12:08 a.m.
Hi Mike,
[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on linus/master]
[also build test WARNING on v5.12-rc3 next-20210319]
[cannot apply to linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url:
https://github.com/0day-ci/linux/commits/Mike-Kravetz/hugetlb-add-demote-...
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
144c79ef33536b4ecb4951e07dbc1f2b7fa99d32
config: i386-randconfig-r005-20210318 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
#
https://github.com/0day-ci/linux/commit/c49b5026f94b3358774d991cd0b2c2f57...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
Mike-Kravetz/hugetlb-add-demote-split-page-functionality/20210309-081944
git checkout c49b5026f94b3358774d991cd0b2c2f5720c07a7
# save the attached .config to linux build tree
make W=1 ARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
mm/hugetlb.c: In function 'demote_size_show':
> mm/hugetlb.c:3011:16: warning: variable 'demote_size' set
but not used [-Wunused-but-set-variable]
3011 | unsigned long demote_size;
| ^~~~~~~~~~~
vim +/demote_size +3011 mm/hugetlb.c
3006
3007 static ssize_t demote_size_show(struct kobject *kobj,
3008 struct kobj_attribute *attr, char *buf)
3009 {
3010 struct hstate *h;
3011 unsigned long demote_size;
3012 int nid;
3013
3014 h = kobj_to_hstate(kobj, &nid);
3015 demote_size = h->demote_order;
3016
3017 return sysfs_emit(buf, "%lukB\n",
3018 (unsigned long)(PAGE_SIZE << h->demote_order) / SZ_1K);
3019 }
3020 HSTATE_ATTR_RO(demote_size);
3021
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org