Tested with a QMI modem (SierraW MC7304) on an Osmocom 2G network
operated by osmo-gsm-tester. When setting the specific call type, an
Emergency Setup is submitted towards the network.
The driver vtables are read-only structures. This patch declares them as
'const' allowing the compiler to (optionally) put them in the RELRO
section. RELRO pages may be marked as read-only by the linker after
the relocations have been done ensuring that they aren't inadvertently
or maliciously altered at runtime.
Pau Espin
Alexander Couzens
Jonas Bonn
Marcel Holtmann