On Tue, 25 May 2021 14:50:06 +0200
Stefan Haberland [off-list ref] wrote:

Fix crash with illegal operation exception in dasd_device_tasklet.
Commit b72949328869 ("s390/dasd: Prepare for additional path event handling")
renamed the verify_path function for ECKD but not for FBA and DIAG.
This leads to a panic when the path verification function is called for a
FBA or DIAG device.

Fix by defining a wrapper function for dasd_generic_verify_path().

Fixes: b72949328869 ("s390/dasd: Prepare for additional path event handling")

Cc: <redacted> #5.11
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
---
 drivers/s390/block/dasd_diag.c | 8 +++++++-
 drivers/s390/block/dasd_fba.c  | 8 +++++++-
 drivers/s390/block/dasd_int.h  | 1 -
 3 files changed, 14 insertions(+), 3 deletions(-)

Oops.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>

[Just to satisfy my curiosity: are there still any FBA devices around,
other than z/VM emulating a DASD frontend for FCP devices?]