Kernel
Threads by month
- ----- 2025 -----
- July
- June
- May
- April
- March
- February
- January
- ----- 2024 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2023 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2022 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2021 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2020 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2019 -----
- December
- 58 participants
- 19274 discussions
hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I9KUX7
--------------------------------
Fixed "WARNING: suspicious RCU usage" warning on ima_update_policy_flag.
Fixes: bccda6c35b52 ("ima: fix deadlock when traversing \"ima_default_rules\".")
Signed-off-by: GUO Zihua <guozihua(a)huawei.com>
---
security/integrity/ima/ima_policy.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index a9dbfc7143b3..43a5c4754a66 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -759,11 +759,13 @@ void ima_update_policy_flag(void)
struct ima_rule_entry *entry;
struct list_head *ima_rules_tmp;
+ rcu_read_lock();
ima_rules_tmp = rcu_dereference(ima_rules);
list_for_each_entry_rcu(entry, ima_rules_tmp, list) {
if (entry->action & IMA_DO_MASK)
ima_policy_flag |= entry->action;
}
+ rcu_read_unlock();
ima_appraise |= (build_ima_appraise | temp_ima_appraise);
if (!ima_appraise)
--
2.34.1
2
1
[PATCH OLK-6.6] media: dvb-usb: Fix unexpected infinite loop in dvb_usb_read_remote_control()
by Zheng Yejian 30 Apr '24
by Zheng Yejian 30 Apr '24
30 Apr '24
maillist inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I9KUFO
Reference: https://lore.kernel.org/all/20240412135256.1546051-1-zhengyejian1@huawei.co…
--------------------------------
Infinite log printing occurs during fuzz test:
rc rc1: DViCO FusionHDTV DVB-T USB (LGZ201) as ...
...
dvb-usb: schedule remote query interval to 100 msecs.
dvb-usb: DViCO FusionHDTV DVB-T USB (LGZ201) successfully initialized ...
dvb-usb: bulk message failed: -22 (1/0)
dvb-usb: bulk message failed: -22 (1/0)
dvb-usb: bulk message failed: -22 (1/0)
...
dvb-usb: bulk message failed: -22 (1/0)
Looking into the codes, there is a loop in dvb_usb_read_remote_control(),
that is in rc_core_dvb_usb_remote_init() create a work that will call
dvb_usb_read_remote_control(), and this work will reschedule itself at
'rc_interval' intervals to recursively call dvb_usb_read_remote_control(),
see following code snippet:
rc_core_dvb_usb_remote_init() {
...
INIT_DELAYED_WORK(&d->rc_query_work, dvb_usb_read_remote_control);
schedule_delayed_work(&d->rc_query_work,
msecs_to_jiffies(rc_interval));
...
}
dvb_usb_read_remote_control() {
...
err = d->props.rc.core.rc_query(d);
if (err)
err(...) // Did not return even if query failed
schedule_delayed_work(&d->rc_query_work,
msecs_to_jiffies(rc_interval));
}
When the infinite log printing occurs, the query callback
'd->props.rc.core.rc_query' is cxusb_rc_query(). And the log is due to
the failure of finding a valid 'generic_bulk_ctrl_endpoint'
in usb_bulk_msg(), see following code snippet:
cxusb_rc_query() {
cxusb_ctrl_msg() {
dvb_usb_generic_rw() {
ret = usb_bulk_msg(d->udev, usb_sndbulkpipe(d->udev,
d->props.generic_bulk_ctrl_endpoint),...);
if (ret)
err("bulk message failed: %d (%d/%d)",ret,wlen,actlen);
...
}
...
}
By analyzing the corresponding USB descriptor, it shows that the
bNumEndpoints is 0 in its interface descriptor, but
the 'generic_bulk_ctrl_endpoint' is 1, that means user don't configure
a valid endpoint for 'generic_bulk_ctrl_endpoint', therefore this
'invalid' USB device should be rejected before it calls into
dvb_usb_read_remote_control().
To fix it, iiuc, we can add endpoint check in dvb_usb_adapter_init().
Fixes: 786baecfe78f ("[media] dvb-usb: move it to drivers/media/usb/dvb-usb")
Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com>
---
drivers/media/usb/dvb-usb/dvb-usb-init.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-init.c b/drivers/media/usb/dvb-usb/dvb-usb-init.c
index fbf58012becd..48e7b9fb93dd 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-init.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-init.c
@@ -104,6 +104,14 @@ static int dvb_usb_adapter_init(struct dvb_usb_device *d, short *adapter_nrs)
* sometimes a timeout occurs, this helps
*/
if (d->props.generic_bulk_ctrl_endpoint != 0) {
+ ret = usb_pipe_type_check(d->udev, usb_sndbulkpipe(d->udev,
+ d->props.generic_bulk_ctrl_endpoint));
+ if (ret)
+ goto frontend_init_err;
+ ret = usb_pipe_type_check(d->udev, usb_rcvbulkpipe(d->udev,
+ d->props.generic_bulk_ctrl_endpoint));
+ if (ret)
+ goto frontend_init_err;
usb_clear_halt(d->udev, usb_sndbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
}
--
2.25.1
2
1
[PATCH OLK-5.10] media: dvb-usb: Fix unexpected infinite loop in dvb_usb_read_remote_control()
by Zheng Yejian 30 Apr '24
by Zheng Yejian 30 Apr '24
30 Apr '24
maillist inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I9KUFO
Reference: https://lore.kernel.org/all/20240412135256.1546051-1-zhengyejian1@huawei.co…
--------------------------------
Infinite log printing occurs during fuzz test:
rc rc1: DViCO FusionHDTV DVB-T USB (LGZ201) as ...
...
dvb-usb: schedule remote query interval to 100 msecs.
dvb-usb: DViCO FusionHDTV DVB-T USB (LGZ201) successfully initialized ...
dvb-usb: bulk message failed: -22 (1/0)
dvb-usb: bulk message failed: -22 (1/0)
dvb-usb: bulk message failed: -22 (1/0)
...
dvb-usb: bulk message failed: -22 (1/0)
Looking into the codes, there is a loop in dvb_usb_read_remote_control(),
that is in rc_core_dvb_usb_remote_init() create a work that will call
dvb_usb_read_remote_control(), and this work will reschedule itself at
'rc_interval' intervals to recursively call dvb_usb_read_remote_control(),
see following code snippet:
rc_core_dvb_usb_remote_init() {
...
INIT_DELAYED_WORK(&d->rc_query_work, dvb_usb_read_remote_control);
schedule_delayed_work(&d->rc_query_work,
msecs_to_jiffies(rc_interval));
...
}
dvb_usb_read_remote_control() {
...
err = d->props.rc.core.rc_query(d);
if (err)
err(...) // Did not return even if query failed
schedule_delayed_work(&d->rc_query_work,
msecs_to_jiffies(rc_interval));
}
When the infinite log printing occurs, the query callback
'd->props.rc.core.rc_query' is cxusb_rc_query(). And the log is due to
the failure of finding a valid 'generic_bulk_ctrl_endpoint'
in usb_bulk_msg(), see following code snippet:
cxusb_rc_query() {
cxusb_ctrl_msg() {
dvb_usb_generic_rw() {
ret = usb_bulk_msg(d->udev, usb_sndbulkpipe(d->udev,
d->props.generic_bulk_ctrl_endpoint),...);
if (ret)
err("bulk message failed: %d (%d/%d)",ret,wlen,actlen);
...
}
...
}
By analyzing the corresponding USB descriptor, it shows that the
bNumEndpoints is 0 in its interface descriptor, but
the 'generic_bulk_ctrl_endpoint' is 1, that means user don't configure
a valid endpoint for 'generic_bulk_ctrl_endpoint', therefore this
'invalid' USB device should be rejected before it calls into
dvb_usb_read_remote_control().
To fix it, iiuc, we can add endpoint check in dvb_usb_adapter_init().
Fixes: 786baecfe78f ("[media] dvb-usb: move it to drivers/media/usb/dvb-usb")
Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com>
---
drivers/media/usb/dvb-usb/dvb-usb-init.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-init.c b/drivers/media/usb/dvb-usb/dvb-usb-init.c
index 58eea8ab5477..d8098c110450 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-init.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-init.c
@@ -104,6 +104,14 @@ static int dvb_usb_adapter_init(struct dvb_usb_device *d, short *adapter_nrs)
* sometimes a timeout occurs, this helps
*/
if (d->props.generic_bulk_ctrl_endpoint != 0) {
+ ret = usb_pipe_type_check(d->udev, usb_sndbulkpipe(d->udev,
+ d->props.generic_bulk_ctrl_endpoint));
+ if (ret)
+ goto frontend_init_err;
+ ret = usb_pipe_type_check(d->udev, usb_rcvbulkpipe(d->udev,
+ d->props.generic_bulk_ctrl_endpoint));
+ if (ret)
+ goto frontend_init_err;
usb_clear_halt(d->udev, usb_sndbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
}
--
2.25.1
2
1
[PATCH OLK-6.6] media: dvb-usb: Fix unexpected infinite loop in dvb_usb_read_remote_control()
by Zheng Yejian 30 Apr '24
by Zheng Yejian 30 Apr '24
30 Apr '24
maillist inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I9KUFO
Reference: https://lore.kernel.org/all/20240412135256.1546051-1-zhengyejian1@huawei.co…
--------------------------------
Infinite log printing occurs during fuzz test:
rc rc1: DViCO FusionHDTV DVB-T USB (LGZ201) as ...
...
dvb-usb: schedule remote query interval to 100 msecs.
dvb-usb: DViCO FusionHDTV DVB-T USB (LGZ201) successfully initialized ...
dvb-usb: bulk message failed: -22 (1/0)
dvb-usb: bulk message failed: -22 (1/0)
dvb-usb: bulk message failed: -22 (1/0)
...
dvb-usb: bulk message failed: -22 (1/0)
Looking into the codes, there is a loop in dvb_usb_read_remote_control(),
that is in rc_core_dvb_usb_remote_init() create a work that will call
dvb_usb_read_remote_control(), and this work will reschedule itself at
'rc_interval' intervals to recursively call dvb_usb_read_remote_control(),
see following code snippet:
rc_core_dvb_usb_remote_init() {
...
