tree: https://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git since-4.12 head: ba5e8c23db5729ebdbafad983b07434c829cf5b6 commit: 51b33649873e78b3a7665a339df522ad4d9d2dd8 [523/540] mm/ZONE_DEVICE: new type of ZONE_DEVICE for unaddressable memory config: cris-etrax-100lx_v2_defconfig (attached as .config) compiler: cris-linux-gcc (GCC) 6.2.0 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 51b33649873e78b3a7665a339df522ad4d9d2dd8 # save the attached .config to linux build tree make.cross ARCH=cris All warnings (new ones prefixed by >>): In file included from mm/shmem.c:34:0: mm/shmem.c: In function 'shmem_free_swap': include/linux/swap.h:490:55: warning: value computed is not used [-Wunused-value] #define free_swap_and_cache(e) (is_migration_entry(e) || is_device_private_entry(e)) ^ >> mm/shmem.c:660:2: note: in expansion of macro 'free_swap_and_cache' free_swap_and_cache(radix_to_swp_entry(radswap)); ^~~~~~~~~~~~~~~~~~~ -- In file included from mm/madvise.c:22:0: mm/madvise.c: In function 'madvise_free_pte_range': include/linux/swap.h:490:55: warning: value computed is not used [-Wunused-value] #define free_swap_and_cache(e) (is_migration_entry(e) || is_device_private_entry(e)) ^ >> mm/madvise.c:353:4: note: in expansion of macro 'free_swap_and_cache' free_swap_and_cache(entry); ^~~~~~~~~~~~~~~~~~~ vim +/free_swap_and_cache +660 mm/shmem.c 6922c0c7 Hugh Dickins 2011-08-03 646 6922c0c7 Hugh Dickins 2011-08-03 647 /* 7a5d0fbb Hugh Dickins 2011-08-03 648 * Remove swap entry from radix tree, free the swap and its page cache. 7a5d0fbb Hugh Dickins 2011-08-03 649 */ 7a5d0fbb Hugh Dickins 2011-08-03 650 static int shmem_free_swap(struct address_space *mapping, 7a5d0fbb Hugh Dickins 2011-08-03 651 pgoff_t index, void *radswap) 7a5d0fbb Hugh Dickins 2011-08-03 652 { 6dbaf22c Johannes Weiner 2014-04-03 653 void *old; 7a5d0fbb Hugh Dickins 2011-08-03 654 7a5d0fbb Hugh Dickins 2011-08-03 655 spin_lock_irq(&mapping->tree_lock); 6dbaf22c Johannes Weiner 2014-04-03 656 old = radix_tree_delete_item(&mapping->page_tree, index, radswap); 7a5d0fbb Hugh Dickins 2011-08-03 657 spin_unlock_irq(&mapping->tree_lock); 6dbaf22c Johannes Weiner 2014-04-03 658 if (old != radswap) 6dbaf22c Johannes Weiner 2014-04-03 659 return -ENOENT; 7a5d0fbb Hugh Dickins 2011-08-03 @660 free_swap_and_cache(radix_to_swp_entry(radswap)); 6dbaf22c Johannes Weiner 2014-04-03 661 return 0; 7a5d0fbb Hugh Dickins 2011-08-03 662 } 7a5d0fbb Hugh Dickins 2011-08-03 663 :::::: The code at line 660 was first introduced by commit :::::: 7a5d0fbb29936fad7f17b1cb001b0c33a5f13328 tmpfs: convert shmem_truncate_range to radix-swap :::::: TO: Hugh Dickins <hughd@xxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
Attachment:
.config.gz
Description: application/gzip
