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s390/pci: update function handle after resume from hibernate

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Function handles may change while the system was in hibernation
use list pci functions and update the function handles.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott
2013-08-29 19:40:01 +02:00
committed by Martin Schwidefsky
parent d03abe5882
commit 57b5918c33
4 changed files with 45 additions and 5 deletions
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29
arch/s390/pci/pci_clp.c
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@@ -319,6 +319,20 @@ static void __clp_rescan(struct clp_fh_list_entry *entry)
}
}
static void __clp_update(struct clp_fh_list_entry *entry)
{
struct zpci_dev *zdev;
if (!entry->vendor_id)
return;
zdev = get_zdev_by_fid(entry->fid);
if (!zdev)
return;
zdev->fh = entry->fh;
}
int clp_scan_pci_devices(void)
{
struct clp_req_rsp_list_pci *rrb;
@@ -348,3 +362,18 @@ int clp_rescan_pci_devices(void)
clp_free_block(rrb);
return rc;
}
int clp_rescan_pci_devices_simple(void)
{
struct clp_req_rsp_list_pci *rrb;
int rc;
rrb = clp_alloc_block(GFP_NOWAIT);
if (!rrb)
return -ENOMEM;
rc = clp_list_pci(rrb, __clp_update);
clp_free_block(rrb);
return rc;
}