prefixed by >>):
In file included from include/linux/slab.h:15:0,
from include/linux/irq.h:21,
from include/asm-generic/hardirq.h:13,
from arch/sparc/include/asm/hardirq_32.h:11,
from arch/sparc/include/asm/hardirq.h:7,
from include/linux/hardirq.h:9,
from include/linux/interrupt.h:11,
from include/linux/kernel_stat.h:9,
from arch/sparc/kernel/irq_32.c:15:
include/linux/gfp.h:580:15: error: unknown type name 'page'
static inline page *find_alloc_contig_pages(unsigned int order, gfp_t gfp,
^~~~
>> include/linux/gfp.h:585:13: error: 'free_contig_pages' defined but not used [-Werror=unused-function]
static void free_contig_pages(struct page *page, unsigned long nr_pages)
^~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
vim +/free_contig_pages +585 include/linux/gfp.h
570
571 #if (defined(CONFIG_MEMORY_ISOLATION) && defined(CONFIG_COMPACTION)) || defined(CONFIG_CMA)
572 /* The below functions must be run on a range from a single zone. */
573 extern int alloc_contig_range(unsigned long start, unsigned long end,
574 unsigned migratetype, gfp_t gfp_mask);
575 extern void free_contig_range(unsigned long pfn, unsigned long nr_pages);
576 extern struct page *find_alloc_contig_pages(unsigned int order, gfp_t gfp,
577 int nid, nodemask_t *nodemask);
578 extern void free_contig_pages(struct page *page, unsigned long nr_pages);
579 #else
> 580 static inline page *find_alloc_contig_pages(unsigned int order, gfp_t gfp,
581 int nid, nodemask_t *nodemask)
582 {
583 return NULL;
584 }
> 585 static void free_contig_pages(struct page *page, unsigned long nr_pages)
586 {
587 }
588 #endif
589
---
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