11:03 p.m.
tree: https://github.com/zen-kernel/zen-kernel 5.14/prjc
head: d549588e3d79002f0c4b567b49644318af78a3db
commit: 8e79ff69bdee272975f92e45e8b4ecf0690b636e [199/209] sched/alt: [Sync] 2f064a59a11f
sched: Change task_struct::state
config: nds32-defconfig (attached as .config)
compiler: nds32le-linux-gcc (GCC) 11.2.0
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
#
https://github.com/zen-kernel/zen-kernel/commit/8e79ff69bdee272975f92e45e...
git remote add zen-kernel-zen-kernel https://github.com/zen-kernel/zen-kernel
git fetch --no-tags zen-kernel-zen-kernel 5.14/prjc
git checkout 8e79ff69bdee272975f92e45e8b4ecf0690b636e
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir
ARCH=nds32 SHELL=/bin/bash kernel/sched/
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 >>):
kernel/sched/alt_core.c:114: warning: cannot understand function prototype: 'int
sched_yield_type __read_mostly = 1; '
kernel/sched/alt_core.c:3001: warning: Function parameter or member 'prev' not
described in 'prepare_task_switch'
kernel/sched/alt_core.c:3034: warning: Excess function parameter 'rq'
description in 'finish_task_switch'
kernel/sched/alt_core.c:5319: warning: Function parameter or member 'flags' not
described in 'sys_sched_setattr'
> kernel/sched/alt_core.c:5387: warning: expecting prototype for
sys_sched_getscheduler(). Prototype was for sys_sched_getparam() instead
vim +5387 kernel/sched/alt_core.c
f746b5817d3274 Alfred Chen 2019-08-19 5377
f746b5817d3274 Alfred Chen 2019-08-19 5378 /**
f746b5817d3274 Alfred Chen 2019-08-19 5379 * sys_sched_getscheduler - get the RT
priority of a thread
f746b5817d3274 Alfred Chen 2019-08-19 5380 * @pid: the pid in question.
f746b5817d3274 Alfred Chen 2019-08-19 5381 * @param: structure containing the RT
priority.
f746b5817d3274 Alfred Chen 2019-08-19 5382 *
f746b5817d3274 Alfred Chen 2019-08-19 5383 * Return: On success, 0 and the RT priority
is in @param. Otherwise, an error
f746b5817d3274 Alfred Chen 2019-08-19 5384 * code.
f746b5817d3274 Alfred Chen 2019-08-19 5385 */
f746b5817d3274 Alfred Chen 2019-08-19 5386 SYSCALL_DEFINE2(sched_getparam, pid_t, pid,
struct sched_param __user *, param)
f746b5817d3274 Alfred Chen 2019-08-19 @5387 {
f746b5817d3274 Alfred Chen 2019-08-19 5388 struct sched_param lp = { .sched_priority =
0 };
f746b5817d3274 Alfred Chen 2019-08-19 5389 struct task_struct *p;
f746b5817d3274 Alfred Chen 2019-08-19 5390 int retval = -EINVAL;
f746b5817d3274 Alfred Chen 2019-08-19 5391
f746b5817d3274 Alfred Chen 2019-08-19 5392 if (!param || pid < 0)
f746b5817d3274 Alfred Chen 2019-08-19 5393 goto out_nounlock;
f746b5817d3274 Alfred Chen 2019-08-19 5394
f746b5817d3274 Alfred Chen 2019-08-19 5395 rcu_read_lock();
f746b5817d3274 Alfred Chen 2019-08-19 5396 p = find_process_by_pid(pid);
f746b5817d3274 Alfred Chen 2019-08-19 5397 retval = -ESRCH;
f746b5817d3274 Alfred Chen 2019-08-19 5398 if (!p)
f746b5817d3274 Alfred Chen 2019-08-19 5399 goto out_unlock;
f746b5817d3274 Alfred Chen 2019-08-19 5400
f746b5817d3274 Alfred Chen 2019-08-19 5401 retval = security_task_getscheduler(p);
f746b5817d3274 Alfred Chen 2019-08-19 5402 if (retval)
f746b5817d3274 Alfred Chen 2019-08-19 5403 goto out_unlock;
f746b5817d3274 Alfred Chen 2019-08-19 5404
f746b5817d3274 Alfred Chen 2019-08-19 5405 if (task_has_rt_policy(p))
f746b5817d3274 Alfred Chen 2019-08-19 5406 lp.sched_priority = p->rt_priority;
f746b5817d3274 Alfred Chen 2019-08-19 5407 rcu_read_unlock();
f746b5817d3274 Alfred Chen 2019-08-19 5408
f746b5817d3274 Alfred Chen 2019-08-19 5409 /*
f746b5817d3274 Alfred Chen 2019-08-19 5410 * This one might sleep, we cannot do it
with a spinlock held ...
f746b5817d3274 Alfred Chen 2019-08-19 5411 */
f746b5817d3274 Alfred Chen 2019-08-19 5412 retval = copy_to_user(param, &lp,
sizeof(*param)) ? -EFAULT : 0;
f746b5817d3274 Alfred Chen 2019-08-19 5413
f746b5817d3274 Alfred Chen 2019-08-19 5414 out_nounlock:
f746b5817d3274 Alfred Chen 2019-08-19 5415 return retval;
f746b5817d3274 Alfred Chen 2019-08-19 5416
f746b5817d3274 Alfred Chen 2019-08-19 5417 out_unlock:
f746b5817d3274 Alfred Chen 2019-08-19 5418 rcu_read_unlock();
f746b5817d3274 Alfred Chen 2019-08-19 5419 return retval;
f746b5817d3274 Alfred Chen 2019-08-19 5420 }
f746b5817d3274 Alfred Chen 2019-08-19 5421
:::::: The code at line 5387 was first introduced by commit
:::::: f746b5817d3274fa4f458f87f6b452e7304b1d64 Project C v5.7.5-r2
:::::: TO: Alfred Chen <cchalpha(a)gmail.com>
:::::: CC: Alfred Chen <cchalpha(a)gmail.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org