Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Martin Schwidefsky:

 - New entropy generation for the pseudo random number generator.

 - Early boot printk output via sclp to help debug crashes on boot. This
   needs to be enabled with a kernel parameter.

 - Add proper no-execute support with a bit in the page table entry.

 - Bug fixes and cleanups.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (65 commits)
  s390/syscall: fix single stepped system calls
  s390/zcrypt: make ap_bus explicitly non-modular
  s390/zcrypt: Removed unneeded debug feature directory creation.
  s390: add missing "do {} while (0)" loop constructs to multiline macros
  s390/mm: add cond_resched call to kernel page table dumper
  s390: get rid of MACHINE_HAS_PFMF and MACHINE_HAS_HPAGE
  s390/mm: make memory_block_size_bytes available for !MEMORY_HOTPLUG
  s390: replace ACCESS_ONCE with READ_ONCE
  s390: Audit and remove any remaining unnecessary uses of module.h
  s390: mm: Audit and remove any unnecessary uses of module.h
  s390: kernel: Audit and remove any unnecessary uses of module.h
  s390/kdump: Use "LINUX" ELF note name instead of "CORE"
  s390: add no-execute support
  s390: report new vector facilities
  s390: use correct input data address for setup_randomness
  s390/sclp: get rid of common response code handling
  s390/sclp: don't add new lines to each printed string
  s390/sclp: make early sclp code readable
  s390/sclp: disable early sclp code as soon as the base sclp driver is active
  s390/sclp: move early printk code to drivers
  ...

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c
index 876c7e6e3a99..7e0d4f724dda 100644
--- a/drivers/s390/cio/chp.c
+++ b/drivers/s390/cio/chp.c
@@ -444,6 +444,7 @@ int chp_update_desc(struct channel_path *chp)
  */
 int chp_new(struct chp_id chpid)
 {
+	struct channel_subsystem *css = css_by_id(chpid.cssid);
 	struct channel_path *chp;
 	int ret;
 
@@ -456,7 +457,7 @@ int chp_new(struct chp_id chpid)
 	/* fill in status, etc. */
 	chp->chpid = chpid;
 	chp->state = 1;
-	chp->dev.parent = &channel_subsystems[chpid.cssid]->device;
+	chp->dev.parent = &css->device;
 	chp->dev.groups = chp_attr_groups;
 	chp->dev.release = chp_release;
 	mutex_init(&chp->lock);
@@ -479,17 +480,17 @@ int chp_new(struct chp_id chpid)
 		put_device(&chp->dev);
 		goto out;
 	}
-	mutex_lock(&channel_subsystems[chpid.cssid]->mutex);
-	if (channel_subsystems[chpid.cssid]->cm_enabled) {
+	mutex_lock(&css->mutex);
+	if (css->cm_enabled) {
 		ret = chp_add_cmg_attr(chp);
 		if (ret) {
 			device_unregister(&chp->dev);
-			mutex_unlock(&channel_subsystems[chpid.cssid]->mutex);
+			mutex_unlock(&css->mutex);
 			goto out;
 		}
 	}
-	channel_subsystems[chpid.cssid]->chps[chpid.id] = chp;
-	mutex_unlock(&channel_subsystems[chpid.cssid]->mutex);
+	css->chps[chpid.id] = chp;
+	mutex_unlock(&css->mutex);
 	goto out;
 out_free:
 	kfree(chp);