INIT_DELAYED_WORK(&d->rc_query_work, dvb_usb_read_remote_control);
schedule_delayed_work(&d->rc_query_work,
msecs_to_jiffies(rc_interval));
...
}
dvb_usb_read_remote_control() {
...
err = d->props.rc.core.rc_query(d);
if (err)
err(...) // Did not return even if query failed
schedule_delayed_work(&d->rc_query_work,
msecs_to_jiffies(rc_interval));
}
When the infinite log printing occurs, the query callback
'd->props.rc.core.rc_query' is cxusb_rc_query(). And the log is due to
the failure of finding a valid 'generic_bulk_ctrl_endpoint'
in usb_bulk_msg(), see following code snippet:
cxusb_rc_query() {
cxusb_ctrl_msg() {
dvb_usb_generic_rw() {
ret = usb_bulk_msg(d->udev, usb_sndbulkpipe(d->udev,
d->props.generic_bulk_ctrl_endpoint),...);
if (ret)
err("bulk message failed: %d (%d/%d)",ret,wlen,actlen);
...
}
...
}
By analyzing the corresponding USB descriptor, it shows that the
bNumEndpoints is 0 in its interface descriptor, but
the 'generic_bulk_ctrl_endpoint' is 1, that means user don't configure
a valid endpoint for 'generic_bulk_ctrl_endpoint', therefore this
'invalid' USB device should be rejected before it calls into
dvb_usb_read_remote_control().
To fix it, iiuc, we can add endpoint check in dvb_usb_adapter_init().
Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com>
---
drivers/media/usb/dvb-usb/dvb-usb-init.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-init.c b/drivers/media/usb/dvb-usb/dvb-usb-init.c
index fbf58012becd..48e7b9fb93dd 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-init.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-init.c
@@ -104,6 +104,14 @@ static int dvb_usb_adapter_init(struct dvb_usb_device *d, short *adapter_nrs)
* sometimes a timeout occurs, this helps
*/
if (d->props.generic_bulk_ctrl_endpoint != 0) {
+ ret = usb_pipe_type_check(d->udev, usb_sndbulkpipe(d->udev,
+ d->props.generic_bulk_ctrl_endpoint));
+ if (ret)
+ goto frontend_init_err;
+ ret = usb_pipe_type_check(d->udev, usb_rcvbulkpipe(d->udev,
+ d->props.generic_bulk_ctrl_endpoint));
+ if (ret)
+ goto frontend_init_err;
usb_clear_halt(d->udev, usb_sndbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
}
--
2.25.1
2
1
[PATCH OLK-5.10] media: dvb-usb: Fix unexpected infinite loop in dvb_usb_read_remote_control()
by Zheng Yejian 30 Apr '24
by Zheng Yejian 30 Apr '24
30 Apr '24
maillist inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I9KUFO
Reference: https://lore.kernel.org/all/20240412135256.1546051-1-zhengyejian1@huawei.co…
--------------------------------
Infinite log printing occurs during fuzz test:
rc rc1: DViCO FusionHDTV DVB-T USB (LGZ201) as ...
...
dvb-usb: schedule remote query interval to 100 msecs.
dvb-usb: DViCO FusionHDTV DVB-T USB (LGZ201) successfully initialized ...
dvb-usb: bulk message failed: -22 (1/0)
dvb-usb: bulk message failed: -22 (1/0)
dvb-usb: bulk message failed: -22 (1/0)
...
dvb-usb: bulk message failed: -22 (1/0)
Looking into the codes, there is a loop in dvb_usb_read_remote_control(),
that is in rc_core_dvb_usb_remote_init() create a work that will call
dvb_usb_read_remote_control(), and this work will reschedule itself at
'rc_interval' intervals to recursively call dvb_usb_read_remote_control(),
see following code snippet:
rc_core_dvb_usb_remote_init() {
...
INIT_DELAYED_WORK(&d->rc_query_work, dvb_usb_read_remote_control);
schedule_delayed_work(&d->rc_query_work,
msecs_to_jiffies(rc_interval));
...
}
dvb_usb_read_remote_control() {
...
err = d->props.rc.core.rc_query(d);
if (err)
err(...) // Did not return even if query failed
schedule_delayed_work(&d->rc_query_work,
msecs_to_jiffies(rc_interval));
}
When the infinite log printing occurs, the query callback
'd->props.rc.core.rc_query' is cxusb_rc_query(). And the log is due to
the failure of finding a valid 'generic_bulk_ctrl_endpoint'
in usb_bulk_msg(), see following code snippet:
cxusb_rc_query() {
cxusb_ctrl_msg() {
dvb_usb_generic_rw() {
ret = usb_bulk_msg(d->udev, usb_sndbulkpipe(d->udev,
d->props.generic_bulk_ctrl_endpoint),...);
if (ret)
err("bulk message failed: %d (%d/%d)",ret,wlen,actlen);
...
}
...
}
By analyzing the corresponding USB descriptor, it shows that the
bNumEndpoints is 0 in its interface descriptor, but
the 'generic_bulk_ctrl_endpoint' is 1, that means user don't configure
a valid endpoint for 'generic_bulk_ctrl_endpoint', therefore this
'invalid' USB device should be rejected before it calls into
dvb_usb_read_remote_control().
To fix it, iiuc, we can add endpoint check in dvb_usb_adapter_init().
Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com>
---
drivers/media/usb/dvb-usb/dvb-usb-init.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-init.c b/drivers/media/usb/dvb-usb/dvb-usb-init.c
index 58eea8ab5477..d8098c110450 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-init.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-init.c
@@ -104,6 +104,14 @@ static int dvb_usb_adapter_init(struct dvb_usb_device *d, short *adapter_nrs)
* sometimes a timeout occurs, this helps
*/
if (d->props.generic_bulk_ctrl_endpoint != 0) {
+ ret = usb_pipe_type_check(d->udev, usb_sndbulkpipe(d->udev,
+ d->props.generic_bulk_ctrl_endpoint));
+ if (ret)
+ goto frontend_init_err;
+ ret = usb_pipe_type_check(d->udev, usb_rcvbulkpipe(d->udev,
+ d->props.generic_bulk_ctrl_endpoint));
+ if (ret)
+ goto frontend_init_err;
usb_clear_halt(d->udev, usb_sndbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
}
--
2.25.1
2
1
[openeuler:openEuler-1.0-LTS 15647/22256] kernel/sched/sparsemask.h:98:17: warning: array subscript 0 is outside array bounds of 'const struct sparsemask_chunk[0]'
by kernel test robot 30 Apr '24
by kernel test robot 30 Apr '24
30 Apr '24
tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS
head: 3c3550371ac3e9d3326c8263a6eb52d3bb0b43a8
commit: bccfa644c1b98b9d6fa102a39a10a1c52811fd0c [15647/22256] sched/fair: Steal work from an overloaded CPU when CPU goes idle
config: x86_64-randconfig-003-20240430 (https://download.01.org/0day-ci/archive/20240430/202404300955.dFOHBkZ8-lkp@…)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240430/202404300955.dFOHBkZ8-lkp@…)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp(a)intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202404300955.dFOHBkZ8-lkp@intel.com/
All warnings (new ones prefixed by >>):
kernel/sched/fair.c:2548:6: warning: no previous prototype for 'task_numa_work' [-Wmissing-prototypes]
2548 | void task_numa_work(struct callback_head *work)
| ^~~~~~~~~~~~~~
kernel/sched/fair.c:2694:6: warning: no previous prototype for 'task_tick_numa' [-Wmissing-prototypes]
2694 | void task_tick_numa(struct rq *rq, struct task_struct *curr)
| ^~~~~~~~~~~~~~
kernel/sched/fair.c:3658:6: warning: no previous prototype for 'sync_entity_load_avg' [-Wmissing-prototypes]
3658 | void sync_entity_load_avg(struct sched_entity *se)
| ^~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c:3671:6: warning: no previous prototype for 'remove_entity_load_avg' [-Wmissing-prototypes]
3671 | void remove_entity_load_avg(struct sched_entity *se)
| ^~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c: In function 'update_blocked_averages':
kernel/sched/fair.c:7626:14: warning: variable 'done' set but not used [-Wunused-but-set-variable]
7626 | bool done = true;
| ^~~~
In function 'group_faults_priv',
inlined from 'task_scan_max' at kernel/sched/fair.c:1175:27:
kernel/sched/fair.c:1307:37: warning: array subscript <unknown> is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
1307 | faults += ng->faults[task_faults_idx(NUMA_MEM, node, 1)];
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c: In function 'task_scan_max':
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
In function 'group_faults_shared',
inlined from 'task_scan_max' at kernel/sched/fair.c:1174:26:
kernel/sched/fair.c:1319:37: warning: array subscript <unknown> is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
1319 | faults += ng->faults[task_faults_idx(NUMA_MEM, node, 0)];
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c: In function 'task_scan_max':
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
In function 'group_faults_priv',
inlined from 'task_scan_start' at kernel/sched/fair.c:1151:27:
kernel/sched/fair.c:1307:37: warning: array subscript <unknown> is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
1307 | faults += ng->faults[task_faults_idx(NUMA_MEM, node, 1)];
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c: In function 'task_scan_start':
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
In function 'group_faults_shared',
inlined from 'task_scan_start' at kernel/sched/fair.c:1150:26:
