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s390 updates for 6.0-rc2

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- Fix a KVM crash on z12 and older machines caused by a wrong
   assumption that Query AP Configuration Information is always
   available.
 
 - Lower severity of excessive Hypervisor filesystem error messages
   when booting under KVM.
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Merge tag 's390-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Alexander Gordeev:

 - Fix a KVM crash on z12 and older machines caused by a wrong
   assumption that Query AP Configuration Information is always
   available.

 - Lower severity of excessive Hypervisor filesystem error messages
   when booting under KVM.

* tag 's390-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/ap: fix crash on older machines based on QCI info missing
  s390/hypfs: avoid error message under KVM
This commit is contained in:
Linus Torvalds 2022-08-20 11:29:01 -07:00
parent 32dd68f110 0fef40be5d
commit cc1807b915
4 changed files with 9 additions and 2 deletions
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2
arch/s390/hypfs/hypfs_diag.c
View file

@ -437,7 +437,7 @@ __init int hypfs_diag_init(void)
int rc;
if (diag204_probe()) {
pr_err("The hardware system does not support hypfs\n");
pr_info("The hardware system does not support hypfs\n");
return -ENODATA;
}

2
arch/s390/hypfs/inode.c
View file

@ -496,9 +496,9 @@ static int __init hypfs_init(void)
hypfs_vm_exit();
fail_hypfs_diag_exit:
hypfs_diag_exit();
pr_err("Initialization of hypfs failed with rc=%i\n", rc);
fail_dbfs_exit:
hypfs_dbfs_exit();
pr_err("Initialization of hypfs failed with rc=%i\n", rc);
return rc;
}
device_initcall(hypfs_init)

3
drivers/s390/crypto/ap_bus.c
View file

@ -2086,6 +2086,9 @@ static inline void ap_scan_adapter(int ap)
*/
static bool ap_get_configuration(void)
{
if (!ap_qci_info) /* QCI not supported */
return false;
memcpy(ap_qci_info_old, ap_qci_info, sizeof(*ap_qci_info));
ap_fetch_qci_info(ap_qci_info);

4
drivers/s390/crypto/ap_bus.h
View file

@ -148,12 +148,16 @@ struct ap_driver {
/*
* Called at the start of the ap bus scan function when
* the crypto config information (qci) has changed.
* This callback is not invoked if there is no AP
* QCI support available.
*/
void (*on_config_changed)(struct ap_config_info *new_config_info,
struct ap_config_info *old_config_info);
/*
* Called at the end of the ap bus scan function when
* the crypto config information (qci) has changed.
* This callback is not invoked if there is no AP
* QCI support available.
*/
void (*on_scan_complete)(struct ap_config_info *new_config_info,
struct ap_config_info *old_config_info);