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Date: Wed, 22 Dec 2021 03:54:05 +0800
From: kernel test robot <lkp@...el.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [peterz-queue:sched/wip.umcg 4/4] kernel/sched/umcg.c:223:67: error:
macro "__try_cmpxchg_user_asm" requires 6 arguments, but only 5 given
tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/wip.umcg
head: 53c79fbe7deb72a1d3ef8d8164f6dd8003677b34
commit: 53c79fbe7deb72a1d3ef8d8164f6dd8003677b34 [4/4] sched: User Mode Concurency Groups
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20211222/202112220301.rEoh3bVR-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=53c79fbe7deb72a1d3ef8d8164f6dd8003677b34
git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
git fetch --no-tags peterz-queue sched/wip.umcg
git checkout 53c79fbe7deb72a1d3ef8d8164f6dd8003677b34
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
kernel/sched/umcg.c: In function 'umcg_update_state':
>> kernel/sched/umcg.c:223:67: error: macro "__try_cmpxchg_user_asm" requires 6 arguments, but only 5 given
223 | } while (!unsafe_try_cmpxchg_user(&self->state, &old, new, Efault));
| ^
In file included from include/linux/uaccess.h:11,
from include/linux/sched/task.h:11,
from include/linux/sched/signal.h:9,
from include/linux/rcuwait.h:6,
from include/linux/percpu-rwsem.h:7,
from include/linux/fs.h:33,
from include/uapi/linux/aio_abi.h:31,
from include/linux/syscalls.h:78,
from kernel/sched/umcg.c:8:
arch/x86/include/asm/uaccess.h:428: note: macro "__try_cmpxchg_user_asm" defined here
428 | #define __try_cmpxchg_user_asm(itype, ltype, _ptr, _pold, _new, label) ({ \
|
In file included from include/linux/uaccess.h:11,
from include/linux/sched/task.h:11,
from include/linux/sched/signal.h:9,
from include/linux/rcuwait.h:6,
from include/linux/percpu-rwsem.h:7,
from include/linux/fs.h:33,
from include/uapi/linux/aio_abi.h:31,
from include/linux/syscalls.h:78,
from kernel/sched/umcg.c:8:
>> arch/x86/include/asm/uaccess.h:563:18: error: '__try_cmpxchg_user_asm' undeclared (first use in this function); did you mean 'try_cmpxchg_release'?
563 | case 8: __ret = __try_cmpxchg_user_asm("q", "r" \
| ^~~~~~~~~~~~~~~~~~~~~~
kernel/sched/umcg.c:223:12: note: in expansion of macro 'unsafe_try_cmpxchg_user'
223 | } while (!unsafe_try_cmpxchg_user(&self->state, &old, new, Efault));
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/uaccess.h:563:18: note: each undeclared identifier is reported only once for each function it appears in
563 | case 8: __ret = __try_cmpxchg_user_asm("q", "r" \
| ^~~~~~~~~~~~~~~~~~~~~~
kernel/sched/umcg.c:223:12: note: in expansion of macro 'unsafe_try_cmpxchg_user'
223 | } while (!unsafe_try_cmpxchg_user(&self->state, &old, new, Efault));
| ^~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/umcg.c: In function 'umcg_enqueue_runnable':
kernel/sched/umcg.c:408:95: error: macro "__try_cmpxchg_user_asm" requires 6 arguments, but only 5 given
408 | } while (!unsafe_try_cmpxchg_user(&server->runnable_workers_ptr, &first_ptr, self_ptr, Efault));
| ^
In file included from include/linux/uaccess.h:11,
from include/linux/sched/task.h:11,
from include/linux/sched/signal.h:9,
from include/linux/rcuwait.h:6,
from include/linux/percpu-rwsem.h:7,
from include/linux/fs.h:33,
from include/uapi/linux/aio_abi.h:31,
from include/linux/syscalls.h:78,
from kernel/sched/umcg.c:8:
arch/x86/include/asm/uaccess.h:428: note: macro "__try_cmpxchg_user_asm" defined here
428 | #define __try_cmpxchg_user_asm(itype, ltype, _ptr, _pold, _new, label) ({ \
|
In file included from include/linux/uaccess.h:11,
from include/linux/sched/task.h:11,
from include/linux/sched/signal.h:9,
from include/linux/rcuwait.h:6,
from include/linux/percpu-rwsem.h:7,
from include/linux/fs.h:33,
from include/uapi/linux/aio_abi.h:31,
from include/linux/syscalls.h:78,
from kernel/sched/umcg.c:8:
>> arch/x86/include/asm/uaccess.h:563:18: error: '__try_cmpxchg_user_asm' undeclared (first use in this function); did you mean 'try_cmpxchg_release'?
563 | case 8: __ret = __try_cmpxchg_user_asm("q", "r" \
| ^~~~~~~~~~~~~~~~~~~~~~
kernel/sched/umcg.c:408:12: note: in expansion of macro 'unsafe_try_cmpxchg_user'
408 | } while (!unsafe_try_cmpxchg_user(&server->runnable_workers_ptr, &first_ptr, self_ptr, Efault));
| ^~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/umcg.c: At top level:
kernel/sched/umcg.c:428:5: warning: no previous prototype for 'umcg_wait' [-Wmissing-prototypes]
428 | int umcg_wait(u64 timo)
| ^~~~~~~~~
vim +/__try_cmpxchg_user_asm +223 kernel/sched/umcg.c
182
183 /*
184 * Do a state transition: @from -> @to.
185 *
186 * Will clear UMCG_TF_PREEMPT, UMCG_TF_COND_WAIT.
187 *
188 * When @to == {BLOCKED,RUNNABLE}, update timestamps.
189 *
190 * Returns:
191 * 0: success
192 * -EAGAIN: when self->state != @from
193 * -EFAULT
194 */
195 static int umcg_update_state(struct task_struct *tsk,
196 struct umcg_task __user *self,
197 u32 from, u32 to)
198 {
199 u32 old, new;
200 u64 now;
201
202 if (to >= UMCG_TASK_RUNNABLE) {
203 switch (tsk->umcg_clock) {
204 case CLOCK_REALTIME: now = ktime_get_real_ns(); break;
205 case CLOCK_MONOTONIC: now = ktime_get_ns(); break;
206 case CLOCK_BOOTTIME: now = ktime_get_boottime_ns(); break;
207 case CLOCK_TAI: now = ktime_get_clocktai_ns(); break;
208 }
209 }
210
211 if (!user_access_begin(self, sizeof(*self)))
212 return -EFAULT;
213
214 unsafe_get_user(old, &self->state, Efault);
215 do {
216 if ((old & UMCG_TASK_MASK) != from)
217 goto fail;
218
219 new = old & ~(UMCG_TASK_MASK |
220 UMCG_TF_PREEMPT | UMCG_TF_COND_WAIT);
221 new |= to & UMCG_TASK_MASK;
222
> 223 } while (!unsafe_try_cmpxchg_user(&self->state, &old, new, Efault));
224
225 if (to == UMCG_TASK_BLOCKED)
226 unsafe_put_user(now, &self->blocked_ts, Efault);
227 if (to == UMCG_TASK_RUNNABLE)
228 unsafe_put_user(now, &self->runnable_ts, Efault);
229
230 user_access_end();
231 return 0;
232
233 fail:
234 user_access_end();
235 return -EAGAIN;
236
237 Efault:
238 user_access_end();
239 return -EFAULT;
240 }
241
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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