kernel/sched/fair.c:1319:37: warning: array subscript <unknown> is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
1319 | faults += ng->faults[task_faults_idx(NUMA_MEM, node, 0)];
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c: In function 'task_scan_start':
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
In file included from include/linux/bitops.h:19,
from include/linux/kernel.h:11,
from arch/x86/include/asm/percpu.h:45,
from arch/x86/include/asm/current.h:6,
from include/linux/sched.h:12,
from kernel/sched/sched.h:5,
from kernel/sched/fair.c:23:
In function 'sparsemask_test_elem',
inlined from 'try_steal' at kernel/sched/fair.c:10007:8:
kernel/sched/sparsemask.h:53:10: warning: array subscript <unknown> is outside array bounds of 'const struct sparsemask_chunk[0]' [-Warray-bounds=]
53 | (&(mask)->chunks[SMASK_INDEX((mask), (elem))].word)
arch/x86/include/asm/bitops.h:341:37: note: in definition of macro 'test_bit'
341 | : variable_test_bit((nr), (addr)))
| ^~~~
kernel/sched/sparsemask.h:191:48: note: in expansion of macro 'SMASK_WORD'
191 | return test_bit(SMASK_BIT(mask, elem), SMASK_WORD(mask, elem));
| ^~~~~~~~~~
In file included from kernel/sched/fair.c:24:
kernel/sched/sparsemask.h: In function 'try_steal':
kernel/sched/sparsemask.h:45:33: note: while referencing 'chunks'
45 | struct sparsemask_chunk chunks[0]; /* embedded array of chunks */
| ^~~~~~
In function 'sparsemask_next',
inlined from 'try_steal' at kernel/sched/fair.c:10018:2:
kernel/sched/sparsemask.h:98:17: warning: array subscript <unknown> is outside array bounds of 'const struct sparsemask_chunk[0]' [-Warray-bounds=]
98 | chunk = &mask->chunks[_SMASK_INDEX(density, next)];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/sparsemask.h: In function 'try_steal':
kernel/sched/sparsemask.h:45:33: note: while referencing 'chunks'
45 | struct sparsemask_chunk chunks[0]; /* embedded array of chunks */
| ^~~~~~
In function 'sparsemask_next',
inlined from 'try_steal' at kernel/sched/fair.c:10018:2:
>> kernel/sched/sparsemask.h:98:17: warning: array subscript 0 is outside array bounds of 'const struct sparsemask_chunk[0]' [-Warray-bounds=]
98 | chunk = &mask->chunks[_SMASK_INDEX(density, next)];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/sparsemask.h: In function 'try_steal':
kernel/sched/sparsemask.h:45:33: note: while referencing 'chunks'
45 | struct sparsemask_chunk chunks[0]; /* embedded array of chunks */
| ^~~~~~
In function 'sparsemask_next',
inlined from 'try_steal' at kernel/sched/fair.c:10018:2:
kernel/sched/sparsemask.h:98:30: warning: array subscript <unknown> is outside array bounds of 'const struct sparsemask_chunk[0]' [-Warray-bounds=]
98 | chunk = &mask->chunks[_SMASK_INDEX(density, next)];
| ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/sparsemask.h: In function 'try_steal':
kernel/sched/sparsemask.h:45:33: note: while referencing 'chunks'
45 | struct sparsemask_chunk chunks[0]; /* embedded array of chunks */
| ^~~~~~
kernel/sched/fair.c: In function 'task_numa_group':
kernel/sched/fair.c:2335:36: warning: array subscript i is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
2335 | grp->faults[i] = p->numa_faults[i];
| ~~~~~~~~~~~^~~
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
kernel/sched/fair.c:2393:31: warning: array subscript i is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
2393 | my_grp->faults[i] -= p->numa_faults[i];
| ~~~~~~~~~~~~~~^~~
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
kernel/sched/fair.c:2393:31: warning: array subscript i is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
2393 | my_grp->faults[i] -= p->numa_faults[i];
| ~~~~~~~~~~~~~~^~~
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
kernel/sched/fair.c:2394:28: warning: array subscript i is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
2394 | grp->faults[i] += p->numa_faults[i];
| ~~~~~~~~~~~^~~
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
kernel/sched/fair.c:2394:28: warning: array subscript i is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
2394 | grp->faults[i] += p->numa_faults[i];
| ~~~~~~~~~~~^~~
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
In function 'sparsemask_clear_elem',
inlined from 'overload_clear.part.0' at kernel/sched/fair.c:3834:3:
kernel/sched/sparsemask.h:53:10: warning: array subscript <unknown> is outside array bounds of 'struct sparsemask_chunk[0]' [-Warray-bounds=]
53 | (&(mask)->chunks[SMASK_INDEX((mask), (elem))].word)
| ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/sparsemask.h:186:41: note: in expansion of macro 'SMASK_WORD'
186 | clear_bit(SMASK_BIT(dst, elem), SMASK_WORD(dst, elem));
| ^~~~~~~~~~
kernel/sched/sparsemask.h: In function 'overload_clear.part.0':
kernel/sched/sparsemask.h:45:33: note: while referencing 'chunks'
45 | struct sparsemask_chunk chunks[0]; /* embedded array of chunks */
| ^~~~~~
In function 'group_faults',
inlined from 'score_nearby_nodes.part.0' at kernel/sched/fair.c:1381:13:
kernel/sched/fair.c:1291:26: warning: array subscript <unknown> is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
1291 | return ng->faults[task_faults_idx(NUMA_MEM, nid, 0)] +
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c: In function 'score_nearby_nodes.part.0':
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
In function 'group_faults',
inlined from 'score_nearby_nodes.part.0' at kernel/sched/fair.c:1381:13:
kernel/sched/fair.c:1292:27: warning: array subscript <unknown> is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
1292 | ng->faults[task_faults_idx(NUMA_MEM, nid, 1)];
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c: In function 'score_nearby_nodes.part.0':
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
In function 'group_faults',
inlined from 'preferred_group_nid' at kernel/sched/fair.c:2161:16:
kernel/sched/fair.c:1291:26: warning: array subscript <unknown> is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
1291 | return ng->faults[task_faults_idx(NUMA_MEM, nid, 0)] +
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c: In function 'preferred_group_nid':
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
In function 'group_faults',
inlined from 'preferred_group_nid' at kernel/sched/fair.c:2161:16:
kernel/sched/fair.c:1292:27: warning: array subscript <unknown> is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
1292 | ng->faults[task_faults_idx(NUMA_MEM, nid, 1)];
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c: In function 'preferred_group_nid':
kernel/sched/fair.c:1083:23: note: while referencing 'faults'
1083 | unsigned long faults[0];
| ^~~~~~
In function 'group_faults',
inlined from 'group_weight' at kernel/sched/fair.c:1441:11,
inlined from 'preferred_group_nid' at kernel/sched/fair.c:2125:12:
kernel/sched/fair.c:1291:26: warning: array subscript <unknown> is outside array bounds of 'long unsigned int[0]' [-Warray-bounds=]
1291 | return ng->faults[task_faults_idx(NUMA_MEM, nid, 0)] +
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +98 kernel/sched/sparsemask.h
6866be5a3aff4b Steve Sistare 2021-04-14 47
6866be5a3aff4b Steve Sistare 2021-04-14 48 #define _SMASK_INDEX(density, elem) ((elem) >> (density))
6866be5a3aff4b Steve Sistare 2021-04-14 49 #define _SMASK_BIT(density, elem) ((elem) & ((1U << (density)) - 1U))
6866be5a3aff4b Steve Sistare 2021-04-14 50 #define SMASK_INDEX(mask, elem) _SMASK_INDEX((mask)->density, elem)
6866be5a3aff4b Steve Sistare 2021-04-14 51 #define SMASK_BIT(mask, elem) _SMASK_BIT((mask)->density, elem)
6866be5a3aff4b Steve Sistare 2021-04-14 52 #define SMASK_WORD(mask, elem) \
6866be5a3aff4b Steve Sistare 2021-04-14 53 (&(mask)->chunks[SMASK_INDEX((mask), (elem))].word)
6866be5a3aff4b Steve Sistare 2021-04-14 54
6866be5a3aff4b Steve Sistare 2021-04-14 55 /*
6866be5a3aff4b Steve Sistare 2021-04-14 56 * sparsemask_next() - Return the next one bit in a bitmap, starting at a
6866be5a3aff4b Steve Sistare 2021-04-14 57 * specified position and wrapping from the last bit to the first, up to but
6866be5a3aff4b Steve Sistare 2021-04-14 58 * not including a specified origin. This is a helper, so do not call it
6866be5a3aff4b Steve Sistare 2021-04-14 59 * directly.
6866be5a3aff4b Steve Sistare 2021-04-14 60 *
6866be5a3aff4b Steve Sistare 2021-04-14 61 * @mask: Bitmap to search.
6866be5a3aff4b Steve Sistare 2021-04-14 62 * @origin: Origin.
6866be5a3aff4b Steve Sistare 2021-04-14 63 * @prev: Previous bit. Start search after this bit number.
6866be5a3aff4b Steve Sistare 2021-04-14 64 * If -1, start search at @origin.
6866be5a3aff4b Steve Sistare 2021-04-14 65 *
6866be5a3aff4b Steve Sistare 2021-04-14 66 * Return: the bit number, else mask->nelems if no bits are set in the range.
