[PATCH v2 0/4] xen: prefer xenbus_scanf() over xenbus_gather()

[Jan Beulich]

For single items being collected this should be preferred as being more
typesafe (as the compiler can check format string and to-be-written-to
variable match) and more efficient (requiring one less parameter to be
passed).

1: xenbus: prefer xenbus_scanf() over xenbus_gather()
2: xen-blkback: prefer xenbus_scanf() over xenbus_gather()
3: xen-blkfront: prefer xenbus_scanf() over xenbus_gather()
4: xen-netback: prefer xenbus_scanf() over xenbus_gather()

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
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v2: Avoid commit messages to continue from subjects. Group into a series.