9:01 a.m.
On Thu, Dec 17, 2020 at 04:59:21AM +0800, kernel test robot wrote:
All errors (new ones prefixed by >>):
In file included from arch/powerpc/include/asm/cacheflush.h:111,
from include/linux/highmem.h:12,
from include/linux/pagemap.h:11,
from include/linux/blkdev.h:14,
from include/linux/blk-cgroup.h:23,
from include/linux/writeback.h:14,
from include/linux/memcontrol.h:22,
from include/linux/swap.h:9,
from include/linux/suspend.h:5,
from arch/powerpc/kernel/asm-offsets.c:23:
include/asm-generic/cacheflush.h: In function 'flush_dcache_folio':
>> include/asm-generic/cacheflush.h:64:33: error: subscripted value is neither
array nor pointer nor vector
64 | flush_dcache_page(&folio->page[--n]);
Thanks. Apparently I need to compile on more than just x86 ;-)
This compiles on aargh64:
@@ -61,7 +61,8 @@ static inline void flush_dcache_folio(struct folio *folio)
unsigned int n = folio_nr_pages(folio);
do {
- flush_dcache_page(&folio->page[--n]);
+ n--;
+ flush_dcache_page(&folio->page + n);
} while (n);
}
#endif
I'll fold it into my git tree.