6866be5a3aff4b Steve Sistare 2021-04-14 67 */
6866be5a3aff4b Steve Sistare 2021-04-14 68 static inline int
6866be5a3aff4b Steve Sistare 2021-04-14 69 sparsemask_next(const struct sparsemask *mask, int origin, int prev)
6866be5a3aff4b Steve Sistare 2021-04-14 70 {
6866be5a3aff4b Steve Sistare 2021-04-14 71 int density = mask->density;
6866be5a3aff4b Steve Sistare 2021-04-14 72 int bits_per_word = 1U << density;
6866be5a3aff4b Steve Sistare 2021-04-14 73 const struct sparsemask_chunk *chunk;
6866be5a3aff4b Steve Sistare 2021-04-14 74 int nelems = mask->nelems;
6866be5a3aff4b Steve Sistare 2021-04-14 75 int next, bit, nbits;
6866be5a3aff4b Steve Sistare 2021-04-14 76 unsigned long word;
6866be5a3aff4b Steve Sistare 2021-04-14 77
6866be5a3aff4b Steve Sistare 2021-04-14 78 /* Calculate number of bits to be searched. */
6866be5a3aff4b Steve Sistare 2021-04-14 79 if (prev == -1) {
6866be5a3aff4b Steve Sistare 2021-04-14 80 nbits = nelems;
6866be5a3aff4b Steve Sistare 2021-04-14 81 next = origin;
6866be5a3aff4b Steve Sistare 2021-04-14 82 } else if (prev < origin) {
6866be5a3aff4b Steve Sistare 2021-04-14 83 nbits = origin - prev;
6866be5a3aff4b Steve Sistare 2021-04-14 84 next = prev + 1;
6866be5a3aff4b Steve Sistare 2021-04-14 85 } else {
6866be5a3aff4b Steve Sistare 2021-04-14 86 nbits = nelems - prev + origin - 1;
6866be5a3aff4b Steve Sistare 2021-04-14 87 next = prev + 1;
6866be5a3aff4b Steve Sistare 2021-04-14 88 }
6866be5a3aff4b Steve Sistare 2021-04-14 89
6866be5a3aff4b Steve Sistare 2021-04-14 90 if (unlikely(next >= nelems))
6866be5a3aff4b Steve Sistare 2021-04-14 91 return nelems;
6866be5a3aff4b Steve Sistare 2021-04-14 92
6866be5a3aff4b Steve Sistare 2021-04-14 93 /*
6866be5a3aff4b Steve Sistare 2021-04-14 94 * Fetch and adjust first word. Clear word bits below @next, and round
6866be5a3aff4b Steve Sistare 2021-04-14 95 * @next down to @bits_per_word boundary because later ffs will add
6866be5a3aff4b Steve Sistare 2021-04-14 96 * those bits back.
6866be5a3aff4b Steve Sistare 2021-04-14 97 */
6866be5a3aff4b Steve Sistare 2021-04-14 @98 chunk = &mask->chunks[_SMASK_INDEX(density, next)];
6866be5a3aff4b Steve Sistare 2021-04-14 99 bit = _SMASK_BIT(density, next);
6866be5a3aff4b Steve Sistare 2021-04-14 100 word = chunk->word & (~0UL << bit);
6866be5a3aff4b Steve Sistare 2021-04-14 101 next -= bit;
6866be5a3aff4b Steve Sistare 2021-04-14 102 nbits += bit;
6866be5a3aff4b Steve Sistare 2021-04-14 103
6866be5a3aff4b Steve Sistare 2021-04-14 104 while (!word) {
6866be5a3aff4b Steve Sistare 2021-04-14 105 next += bits_per_word;
6866be5a3aff4b Steve Sistare 2021-04-14 106 nbits -= bits_per_word;
6866be5a3aff4b Steve Sistare 2021-04-14 107 if (nbits <= 0)
6866be5a3aff4b Steve Sistare 2021-04-14 108 return nelems;
6866be5a3aff4b Steve Sistare 2021-04-14 109
6866be5a3aff4b Steve Sistare 2021-04-14 110 if (next >= nelems) {
6866be5a3aff4b Steve Sistare 2021-04-14 111 chunk = mask->chunks;
6866be5a3aff4b Steve Sistare 2021-04-14 112 nbits -= (next - nelems);
6866be5a3aff4b Steve Sistare 2021-04-14 113 next = 0;
6866be5a3aff4b Steve Sistare 2021-04-14 114 } else {
6866be5a3aff4b Steve Sistare 2021-04-14 115 chunk++;
6866be5a3aff4b Steve Sistare 2021-04-14 116 }
6866be5a3aff4b Steve Sistare 2021-04-14 117 word = chunk->word;
6866be5a3aff4b Steve Sistare 2021-04-14 118 }
6866be5a3aff4b Steve Sistare 2021-04-14 119
6866be5a3aff4b Steve Sistare 2021-04-14 120 next += __ffs(word);
6866be5a3aff4b Steve Sistare 2021-04-14 121 if (next >= origin && prev != -1)
6866be5a3aff4b Steve Sistare 2021-04-14 122 return nelems;
6866be5a3aff4b Steve Sistare 2021-04-14 123 return next;
6866be5a3aff4b Steve Sistare 2021-04-14 124 }
6866be5a3aff4b Steve Sistare 2021-04-14 125
:::::: The code at line 98 was first introduced by commit
:::::: 6866be5a3aff4bbd949059927d8f8790be53e3dd sched: Provide sparsemask, a reduced contention bitmap
:::::: TO: Steve Sistare <steven.sistare(a)oracle.com>
:::::: CC: Cheng Jian <cj.chengjian(a)huawei.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
1
0
[openeuler:OLK-5.10] BUILD SUCCESS 25d9fa98bac87f2cbc5868182135639be8234ad2
by kernel test robot 30 Apr '24
by kernel test robot 30 Apr '24
30 Apr '24
tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10
branch HEAD: 25d9fa98bac87f2cbc5868182135639be8234ad2 !6755 binder: check offset alignment in binder_get_object()
Warning ids grouped by kconfigs:
clang_recent_errors
|-- arm64-allyesconfig
| |-- Documentation-devicetree-bindings-arm-cpu.yaml:properties:capacity-dmips-mhz:ref-should-not-be-valid-under-const:ref
| |-- Documentation-devicetree-bindings-arm-cpu.yaml:title:ARM-CPUs-bindings-should-not-be-valid-under-pattern:(-Bb-inding-Ss-chema)
| |-- Documentation-devicetree-bindings-arm-cpus.yaml:examples:cpus-arm-pbha-performance-only-bits-arm-pbha-no-aliases-bits-ncpu-device_type-cpu-compatible-arm-cortex-a57-...-n-is-not-of-type-array
| |-- Documentation-devicetree-bindings-arm-cpus.yaml:maintainers-is-a-required-property
| |-- description:Display-controller-reference-clock-source-is-not-of-type-object-boolean
| |-- description:Display-controller-reference-clock-source-is-too-short
| |-- description:Offset-and-length-of-the-memory-mapped-registers-is-too-short
| |-- items-is-not-one-of-type-description-dependencies-dependentRequired-dependentSchemas-properties-patternProperties-additionalProperties-unevaluatedProperties-deprecated-required-not-allOf-anyOf-oneOf-r
| `-- minItems-is-not-one-of-type-description-dependencies-dependentRequired-dependentSchemas-properties-patternProperties-additionalProperties-unevaluatedProperties-deprecated-required-not-allOf-anyOf-oneO
`-- x86_64-allnoconfig
`-- drivers-net-ethernet-mucse-rnpm-rnpm_common.h:linux-version.h-not-needed.
elapsed time: 741m
configs tested: 35
configs skipped: 150
The following configs have been built successfully.
More configs may be tested in the coming days.
tested configs:
arm64 allmodconfig clang
arm64 allnoconfig gcc
arm64 defconfig gcc
arm64 randconfig-001-20240429 clang
arm64 randconfig-002-20240429 gcc
arm64 randconfig-003-20240429 clang
arm64 randconfig-004-20240429 clang
x86_64 allnoconfig clang
x86_64 allyesconfig clang
x86_64 buildonly-randconfig-001-20240430 gcc
x86_64 buildonly-randconfig-002-20240430 clang
x86_64 buildonly-randconfig-003-20240430 clang
x86_64 buildonly-randconfig-004-20240430 clang
x86_64 buildonly-randconfig-005-20240430 clang
x86_64 buildonly-randconfig-006-20240430 clang
x86_64 defconfig gcc
x86_64 randconfig-001-20240430 clang
x86_64 randconfig-002-20240430 clang
x86_64 randconfig-003-20240430 gcc
x86_64 randconfig-004-20240430 gcc
x86_64 randconfig-005-20240430 gcc
x86_64 randconfig-006-20240430 clang
x86_64 randconfig-011-20240430 clang
x86_64 randconfig-012-20240430 clang
x86_64 randconfig-013-20240430 gcc
x86_64 randconfig-014-20240430 clang
x86_64 randconfig-015-20240430 clang
x86_64 randconfig-016-20240430 clang
x86_64 randconfig-071-20240430 clang
x86_64 randconfig-072-20240430 clang
x86_64 randconfig-073-20240430 clang
x86_64 randconfig-074-20240430 clang
x86_64 randconfig-075-20240430 gcc
x86_64 randconfig-076-20240430 clang
x86_64 rhel-8.3-rust clang
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
1
0
[openeuler:openEuler-1.0-LTS] BUILD SUCCESS 3c3550371ac3e9d3326c8263a6eb52d3bb0b43a8
by kernel test robot 30 Apr '24
by kernel test robot 30 Apr '24
30 Apr '24
tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS
branch HEAD: 3c3550371ac3e9d3326c8263a6eb52d3bb0b43a8 !6745 PCI/IOV: Improve performance of creating VFs concurrently
Unverified Warning (likely false positive, please contact us if interested):
drivers/block/loop.c:1338 loop_set_status() warn: inconsistent returns '&loop_ctl_mutex'.
