tree: git://git.cmpxchg.org/linux-mmotm.git master
head: 26d15497ee742346602a5bb90a1329a63b1e3f32
commit: 616dd44818e37e37561f4b59071de790d530c373 [319/343] linux-next-rejects
config: powerpc-defconfig (attached as .config)
compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 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
git checkout 616dd44818e37e37561f4b59071de790d530c373
# save the attached .config to linux build tree
GCC_VERSION=7.2.0 make.cross ARCH=powerpc
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
>> arch/powerpc//mm/mem.c:112:11: error: conflicting types for 'arch_add_memory'
int __ref arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
^~~~~~~~~~~~~~~
In file included from include/linux/mmzone.h:802:0,
from include/linux/gfp.h:6,
from arch/powerpc//mm/mem.c:25:
include/linux/memory_hotplug.h:114:12: note: previous declaration of 'arch_add_memory' was here
extern int arch_add_memory(int nid, u64 start, u64 size,
^~~~~~~~~~~~~~~
>> arch/powerpc//mm/mem.c:135:11: error: conflicting types for 'arch_remove_memory'
int __ref arch_remove_memory(int nid, u64 start, u64 size,
^~~~~~~~~~~~~~~~~~
In file included from include/linux/mmzone.h:802:0,
from include/linux/gfp.h:6,
from arch/powerpc//mm/mem.c:25:
include/linux/memory_hotplug.h:127:13: note: previous declaration of 'arch_remove_memory' was here
extern void arch_remove_memory(int nid, u64 start, u64 size,
^~~~~~~~~~~~~~~~~~
arch/powerpc//mm/mem.c: In function 'arch_remove_memory':
arch/powerpc//mm/mem.c:165:1: error: control reaches end of non-void function [-Werror=return-type]
}
^
cc1: all warnings being treated as errors
--
arch/powerpc//mm/mmu_context_iommu.c: In function 'mm_iommu_do_alloc':
>> arch/powerpc//mm/mmu_context_iommu.c:140:9: error: implicit declaration of function 'get_user_pages_longterm'; did you mean 'get_user_pages_locked'? [-Werror=implicit-function-declaration]
ret = get_user_pages_longterm(ua + (entry << PAGE_SHIFT), n,
^~~~~~~~~~~~~~~~~~~~~~~
get_user_pages_locked
cc1: all warnings being treated as errors
vim +/arch_add_memory +112 arch/powerpc//mm/mem.c
111
> 112 int __ref arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
113 struct mhp_restrictions *restrictions)
114 {
115 unsigned long start_pfn = start >> PAGE_SHIFT;
116 unsigned long nr_pages = size >> PAGE_SHIFT;
117 int rc;
118
119 if (resize_hpt_for_hotplug(memblock_phys_mem_size()) == -ENOSPC)
120 pr_warn("Hash collision while resizing HPT\n");
121
122 start = (unsigned long)__va(start);
123 rc = create_section_mapping(start, start + size, nid);
124 if (rc) {
125 pr_warn("Unable to create mapping for hot added memory 0x%llx..0x%llx: %d\n",
126 start, start + size, rc);
127 return -EFAULT;
128 }
129 flush_inval_dcache_range(start, start + size);
130
131 return __add_pages(nid, start_pfn, nr_pages, restrictions);
132 }
133
134 #ifdef CONFIG_MEMORY_HOTREMOVE
> 135 int __ref arch_remove_memory(int nid, u64 start, u64 size,
136 struct vmem_altmap *altmap)
137 {
138 unsigned long start_pfn = start >> PAGE_SHIFT;
139 unsigned long nr_pages = size >> PAGE_SHIFT;
140 struct page *page;
141 int ret;
142
143 /*
144 * If we have an altmap then we need to skip over any reserved PFNs
145 * when querying the zone.
146 */
147 page = pfn_to_page(start_pfn);
148 if (altmap)
149 page += vmem_altmap_offset(altmap);
150
151 __remove_pages(page_zone(page), start_pfn, nr_pages, altmap);
152
153 /* Remove htab bolted mappings for this section of memory */
154 start = (unsigned long)__va(start);
155 flush_inval_dcache_range(start, start + size);
156 ret = remove_section_mapping(start, start + size);
157 WARN_ON_ONCE(ret);
158
159 /* Ensure all vmalloc mappings are flushed in case they also
160 * hit that section of memory
161 */
162 vm_unmap_aliases();
163
164 resize_hpt_for_hotplug(memblock_phys_mem_size());
165 }
166 #endif
167 #endif /* CONFIG_MEMORY_HOTPLUG */
168
---
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