s390/dasd: Simplify uid string generation

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There are two variants of the device uid string. One containing the
virtual device unit information table (vduit) identifying the device as
a virtual device located on a real device in a z/VM environment. The
other variant does not contain those additional information.

Simplify the string generation with a shorter check of an existing vduit
embedded in the snprintf() calls.

Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Link: https://lore.kernel.org/r/20240208164248.540985-2-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Jan Höppner 2024-02-08 17:42:40 +01:00 • committed by Jens Axboe

parent 052618c71c

commit e5de34db1e

2 changed files with 7 additions and 21 deletions

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12

drivers/s390/block/dasd_devmap.c

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16

drivers/s390/block/dasd_eckd.c

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