Warning ids grouped by kconfigs:
gcc_recent_errors
|-- x86_64-defconfig
| |-- include-linux-list.h:warning:array-subscript-pfo_ret__-is-outside-array-bounds-of-struct-plist_node
| |-- include-linux-plist.h:warning:array-subscript-pfo_ret__-is-outside-array-bounds-of-struct-plist_node
| `-- mm-swapfile.c:warning:array-subscript-pfo_ret__-is-outside-array-bounds-of-struct-plist_node
|-- x86_64-randconfig-003-20240430
| |-- include-linux-compiler.h:warning:array-subscript-index-is-outside-array-bounds-of-u32-aka-unsigned-int
| `-- include-linux-compiler.h:warning:array-subscript-unknown-is-outside-array-bounds-of-const-u32-aka-const-unsigned-int
|-- x86_64-randconfig-004-20240430
| |-- include-linux-compiler.h:warning:array-subscript-index-is-outside-array-bounds-of-u32-aka-unsigned-int
| `-- include-linux-compiler.h:warning:array-subscript-unknown-is-outside-array-bounds-of-const-u32-aka-const-unsigned-int
|-- x86_64-randconfig-005-20240430
| |-- include-linux-spinlock.h:warning:array-subscript-is-outside-array-bounds-of-struct-small_page_pool
| |-- mm-hugetlb.c:warning:array-subscript-is-outside-array-bounds-of-struct-small_page_pool
| `-- mm-memcontrol.c:warning:array-subscript-is-outside-array-bounds-of-struct-small_page_pool
|-- x86_64-randconfig-122-20240430
| |-- drivers-pci-controller-hisi-pcie-customer-hisi_pcie_cae.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-to-got-void
| |-- drivers-pci-rom.c:sparse:sparse:incorrect-type-in-return-expression-(different-address-spaces)-expected-void-noderef-asn-got-void
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-long-long-noderef-usertype-asn-off_in-got-long-long-usertype-assigned-poff_in
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-long-long-noderef-usertype-asn-off_out-got-long-long-usertype-assigned-poff_out
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-assignment-(different-address-spaces)-expected-struct-file-assigned-file-got-struct-file-noderef-asn
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-return-expression-(different-address-spaces)-expected-void-noderef-asn-got-struct-io_buffer-assigned-kbuf
| |-- kernel-cgroup-cgroup.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-struct-cgroup_subsys_state-css-got-struct-cgroup_subsys_state-noderef-asn
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-got-int-noderef-pmu_disable_count
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-got-struct-perf_cpu_context-noderef-pmu_cpu_context
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-initializer-(different-address-spaces)-expected-void-const-noderef-asn-got-int
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-initializer-(different-address-spaces)-expected-void-const-noderef-asn-got-struct-perf_cpu_context
| `-- net-ipv4-arp.c:sparse:sparse:incompatible-types-in-comparison-expression-(different-type-sizes):
`-- x86_64-randconfig-123-20240430
|-- drivers-pci-controller-hisi-pcie-customer-hisi_pcie_cae.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-to-got-void
|-- drivers-pci-rom.c:sparse:sparse:incorrect-type-in-return-expression-(different-address-spaces)-expected-void-noderef-asn-got-void
|-- fs-io_uring.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-long-long-noderef-usertype-asn-off_in-got-long-long-usertype-assigned-poff_in
|-- fs-io_uring.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-long-long-noderef-usertype-asn-off_out-got-long-long-usertype-assigned-poff_out
|-- fs-io_uring.c:sparse:sparse:incorrect-type-in-assignment-(different-address-spaces)-expected-struct-file-assigned-file-got-struct-file-noderef-asn
|-- fs-io_uring.c:sparse:sparse:incorrect-type-in-return-expression-(different-address-spaces)-expected-void-noderef-asn-got-struct-io_buffer-assigned-kbuf
|-- kernel-cgroup-cgroup.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-struct-cgroup_subsys_state-css-got-struct-cgroup_subsys_state-noderef-asn
|-- kernel-events-core.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-got-int-noderef-pmu_disable_count
|-- kernel-events-core.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-got-struct-perf_cpu_context-noderef-pmu_cpu_context
|-- kernel-events-core.c:sparse:sparse:incorrect-type-in-initializer-(different-address-spaces)-expected-void-const-noderef-asn-got-int
|-- kernel-events-core.c:sparse:sparse:incorrect-type-in-initializer-(different-address-spaces)-expected-void-const-noderef-asn-got-struct-perf_cpu_context
`-- net-ipv4-arp.c:sparse:sparse:incompatible-types-in-comparison-expression-(different-type-sizes):
clang_recent_errors
|-- x86_64-allyesconfig
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-buildonly-randconfig-003-20240430
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-buildonly-randconfig-005-20240430
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-randconfig-001-20240430
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-randconfig-002-20240430
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-randconfig-006-20240430
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-randconfig-011-20240430
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-randconfig-012-20240430
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-randconfig-014-20240430
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-randconfig-101-20240430
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-randconfig-121-20240430
| |-- drivers-md-bcache-request.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-const-noderef-asn-from-got-struct-set_bcache_status
| |-- drivers-md-bcache-request.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-to-got-struct-get_bcache_status
| |-- drivers-pci-controller-hisi-pcie-customer-hisi_pcie_cae.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-to-got-void
| |-- drivers-pci-rom.c:sparse:sparse:incorrect-type-in-return-expression-(different-address-spaces)-expected-void-noderef-asn-got-void
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-long-long-noderef-usertype-asn-off_in-got-long-long-usertype-assigned-poff_in
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-long-long-noderef-usertype-asn-off_out-got-long-long-usertype-assigned-poff_out
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-assignment-(different-address-spaces)-expected-struct-file-assigned-file-got-struct-file-noderef-asn
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-return-expression-(different-address-spaces)-expected-void-noderef-asn-got-struct-io_buffer-assigned-kbuf
| |-- kernel-cgroup-cgroup.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-struct-cgroup_subsys_state-css-got-struct-cgroup_subsys_state-noderef-asn
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-got-int-noderef-pmu_disable_count
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-got-struct-perf_cpu_context-noderef-pmu_cpu_context
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-initializer-(different-address-spaces)-expected-void-const-noderef-asn-got-int
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-initializer-(different-address-spaces)-expected-void-const-noderef-asn-got-struct-perf_cpu_context
| |-- net-ipv4-arp.c:sparse:sparse:incompatible-types-in-comparison-expression-(different-type-sizes):
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-randconfig-161-20240430
| |-- drivers-block-loop.c-loop_set_status()-warn:inconsistent-returns-loop_ctl_mutex-.
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
|-- x86_64-randconfig-r123-20240430
| |-- drivers-pci-controller-hisi-pcie-customer-hisi_pcie_cae.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-to-got-void
| |-- drivers-pci-rom.c:sparse:sparse:incorrect-type-in-return-expression-(different-address-spaces)-expected-void-noderef-asn-got-void
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-long-long-noderef-usertype-asn-off_in-got-long-long-usertype-assigned-poff_in
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-long-long-noderef-usertype-asn-off_out-got-long-long-usertype-assigned-poff_out
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-assignment-(different-address-spaces)-expected-struct-file-assigned-file-got-struct-file-noderef-asn
| |-- fs-io_uring.c:sparse:sparse:incorrect-type-in-return-expression-(different-address-spaces)-expected-void-noderef-asn-got-struct-io_buffer-assigned-kbuf
| |-- fs-proc-etmem_scan.c:sparse:sparse:incorrect-type-in-assignment-(different-address-spaces)-expected-void-noderef-asn-buf-got-void-buf
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-got-int-noderef-pmu_disable_count
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-noderef-asn-got-struct-perf_cpu_context-noderef-pmu_cpu_context
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-initializer-(different-address-spaces)-expected-void-const-noderef-asn-got-int
| |-- kernel-events-core.c:sparse:sparse:incorrect-type-in-initializer-(different-address-spaces)-expected-void-const-noderef-asn-got-struct-perf_cpu_context
| |-- net-ipv4-arp.c:sparse:sparse:incompatible-types-in-comparison-expression-(different-type-sizes):
| `-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
`-- x86_64-rhel-8.3-rust
`-- net-ipv4-arp.c:warning:comparison-of-distinct-pointer-types-(-typeof-(dev-addr_len)-(aka-unsigned-char-)-and-typeof-(sizeof-(r-arp_ha.sa_data))-(aka-unsigned-long-))
elapsed time: 739m
configs tested: 26
configs skipped: 148
The following configs have been built successfully.
More configs may be tested in the coming days.
tested configs:
arm64 allmodconfig gcc
arm64 allnoconfig gcc
arm64 defconfig gcc
arm64 randconfig-001-20240429 gcc
arm64 randconfig-002-20240429 gcc
arm64 randconfig-003-20240429 gcc
x86_64 allnoconfig clang
x86_64 allyesconfig clang
x86_64 buildonly-randconfig-001-20240430 gcc
x86_64 buildonly-randconfig-002-20240430 clang
x86_64 buildonly-randconfig-003-20240430 clang
x86_64 buildonly-randconfig-004-20240430 clang
x86_64 buildonly-randconfig-005-20240430 clang
x86_64 buildonly-randconfig-006-20240430 clang
x86_64 defconfig gcc
x86_64 randconfig-001-20240430 clang
x86_64 randconfig-002-20240430 clang
x86_64 randconfig-003-20240430 gcc
x86_64 randconfig-004-20240430 gcc
x86_64 randconfig-005-20240430 gcc
x86_64 randconfig-006-20240430 clang
x86_64 randconfig-011-20240430 clang
x86_64 randconfig-012-20240430 clang
x86_64 randconfig-013-20240430 gcc
x86_64 randconfig-014-20240430 clang
x86_64 rhel-8.3-rust clang
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
1
0
[openeuler:OLK-6.6 2552/7643] kernel/sched/fair.c:314:15: error: use of undeclared identifier 'hundred_thousand'
by kernel test robot 30 Apr '24
by kernel test robot 30 Apr '24
30 Apr '24
tree: https://gitee.com/openeuler/kernel.git OLK-6.6
head: 3fd472966bcc21f40dc20bb47c7ad18392fbec05
commit: f7c232d3e20a69b46e53da221ba3cbac0fa68a0d [2552/7643] smart_grid: introduce smart_grid_strategy_ctrl sysctl
config: x86_64-randconfig-r123-20240430 (https://download.01.org/0day-ci/archive/20240430/202404300812.EAGGykdR-lkp@…)
compiler: clang version 18.1.4 (https://github.com/llvm/llvm-project e6c3289804a67ea0bb6a86fadbe454dd93b8d855)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240430/202404300812.EAGGykdR-lkp@…)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp(a)intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202404300812.EAGGykdR-lkp@intel.com/
All errors (new ones prefixed by >>):
>> kernel/sched/fair.c:314:15: error: use of undeclared identifier 'hundred_thousand'
314 | .extra2 = &hundred_thousand,
| ^
>> kernel/sched/fair.c:322:2: error: invalid application of 'sizeof' to an incomplete type 'struct ctl_table[]'
322 | register_sysctl_init("kernel", sched_fair_sysctls);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/sysctl.h:241:46: note: expanded from macro 'register_sysctl_init'
241 | __register_sysctl_init(path, table, #table, ARRAY_SIZE(table))
| ^~~~~~~~~~~~~~~~~
include/linux/kernel.h:57:32: note: expanded from macro 'ARRAY_SIZE'
57 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
| ^~~~~
kernel/sched/fair.c:7104:6: warning: no previous prototype for function 'free_affinity_domains' [-Wmissing-prototypes]
7104 | void free_affinity_domains(struct affinity_domain *ad)
| ^
kernel/sched/fair.c:7104:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
7104 | void free_affinity_domains(struct affinity_domain *ad)
| ^
| static
1 warning and 2 errors generated.
