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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-18 22:08:06 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-18 22:08:06 +0300 |
| commit | a087241716a6cea8518ca33839276a9648d91cef (patch) | |
| tree | 3e116bc10b133ab75f0683b1bcc5f60e9fd5022a /drivers/s390/cio | |
| parent | 5ba836eb9fdb07843cfa004e511f333745adb76e (diff) | |
| parent | dfdc6e73cdcf011a04568231132916c6d06b861f (diff) | |
| download | linux-a087241716a6cea8518ca33839276a9648d91cef.tar.xz | |
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.c | 2 |
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 |