Thomas Gleixner 927aa9a10f genirq/matrix: Deal with the sillyness of for_each_cpu() on UP ... commit 784a083037 upstream. Most of the CPU mask operations behave the same way, but for_each_cpu() and it's variants ignore the cpumask argument and claim that CPU0 is always in the mask. This is historical, inconsistent and annoying behaviour. The matrix allocator uses for_each_cpu() and can be called on UP with an empty cpumask. The calling code does not expect that this succeeds but until commit e027fffff7 ("x86/irq: Unbreak interrupt affinity setting") this went unnoticed. That commit added a WARN_ON() to catch cases which move an interrupt from one vector to another on the same CPU. The warning triggers on UP. Add a check for the cpumask being empty to prevent this. Fixes: 2f75d9e1c9 ("genirq: Implement bitmap matrix allocator") Reported-by: kernel test robot <rong.a.chen@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-09-03 11:27:06 +02:00
..
bpf	bpf: sockmap: Require attach_bpf_fd when detaching a program	2020-08-07 09:34:02 +02:00
cgroup	cgroup: fix cgroup_sk_alloc() for sk_clone_lock()	2020-07-22 09:32:49 +02:00
configs	…
debug	kgdb: Avoid suspicious RCU usage warning	2020-07-09 09:37:51 +02:00
dma	dma-direct: fix data truncation in dma_direct_get_required_mask()	2020-04-29 16:33:00 +02:00
events	uprobes: __replace_page() avoid BUG in munlock_vma_page()	2020-08-26 10:40:51 +02:00
gcov	kernel/gcov/fs.c: gcov_seq_next() should increase position index	2020-04-29 16:33:00 +02:00
irq	genirq/matrix: Deal with the sillyness of for_each_cpu() on UP	2020-09-03 11:27:06 +02:00
livepatch	…
locking	locking/lockdep: Fix overflow in presentation of average lock-time	2020-09-03 11:26:47 +02:00
power	PM: hibernate: Freeze kernel threads in software_resume()	2020-05-06 08:15:09 +02:00
printk	printk: queue wake_up_klogd irq_work only if per-CPU areas are ready	2020-05-02 08:48:42 +02:00
rcu	rcu: Allow only one expedited GP to run concurrently with wakeups	2020-03-05 16:43:50 +01:00
sched	sched/uclamp: Fix a deadlock when enabling uclamp static key	2020-09-03 11:26:49 +02:00
time	random32: update the net random state on interrupt and activity	2020-08-07 09:34:01 +02:00
trace	blktrace: ensure our debugfs dir exists	2020-09-03 11:26:42 +02:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	…
Kconfig.preempt	…
Makefile	…
acct.c	…
async.c	…
audit.c	audit: fix a net reference leak in audit_list_rules_send()	2020-06-22 09:30:59 +02:00
audit.h	audit: fix a net reference leak in audit_list_rules_send()	2020-06-22 09:30:59 +02:00
audit_fsnotify.c	…
audit_tree.c	…
audit_watch.c	…
auditfilter.c	audit: fix a net reference leak in audit_list_rules_send()	2020-06-22 09:30:59 +02:00
auditsc.c	…
backtracetest.c	…
bounds.c	…
capability.c	…
compat.c	…
configs.c	…
context_tracking.c	…
cpu.c	sched/core: Fix illegal RCU from offline CPUs	2020-06-22 09:31:01 +02:00
cpu_pm.c	kernel/cpu_pm: Fix uninitted local in cpu_pm	2020-06-22 09:31:22 +02:00
crash_core.c	…
crash_dump.c	…
cred.c	keys: Fix request_key() cache	2020-01-17 19:48:42 +01:00
delayacct.c	…
dma.c	…
elfcore.c	…
exec_domain.c	…
exit.c	exit: Move preemption fixup up, move blocking operations down	2020-06-22 09:31:01 +02:00
extable.c	…
fail_function.c	…
fork.c	fork: prevent accidental access to clone3 features	2020-05-20 08:20:22 +02:00
freezer.c	…
futex.c	futex: Unbreak futex hashing	2020-03-25 08:25:58 +01:00
gen_kheaders.sh	…
groups.c	…
hung_task.c	…
iomem.c	…
irq_work.c	…
jump_label.c	…
kallsyms.c	kallsyms: Refactor kallsyms_show_value() to take cred	2020-07-16 08:16:44 +02:00
kcmp.c	…
kcov.c	…
kexec.c	…
kexec_core.c	…
kexec_elf.c	…
kexec_file.c	…
kexec_internal.h	…
kheaders.c	…
kmod.c	kmod: make request_module() return an error when autoloading is disabled	2020-04-17 10:50:22 +02:00
kprobes.c	kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler	2020-08-21 13:05:27 +02:00
ksysfs.c	…
kthread.c	kthread: Do not preempt current task if it is going to call schedule()	2020-08-26 10:40:53 +02:00
latencytop.c	…
module-internal.h	…
module.c	module: Correctly truncate sysfs sections output	2020-08-21 13:05:28 +02:00
module_signature.c	…
module_signing.c	…
notifier.c	x86/mm: split vmalloc_sync_all()	2020-03-25 08:25:58 +01:00
nsproxy.c	…
padata.c	padata: add separate cpuhp node for CPUHP_PADATA_DEAD	2020-06-17 16:40:22 +02:00
panic.c	…
params.c	…
pid.c	…
pid_namespace.c	…
profile.c	…
ptrace.c	ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()	2020-01-23 08:22:36 +01:00
range.c	…
reboot.c	…
relay.c	kernel/relay.c: fix memleak on destroy relay channel	2020-08-26 10:40:51 +02:00
resource.c	/dev/mem: Revoke mappings when a driver claims the region	2020-06-24 17:50:35 +02:00
rseq.c	…
seccomp.c	seccomp: Fix ioctl number for SECCOMP_IOCTL_NOTIF_ID_VALID	2020-08-19 08:15:58 +02:00
signal.c	signal: check sig before setting info in kill_pid_usb_asyncio	2020-05-02 08:48:55 +02:00
smp.c	…
smpboot.c	…
smpboot.h	…
softirq.c	…
stackleak.c	…
stacktrace.c	…
stop_machine.c	…
sys.c	…
sys_ni.c	…
sysctl.c	kernel: sysctl: make drop_caches write-only	2020-01-04 19:18:32 +01:00
sysctl_binary.c	…
task_work.c	…
taskstats.c	taskstats: fix data-race	2020-01-09 10:19:54 +01:00
test_kprobes.c	…
torture.c	…
tracepoint.c	…
tsacct.c	…
ucount.c	…
uid16.c	…
uid16.h	…
umh.c	umh: fix memory leak on execve failure	2020-05-20 08:20:13 +02:00
up.c	…
user-return-notifier.c	…
user.c	…
user_namespace.c	…
utsname.c	…
utsname_sysctl.c	…
watchdog.c	watchdog/softlockup: Enforce that timestamp is valid on boot	2020-02-24 08:36:52 +01:00
watchdog_hld.c	…
workqueue.c	workqueue: don't use wq_select_unbound_cpu() for bound works	2020-03-18 07:17:50 +01:00
workqueue_internal.h	…