vim +/hundred_thousand +314 kernel/sched/fair.c
216
217 #ifdef CONFIG_SYSCTL
218 static struct ctl_table sched_fair_sysctls[] = {
219 {
220 .procname = "sched_child_runs_first",
221 .data = &sysctl_sched_child_runs_first,
222 .maxlen = sizeof(unsigned int),
223 .mode = 0644,
224 .proc_handler = proc_dointvec,
225 },
226 #ifdef CONFIG_CFS_BANDWIDTH
227 {
228 .procname = "sched_cfs_bandwidth_slice_us",
229 .data = &sysctl_sched_cfs_bandwidth_slice,
230 .maxlen = sizeof(unsigned int),
231 .mode = 0644,
232 .proc_handler = proc_dointvec_minmax,
233 .extra1 = SYSCTL_ONE,
234 },
235 #endif
236 #ifdef CONFIG_NUMA_BALANCING
237 {
238 .procname = "numa_balancing_promote_rate_limit_MBps",
239 .data = &sysctl_numa_balancing_promote_rate_limit,
240 .maxlen = sizeof(unsigned int),
241 .mode = 0644,
242 .proc_handler = proc_dointvec_minmax,
243 .extra1 = SYSCTL_ZERO,
244 },
245 #endif /* CONFIG_NUMA_BALANCING */
246 #ifdef CONFIG_QOS_SCHED
247 {
248 .procname = "qos_overload_detect_period_ms",
249 .data = &sysctl_overload_detect_period,
250 .maxlen = sizeof(unsigned int),
251 .mode = 0644,
252 .proc_handler = proc_dointvec_minmax,
253 .extra1 = SYSCTL_ONE_HUNDRED,
254 .extra2 = &hundred_thousand,
255 },
256 {
257 .procname = "qos_offline_wait_interval_ms",
258 .data = &sysctl_offline_wait_interval,
259 .maxlen = sizeof(unsigned int),
260 .mode = 0644,
261 .proc_handler = proc_dointvec_minmax,
262 .extra1 = SYSCTL_ONE_HUNDRED,
263 .extra2 = &one_thousand,
264 },
265 #endif
266 #ifdef CONFIG_QOS_SCHED_DYNAMIC_AFFINITY
267 {
268 .procname = "sched_util_low_pct",
269 .data = &sysctl_sched_util_low_pct,
270 .maxlen = sizeof(sysctl_sched_util_low_pct),
271 .mode = 0644,
272 .proc_handler = proc_dointvec_minmax,
273 .extra1 = SYSCTL_ZERO,
274 .extra2 = SYSCTL_ONE_HUNDRED,
275 },
276 #endif
277 #ifdef CONFIG_QOS_SCHED_PRIO_LB
278 {
279 .procname = "sched_prio_load_balance_enabled",
280 .data = &sysctl_sched_prio_load_balance_enabled,
281 .maxlen = sizeof(unsigned int),
282 .mode = 0644,
283 .proc_handler = proc_dointvec_minmax,
284 .extra1 = SYSCTL_ZERO,
285 .extra2 = SYSCTL_ONE,
286 },
287 #endif
288 #ifdef CONFIG_QOS_SCHED_MULTILEVEL
289 {
290 .procname = "qos_level_weights",
291 .data = &sysctl_qos_level_weights,
292 .maxlen = 5*sizeof(int),
293 .mode = 0644,
294 .proc_handler = proc_dointvec,
295 },
296 #endif
297 #ifdef CONFIG_QOS_SCHED_SMART_GRID
298 {
299 .procname = "smart_grid_strategy_ctrl",
300 .data = &sysctl_smart_grid_strategy_ctrl,
301 .maxlen = sizeof(unsigned int),
302 .mode = 0644,
303 .proc_handler = proc_dointvec_minmax,
304 .extra1 = SYSCTL_ZERO,
305 .extra2 = SYSCTL_ONE,
306 },
307 {
308 .procname = "affinity_adjust_delay_ms",
309 .data = &sysctl_affinity_adjust_delay_ms,
310 .maxlen = sizeof(unsigned int),
311 .mode = 0644,
312 .proc_handler = proc_dointvec_minmax,
313 .extra1 = SYSCTL_ZERO,
> 314 .extra2 = &hundred_thousand,
315 },
316 #endif
317 {}
318 };
319
320 static int __init sched_fair_sysctl_init(void)
321 {
> 322 register_sysctl_init("kernel", sched_fair_sysctls);
323 return 0;
324 }
325 late_initcall(sched_fair_sysctl_init);
326 #endif
327
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
1
0
[openeuler:openEuler-1.0-LTS 20217/22256] mm/hugetlb.c:3967:41: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]'
by kernel test robot 30 Apr '24
by kernel test robot 30 Apr '24
30 Apr '24
tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS
head: 3c3550371ac3e9d3326c8263a6eb52d3bb0b43a8
commit: 0bc0d0d57edacd59ebe38d05ad9c4b2bc185aa51 [20217/22256] dhugetlb: backport dynamic hugetlb feature
config: x86_64-randconfig-005-20240430 (https://download.01.org/0day-ci/archive/20240430/202404300835.ONBQ5gRx-lkp@…)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240430/202404300835.ONBQ5gRx-lkp@…)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp(a)intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202404300835.ONBQ5gRx-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from arch/x86/include/asm/bug.h:83,
from include/linux/bug.h:5,
from include/linux/mmdebug.h:5,
from include/linux/mm.h:10,
from mm/hugetlb.c:7:
mm/hugetlb.c: In function 'dhugetlb_acct_memory':
mm/hugetlb.c:4172:57: warning: comparison of unsigned expression in '< 0' is always false [-Wtype-limits]
4172 | WARN_ON(hpool->mmap_reserved_1G < 0);
| ^
include/asm-generic/bug.h:124:32: note: in definition of macro 'WARN_ON'
124 | int __ret_warn_on = !!(condition); \
| ^~~~~~~~~
mm/hugetlb.c:4188:57: warning: comparison of unsigned expression in '< 0' is always false [-Wtype-limits]
4188 | WARN_ON(hpool->mmap_reserved_2M < 0);
| ^
include/asm-generic/bug.h:124:32: note: in definition of macro 'WARN_ON'
124 | int __ret_warn_on = !!(condition); \
| ^~~~~~~~~
In file included from mm/hugetlb.c:14:
include/linux/mempolicy.h: At top level:
include/linux/mempolicy.h:329:13: warning: '__do_mbind' defined but not used [-Wunused-function]
329 | static long __do_mbind(unsigned long start, unsigned long len,
| ^~~~~~~~~~
mm/hugetlb.c: In function 'free_back_hugetlb':
mm/hugetlb.c:3748:51: warning: array subscript idx is outside array bounds of 'struct dhugetlb_pool *[0]' [-Warray-bounds=]
3748 | dhugetlb_pagelist_t->hpool[idx] = NULL;
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
In file included from include/linux/migrate.h:8,
from mm/hugetlb.c:34:
include/linux/hugetlb.h:676:31: note: while referencing 'hpool'
676 | struct dhugetlb_pool *hpool[0];
| ^~~~~
mm/hugetlb.c: In function 'hugetlb_migrate_pages':
>> mm/hugetlb.c:3967:41: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
3967 | list_len(&hpool->smpool[i].head_page);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
mm/hugetlb.c:3966:46: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
3966 | hpool->smpool[i].free_pages =
| ~~~~~~~~~~~~~^~~
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In file included from include/linux/mmzone.h:9,
from include/linux/gfp.h:6,
from include/linux/mm.h:11:
In function 'spin_unlock',
inlined from 'hugetlb_migrate_pages' at mm/hugetlb.c:3972:5:
>> include/linux/spinlock.h:369:25: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
369 | raw_spin_unlock(&lock->rlock);
| ^~~~~~~~~~~~
include/linux/spinlock.h:273:58: note: in definition of macro 'raw_spin_unlock'
273 | #define raw_spin_unlock(lock) _raw_spin_unlock(lock)
| ^~~~
include/linux/hugetlb.h: In function 'hugetlb_migrate_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'spin_lock',
inlined from 'hugetlb_migrate_pages' at mm/hugetlb.c:3980:5:
include/linux/spinlock.h:329:23: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
329 | raw_spin_lock(&lock->rlock);
| ^~~~~~~~~~~~
include/linux/spinlock.h:214:48: note: in definition of macro 'raw_spin_lock'
214 | #define raw_spin_lock(lock) _raw_spin_lock(lock)
| ^~~~
include/linux/hugetlb.h: In function 'hugetlb_migrate_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'spin_lock',
inlined from 'dhugetlb_collect_2M_pages' at mm/hugetlb.c:4096:4:
include/linux/spinlock.h:329:23: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
329 | raw_spin_lock(&lock->rlock);
| ^~~~~~~~~~~~
include/linux/spinlock.h:214:48: note: in definition of macro 'raw_spin_lock'
214 | #define raw_spin_lock(lock) _raw_spin_lock(lock)
| ^~~~
include/linux/hugetlb.h: In function 'dhugetlb_collect_2M_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'merge_free_small_page',
inlined from 'dhugetlb_collect_2M_pages' at mm/hugetlb.c:4098:3:
mm/hugetlb.c:4076:33: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
4076 | list_len(&hpool->smpool[i].head_page);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/hugetlb.h: In function 'dhugetlb_collect_2M_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'merge_free_small_page',
inlined from 'dhugetlb_collect_2M_pages' at mm/hugetlb.c:4098:3:
mm/hugetlb.c:4075:30: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
4075 | hpool->smpool[i].free_pages =
| ~~~~~~~~~~~~~^~~
include/linux/hugetlb.h: In function 'dhugetlb_collect_2M_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'spin_unlock',
inlined from 'dhugetlb_collect_2M_pages' at mm/hugetlb.c:4100:4:
>> include/linux/spinlock.h:369:25: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
369 | raw_spin_unlock(&lock->rlock);
| ^~~~~~~~~~~~
include/linux/spinlock.h:273:58: note: in definition of macro 'raw_spin_unlock'
273 | #define raw_spin_unlock(lock) _raw_spin_unlock(lock)
| ^~~~
include/linux/hugetlb.h: In function 'dhugetlb_collect_2M_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'spin_unlock',
inlined from 'try_migrate_pages' at mm/hugetlb.c:3641:3:
