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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-18 11:08:06 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-18 11:08:06 -0800
commita087241716a6cea8518ca33839276a9648d91cef (patch)
tree3e116bc10b133ab75f0683b1bcc5f60e9fd5022a /drivers/s390/cio
parent5ba836eb9fdb07843cfa004e511f333745adb76e (diff)
parentdfdc6e73cdcf011a04568231132916c6d06b861f (diff)
Merge tag 's390-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Heiko Carstens: "This is mainly to decouple udelay() and arch_cpu_idle() and simplify both of them. Summary: - Always initialize kernel stack backchain when entering the kernel, so that unwinding works properly. - Fix stack unwinder test case to avoid rare interrupt stack corruption. - Simplify udelay() and just let it busy loop instead of implementing a complex logic. - arch_cpu_idle() cleanup. - Some other minor improvements" * tag 's390-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/zcrypt: convert comma to semicolon s390/idle: allow arch_cpu_idle() to be kprobed s390/idle: remove raw_local_irq_save()/restore() from arch_cpu_idle() s390/idle: merge enabled_wait() and arch_cpu_idle() s390/delay: remove udelay_simple() s390/irq: select HAVE_IRQ_EXIT_ON_IRQ_STACK s390/delay: simplify udelay s390/test_unwind: use timer instead of udelay s390/test_unwind: fix CALL_ON_STACK tests s390: make calls to TRACE_IRQS_OFF/TRACE_IRQS_ON balanced s390: always clear kernel stack backchain before calling functions
Diffstat (limited to 'drivers/s390/cio')
-rw-r--r--drivers/s390/cio/device.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 36583dc8406c..4b0a7cbb2096 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1681,7 +1681,7 @@ void ccw_device_wait_idle(struct ccw_device *cdev)
cio_tsch(sch);
if (sch->schib.scsw.cmd.actl == 0)
break;
- udelay_simple(100);
+ udelay(100);
}
}
#endif