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authorJulian Wiedmann <jwi@linux.vnet.ibm.com>2017-09-14 09:52:32 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2017-09-29 15:51:30 +0200
commitf9a5d70cfaf3e32308de0abfcc95dafe4e36ea51 (patch)
tree6063a9716e4239f50089567a44d48137715dd40b /drivers/s390/net/lcs.c
parentbf7fa038707c4c7a51a8f3fc1872a7c0d2adf1d3 (diff)
s390/ccwgroup: tie a ccwgroup driver to its ccw driver
When grouping devices, the ccwgroup core only checks whether all of the devices are bound to the same ccw_driver. It has no means of checking if the requesting ccwgroup driver actually supports this device type. qeth implements its own device matching in qeth_core_probe_device(), while ctcm and lcs currently have no sanity-checking at all. Enable ccwgroup drivers to optionally defer the device type checking to the ccwgroup core, by specifying their supported ccw_driver. This allows us drop the device type matching from qeth, and improves the robustness of ctcm and lcs. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/net/lcs.c')
-rw-r--r--drivers/s390/net/lcs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index d01b5c2a7760..0bf7b7356f10 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -2396,6 +2396,7 @@ static struct ccwgroup_driver lcs_group_driver = {
.owner = THIS_MODULE,
.name = "lcs",
},
+ .ccw_driver = &lcs_ccw_driver,
.setup = lcs_probe_device,
.remove = lcs_remove_device,
.set_online = lcs_new_device,