>> include/linux/spinlock.h:369:25: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
369 | raw_spin_unlock(&lock->rlock);
| ^~~~~~~~~~~~
include/linux/spinlock.h:273:58: note: in definition of macro 'raw_spin_unlock'
273 | #define raw_spin_unlock(lock) _raw_spin_unlock(lock)
| ^~~~
include/linux/hugetlb.h: In function 'try_migrate_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'spin_lock',
inlined from 'try_migrate_pages' at mm/hugetlb.c:3650:3:
include/linux/spinlock.h:329:23: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
329 | raw_spin_lock(&lock->rlock);
| ^~~~~~~~~~~~
include/linux/spinlock.h:214:48: note: in definition of macro 'raw_spin_lock'
214 | #define raw_spin_lock(lock) _raw_spin_lock(lock)
| ^~~~
include/linux/hugetlb.h: In function 'try_migrate_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
mm/hugetlb.c:3651:47: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
3651 | nr_free_pages += hpool->smpool[i].free_pages;
| ~~~~~~~~~~~~~^~~
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'spin_lock',
inlined from 'try_migrate_pages' at mm/hugetlb.c:3674:3:
include/linux/spinlock.h:329:23: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
329 | raw_spin_lock(&lock->rlock);
| ^~~~~~~~~~~~
include/linux/spinlock.h:214:48: note: in definition of macro 'raw_spin_lock'
214 | #define raw_spin_lock(lock) _raw_spin_lock(lock)
| ^~~~
include/linux/hugetlb.h: In function 'try_migrate_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
mm/hugetlb.c: In function 'free_dhugetlb_pages':
mm/hugetlb.c:3692:44: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
3692 | used_pages += hpool->smpool[i].used_pages;
| ~~~~~~~~~~~~~^~~
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'free_dhugetlb_pcpool',
inlined from 'free_dhugetlb_pages' at mm/hugetlb.c:3711:3:
mm/hugetlb.c:3474:26: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
3474 | smpool = &hpool->smpool[i];
| ^~~~~~~~~~~~~~~~~
include/linux/hugetlb.h: In function 'free_dhugetlb_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'free_dhugetlb_pcpool',
inlined from 'free_dhugetlb_pages' at mm/hugetlb.c:3711:3:
mm/hugetlb.c:3475:29: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
3475 | list_splice(&smpool->head_page, &hpool->dhugetlb_4K_freelists);
| ^~~~~~~~~~~~~~~~~~
include/linux/hugetlb.h: In function 'free_dhugetlb_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'free_dhugetlb_pcpool',
inlined from 'free_dhugetlb_pages' at mm/hugetlb.c:3711:3:
mm/hugetlb.c:3474:40: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
3474 | smpool = &hpool->smpool[i];
| ~~~~~~~~~~~~~^~~
include/linux/hugetlb.h: In function 'free_dhugetlb_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'free_dhugetlb_pcpool',
inlined from 'free_dhugetlb_pages' at mm/hugetlb.c:3711:3:
mm/hugetlb.c:3474:40: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
3474 | smpool = &hpool->smpool[i];
| ~~~~~~~~~~~~~^~~
include/linux/hugetlb.h: In function 'free_dhugetlb_pages':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
mm/hugetlb.c: In function 'hpool_alloc':
include/linux/spinlock.h:324:28: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
324 | raw_spin_lock_init(&(_lock)->rlock); \
| ^
include/linux/spinlock.h:100:31: note: in definition of macro 'raw_spin_lock_init'
100 | __raw_spin_lock_init((lock), #lock, &__key); \
| ^~~~
mm/hugetlb.c:3327:17: note: in expansion of macro 'spin_lock_init'
3327 | spin_lock_init(&hpool->smpool[i].lock);
| ^~~~~~~~~~~~~~
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
mm/hugetlb.c:3328:17: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
3328 | INIT_LIST_HEAD(&hpool->smpool[i].head_page);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
mm/hugetlb.c: In function 'update_dhugetlb_pagelist':
mm/hugetlb.c:3408:35: warning: array subscript idx is outside array bounds of 'struct dhugetlb_pool *[0]' [-Warray-bounds=]
3408 | dhugetlb_pagelist_t->hpool[idx] = hpool;
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
include/linux/hugetlb.h:676:31: note: while referencing 'hpool'
676 | struct dhugetlb_pool *hpool[0];
| ^~~~~
mm/hugetlb.c: In function 'get_dhugetlb_pool_from_dhugetlb_pagelist':
mm/hugetlb.c:3421:51: warning: array subscript idx is outside array bounds of 'struct dhugetlb_pool *[0]' [-Warray-bounds=]
3421 | hpool = dhugetlb_pagelist_t->hpool[idx];
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
include/linux/hugetlb.h:676:31: note: while referencing 'hpool'
676 | struct dhugetlb_pool *hpool[0];
| ^~~~~
In function 'spin_lock',
inlined from 'free_dhugetlb_pool' at mm/hugetlb.c:3766:3:
include/linux/spinlock.h:329:23: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
329 | raw_spin_lock(&lock->rlock);
| ^~~~~~~~~~~~
include/linux/spinlock.h:214:48: note: in definition of macro 'raw_spin_lock'
214 | #define raw_spin_lock(lock) _raw_spin_lock(lock)
| ^~~~
include/linux/hugetlb.h: In function 'free_dhugetlb_pool':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'spin_unlock',
inlined from 'free_dhugetlb_pool' at mm/hugetlb.c:3778:3:
>> include/linux/spinlock.h:369:25: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
369 | raw_spin_unlock(&lock->rlock);
| ^~~~~~~~~~~~
include/linux/spinlock.h:273:58: note: in definition of macro 'raw_spin_unlock'
273 | #define raw_spin_unlock(lock) _raw_spin_unlock(lock)
| ^~~~
include/linux/hugetlb.h: In function 'free_dhugetlb_pool':
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
--
| ^~~
In file included from include/linux/shmem_fs.h:7,
from mm/memcontrol.c:39:
include/linux/mempolicy.h: At top level:
include/linux/mempolicy.h:329:13: warning: '__do_mbind' defined but not used [-Wunused-function]
329 | static long __do_mbind(unsigned long start, unsigned long len,
| ^~~~~~~~~~
In function 'free_mem_cgroup_per_node_info',
inlined from '__mem_cgroup_free' at mm/memcontrol.c:5315:3:
mm/memcontrol.c:5296:57: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
5296 | struct mem_cgroup_per_node *pn = memcg->nodeinfo[node];
| ~~~~~~~~~~~~~~~^~~~~~
In file included from mm/memcontrol.c:35:
include/linux/memcontrol.h: In function '__mem_cgroup_free':
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
mm/memcontrol.c: In function 'alloc_mem_cgroup_per_node_info.constprop':
mm/memcontrol.c:5290:24: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
5290 | memcg->nodeinfo[node] = pn;
| ~~~~~~~~~~~~~~~^~~~~~
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
In function 'mem_cgroup_nodeinfo',
inlined from 'memcg_free_shrinker_maps.part.0' at mm/memcontrol.c:375:8:
include/linux/memcontrol.h:399:31: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
399 | return memcg->nodeinfo[nid];
| ~~~~~~~~~~~~~~~^~~~~
include/linux/memcontrol.h: In function 'memcg_free_shrinker_maps.part.0':
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
In function 'mem_cgroup_nodeinfo',
inlined from 'memcg_expand_one_shrinker_map' at mm/memcontrol.c:344:9:
include/linux/memcontrol.h:399:31: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
399 | return memcg->nodeinfo[nid];
| ~~~~~~~~~~~~~~~^~~~~
include/linux/memcontrol.h: In function 'memcg_expand_one_shrinker_map':
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
In file included from arch/x86/include/asm/atomic.h:5,
from include/linux/atomic.h:7,
from include/linux/page_counter.h:5:
mm/memcontrol.c:358:51: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
358 | rcu_assign_pointer(memcg->nodeinfo[nid]->shrinker_map, new);
| ~~~~~~~~~~~~~~~^~~~~
include/linux/compiler.h:296:29: note: in definition of macro 'WRITE_ONCE'
296 | __write_once_size(&(x), __u.__c, sizeof(x)); \
| ^
include/linux/rcupdate.h:409:17: note: in expansion of macro 'smp_store_release'
409 | smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
| ^~~~~~~~~~~~~~~~~
mm/memcontrol.c:358:17: note: in expansion of macro 'rcu_assign_pointer'
358 | rcu_assign_pointer(memcg->nodeinfo[nid]->shrinker_map, new);
| ^~~~~~~~~~~~~~~~~~
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
In function 'mem_cgroup_nodeinfo',
inlined from '__invalidate_reclaim_iterators' at mm/memcontrol.c:1185:8,
inlined from 'invalidate_reclaim_iterators' at mm/memcontrol.c:1211:3,
inlined from 'mem_cgroup_css_released' at mm/memcontrol.c:5520:2:
include/linux/memcontrol.h:399:31: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
399 | return memcg->nodeinfo[nid];
| ~~~~~~~~~~~~~~~^~~~~
include/linux/memcontrol.h: In function 'mem_cgroup_css_released':
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
In function 'mem_cgroup_nodeinfo',
