On Sat, Sep 03, 2022 at 07:32:02AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: e47eb90a0a9ae20b82635b9b99a8d0979b757ad8 > commit: c21e4d92cbb920b50a809409bc56c6ca4f09e7bf [4318/4736] mm/swap: cache maximum swapfile size when init swap > config: x86_64-randconfig-a011 (https://download.01.org/0day-ci/archive/20220903/202209030759.1ODqXm2p-lkp@xxxxxxxxx/config) > compiler: gcc-11 (Debian 11.3.0-5) 11.3.0 > reproduce (this is a W=1 build): > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=c21e4d92cbb920b50a809409bc56c6ca4f09e7bf > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout c21e4d92cbb920b50a809409bc56c6ca4f09e7bf > # save the config file > mkdir build_dir && cp config build_dir/.config > make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/mm/ mm/ > > If you fix the issue, kindly add following tag where applicable > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All warnings (new ones prefixed by >>): > > >> arch/x86/mm/init.c:1057:15: warning: no previous prototype for 'arch_max_swapfile_size' [-Wmissing-prototypes] > 1057 | unsigned long arch_max_swapfile_size(void) > | ^~~~~~~~~~~~~~~~~~~~~~ > -- > >> mm/swapfile.c:2820:22: warning: no previous prototype for 'arch_max_swapfile_size' [-Wmissing-prototypes] > 2820 | __weak unsigned long arch_max_swapfile_size(void) > | ^~~~~~~~~~~~~~~~~~~~~~ > > > vim +/arch_max_swapfile_size +1057 arch/x86/mm/init.c > > 1055 > 1056 #ifdef CONFIG_SWAP > > 1057 unsigned long arch_max_swapfile_size(void) > > -- > 0-DAY CI Kernel Test Service > https://01.org/lkp Hi, Andrew, The oneliner patch fixes the issue for me, which is attached. The patch to squash in is within the subject after "fixup: " (ff516092aa69 ("mm/swap: cache maximum swapfile size when init swap", 2022-09-02)). Thanks, -- Peter Xu
>From 99ce98e66d67ecadc6a73791aa425d76155a9f59 Mon Sep 17 00:00:00 2001 From: Peter Xu <peterx@xxxxxxxxxx> Date: Sun, 4 Sep 2022 13:31:38 -0400 Subject: [PATCH] fixup! mm/swap: cache maximum swapfile size when init swap Content-type: text/plain Signed-off-by: Peter Xu <peterx@xxxxxxxxxx> --- include/linux/swapfile.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/swapfile.h b/include/linux/swapfile.h index 75fc069594a5..29182dfc0cc7 100644 --- a/include/linux/swapfile.h +++ b/include/linux/swapfile.h @@ -10,6 +10,7 @@ extern spinlock_t swap_lock; extern struct plist_head swap_active_head; extern struct swap_info_struct *swap_info[]; extern unsigned long generic_max_swapfile_size(void); +extern unsigned long arch_max_swapfile_size(void); /* Maximum swapfile size supported for the arch (not inclusive). */ extern unsigned long swapfile_maximum_size; /* Whether swap migration entry supports storing A/D bits for the arch */ -- 2.32.0
