4:04 p.m.
Hi Jiaxun,
I love your patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[also build test WARNING on v5.9-rc1 next-20200817]
[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/Jiaxun-Yang/R4000-clock-enhancem...
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
9123e3a74ec7b934a4a099e98af6a61c2f80bbf5
config: mips-allyesconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips
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 >>):
> arch/mips/kernel/sync-r4k.c:28:6: warning: no previous prototype
for 'synchronise_count_master' [-Wmissing-prototypes]
28 | void
synchronise_count_master(void *unused)
| ^~~~~~~~~~~~~~~~~~~~~~~~
# https://github.com/0day-ci/linux/commit/6c760a310d6f07efede56e732f3de2e2a...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
Jiaxun-Yang/R4000-clock-enhancements-for-Loongson/20200817-115351
git checkout 6c760a310d6f07efede56e732f3de2e2a944e361
vim +/synchronise_count_master +28 arch/mips/kernel/sync-r4k.c
27
28 void synchronise_count_master(void *unused)
29 {
30 unsigned long flags;
31 long delta;
32 int i;
33
34 if (atomic_read(&sync_stage) != STAGE_START)
35 BUG();
36
37 local_irq_save(flags);
38
39 cur_count = read_c0_count();
40 smp_wmb();
41 atomic_inc(&sync_stage); /* inc to STAGE_MASTER_READY */
42
43 for (i = 0; i < MAX_LOOPS; i++) {
44 cur_count = read_c0_count();
45 smp_wmb();
46 if (atomic_read(&sync_stage) == STAGE_SLAVE_SYNCED)
47 break;
48 }
49
50 delta = read_c0_count() - fini_count;
51
52 local_irq_restore(flags);
53
54 if (i == MAX_LOOPS)
55 pr_err("sync-r4k: Master: synchronise timeout\n");
56 else
57 pr_info("sync-r4k: Master: synchronise succeed, maximum delta: %ld\n",
delta);
58
59 return;
60 }
61
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org