inlined from '__invalidate_reclaim_iterators' at mm/memcontrol.c:1185:8,
inlined from 'invalidate_reclaim_iterators' at mm/memcontrol.c:1200:3,
inlined from 'mem_cgroup_css_released' at mm/memcontrol.c:5520:2:
include/linux/memcontrol.h:399:31: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
399 | return memcg->nodeinfo[nid];
| ~~~~~~~~~~~~~~~^~~~~
include/linux/memcontrol.h: In function 'mem_cgroup_css_released':
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
mm/memcontrol.c: In function 'memcg_flush_percpu_vmstats':
mm/memcontrol.c:3318:65: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
3318 | struct mem_cgroup_per_node *pn = memcg->nodeinfo[node];
| ~~~~~~~~~~~~~~~^~~~~~
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
In function 'mem_cgroup_nodeinfo',
inlined from 'parent_nodeinfo' at mm/memcontrol.c:726:9,
inlined from 'memcg_flush_percpu_vmstats' at mm/memcontrol.c:3331:26:
include/linux/memcontrol.h:399:31: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
399 | return memcg->nodeinfo[nid];
| ~~~~~~~~~~~~~~~^~~~~
include/linux/memcontrol.h: In function 'memcg_flush_percpu_vmstats':
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
mm/memcontrol.c: In function '__alloc_page_from_dhugetlb_pool':
>> mm/memcontrol.c:4769:18: warning: array subscript 0 is outside array bounds of 'struct small_page_pool[0]' [-Warray-bounds=]
4769 | smpool = &hpool->smpool[smp_processor_id()];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from mm/memcontrol.c:40:
include/linux/hugetlb.h:725:32: note: while referencing 'smpool'
725 | struct small_page_pool smpool[0];
| ^~~~~~
In function 'memcg_alloc_shrinker_maps',
inlined from 'mem_cgroup_css_online' at mm/memcontrol.c:5472:6:
mm/memcontrol.c:400:51: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
400 | rcu_assign_pointer(memcg->nodeinfo[nid]->shrinker_map, map);
| ~~~~~~~~~~~~~~~^~~~~
include/linux/compiler.h:296:29: note: in definition of macro 'WRITE_ONCE'
296 | __write_once_size(&(x), __u.__c, sizeof(x)); \
| ^
include/linux/rcupdate.h:409:17: note: in expansion of macro 'smp_store_release'
409 | smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
| ^~~~~~~~~~~~~~~~~
mm/memcontrol.c:400:17: note: in expansion of macro 'rcu_assign_pointer'
400 | rcu_assign_pointer(memcg->nodeinfo[nid]->shrinker_map, map);
| ^~~~~~~~~~~~~~~~~~
include/linux/memcontrol.h: In function 'mem_cgroup_css_online':
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
In function 'mem_cgroup_nodeinfo',
inlined from 'mem_cgroup_remove_from_trees' at mm/memcontrol.c:643:8,
inlined from 'mem_cgroup_css_free' at mm/memcontrol.c:5535:2:
include/linux/memcontrol.h:399:31: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
399 | return memcg->nodeinfo[nid];
| ~~~~~~~~~~~~~~~^~~~~
include/linux/memcontrol.h: In function 'mem_cgroup_css_free':
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
mm/memcontrol.c: In function '__mem_cgroup_threshold':
mm/memcontrol.c:4055:45: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=]
4055 | for (; i >= 0 && unlikely(t->entries[i].threshold > usage); i--)
| ~~~~~~~~~~^~~
include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
include/linux/memcontrol.h:170:37: note: while referencing 'entries'
170 | struct mem_cgroup_threshold entries[0];
| ^~~~~~~
mm/memcontrol.c:4056:42: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=]
4056 | eventfd_signal(t->entries[i].eventfd, 1);
| ~~~~~~~~~~^~~
include/linux/memcontrol.h:170:37: note: while referencing 'entries'
170 | struct mem_cgroup_threshold entries[0];
| ^~~~~~~
mm/memcontrol.c:4067:50: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=]
4067 | for (; i < t->size && unlikely(t->entries[i].threshold <= usage); i++)
| ~~~~~~~~~~^~~
include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
include/linux/memcontrol.h:170:37: note: while referencing 'entries'
170 | struct mem_cgroup_threshold entries[0];
| ^~~~~~~
mm/memcontrol.c:4068:42: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=]
4068 | eventfd_signal(t->entries[i].eventfd, 1);
| ~~~~~~~~~~^~~
include/linux/memcontrol.h:170:37: note: while referencing 'entries'
170 | struct mem_cgroup_threshold entries[0];
| ^~~~~~~
In function 'mem_cgroup_page_nodeinfo',
inlined from 'mem_cgroup_update_tree' at mm/memcontrol.c:613:8,
inlined from 'memcg_check_events.part.0' at mm/memcontrol.c:904:4:
mm/memcontrol.c:507:31: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=]
507 | return memcg->nodeinfo[nid];
| ~~~~~~~~~~~~~~~^~~~~
include/linux/memcontrol.h: In function 'memcg_check_events.part.0':
include/linux/memcontrol.h:324:37: note: while referencing 'nodeinfo'
324 | struct mem_cgroup_per_node *nodeinfo[0];
| ^~~~~~~~
mm/memcontrol.c: In function '__mem_cgroup_usage_unregister_event':
mm/memcontrol.c:4268:49: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=]
4268 | if (thresholds->primary->entries[i].eventfd == eventfd)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
include/linux/memcontrol.h:170:37: note: while referencing 'entries'
170 | struct mem_cgroup_threshold entries[0];
| ^~~~~~~
mm/memcontrol.c:4271:63: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=]
4271 | new->entries[j] = thresholds->primary->entries[i];
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
include/linux/memcontrol.h:170:37: note: while referencing 'entries'
170 | struct mem_cgroup_threshold entries[0];
| ^~~~~~~
mm/memcontrol.c:4271:29: warning: array subscript j is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=]
4271 | new->entries[j] = thresholds->primary->entries[i];
| ~~~~~~~~~~~~^~~
include/linux/memcontrol.h:170:37: note: while referencing 'entries'
170 | struct mem_cgroup_threshold entries[0];
| ^~~~~~~
mm/memcontrol.c:4272:33: warning: array subscript j is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=]
4272 | if (new->entries[j].threshold <= usage) {
| ~~~~~~~~~~~~^~~
include/linux/memcontrol.h:170:37: note: while referencing 'entries'
170 | struct mem_cgroup_threshold entries[0];
| ^~~~~~~
..
vim +3967 mm/hugetlb.c
3938
3939 static void hugetlb_migrate_pages(struct dhugetlb_pool *hpool,
3940 unsigned long count)
3941 {
3942 int i, try;
3943 struct page *page;
3944 struct split_pages *split_huge, *split_next;
3945 unsigned long nr_pages = 1 << (PMD_SHIFT - PAGE_SHIFT);
3946 LIST_HEAD(wait_page_list);
3947
3948 list_for_each_entry_safe(split_huge, split_next,
3949 &hpool->split_2M_freelists, list) {
3950 /*
3951 * Isolate free page first because we dont want them to be
3952 * allocated.
3953 */
3954 for (i = 0; i < nr_pages; i++) {
3955 page = pfn_to_page(split_huge->start_pfn + i);
3956 if (!PagePool(page))
3957 list_move(&page->lru, &wait_page_list);
3958 }
3959
3960 for (try = 0; try < HPOOL_RECLAIM_RETRIES; try++) {
3961 /*
3962 * Unlock and try migration, after migration we need
3963 * to lock back.
3964 */
3965 for (i = 0; i < NR_SMPOOL; i++)
3966 hpool->smpool[i].free_pages =
> 3967 list_len(&hpool->smpool[i].head_page);
3968 hpool->free_pages =
3969 list_len(&hpool->dhugetlb_4K_freelists);
3970 spin_unlock(&hpool->lock);
3971 for (i = NR_SMPOOL - 1; i >= 0; i--)
3972 spin_unlock(&hpool->smpool[i].lock);
3973
3974 for (i = 0; i < nr_pages; i++) {
3975 page = pfn_to_page(split_huge->start_pfn + i);
3976 if (PagePool(page))
3977 try_migrate_page(page, hpool->nid);
3978 }
3979 for (i = 0; i < NR_SMPOOL; i++)
3980 spin_lock(&hpool->smpool[i].lock);
3981 spin_lock(&hpool->lock);
3982
3983 /*
3984 * Isolate free page. If all page in the split_huge
3985 * is free, return it.
3986 */
3987 split_huge->free_pages = 0;
3988 for (i = 0; i < nr_pages; i++) {
3989 page = pfn_to_page(split_huge->start_pfn + i);
3990 if (!PagePool(page)) {
3991 list_move(&page->lru, &wait_page_list);
3992 split_huge->free_pages++;
3993 }
3994 }
3995 if (split_huge->free_pages == nr_pages)
3996 break;
3997 }
3998 if (split_huge->free_pages == nr_pages) {
3999 for (i = 0; i < nr_pages; i++) {
4000 page = pfn_to_page(split_huge->start_pfn + i);
4001 list_del(&page->lru);
4002 }
4003 INIT_LIST_HEAD(&wait_page_list);
4004 page = pfn_to_page(split_huge->start_pfn);
4005 add_new_huge_page_to_pool(hpool, page, false);
4006 list_del(&split_huge->list);
4007 kfree(split_huge);
4008 hpool->nr_split_2M--;
4009
4010 trace_dhugetlb_split_merge(hpool, page,
4011 DHUGETLB_MIGRATE_4K);
4012
4013 if (--count == 0)
4014 return;
4015 } else {
4016 /* Failed, put back the isolate pages */
4017 list_splice(&wait_page_list,
4018 &hpool->dhugetlb_4K_freelists);
4019 INIT_LIST_HEAD(&wait_page_list);
4020 }
4021 }
4022 }
4023
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
1
0