DAHDI mainline and next kernel builds are failing as follows:
CC [M] wcfxo.o
./makefw tormenta2.rbt tor2fw > tor2fw.h
Loaded 69900 bytes from file
CC [M] tor2.o
./makefw pciradio.rbt radfw > radfw.h
Loaded 42096 bytes from file
CC [M] pciradio.o
CC [M] dahdi_echocan_jpah.o
CC [M] dahdi_echocan_sec.o
CC [M] dahdi_echocan_sec2.o
CC [M] dahdi_echocan_kb1.o
CC [M] dahdi_echocan_mg2.o
CC [M] vpmadt032_loader/dahdi_vpmadt032_loader.o
cp vpmadt032_loader/vpmadt032_x86_64.o_shipped vpmadt032_loader/vpmadt032_x86_64.o
LD [M] dahdi_vpmadt032_loader.o
dahdi_vpmadt032_loader.o: warning: objtool: .text+0x43e6: unannotated intra-function call
make[4]: *** [/usr/src/linux/scripts/Makefile.build:412: dahdi_vpmadt032_loader.o] Error 255
make[4]: *** Deleting file 'dahdi_vpmadt032_loader.o'
make[3]: *** [/usr/src/linux/Makefile:1997: .] Error 2
make[2]: *** [/usr/src/linux/Makefile:251: __sub-make] Error 2
make[2]: Leaving directory '/usr/src/dahdi-linux-3.4.0/drivers/dahdi'
make[1]: *** [Makefile:251: __sub-make] Error 2
make[1]: Leaving directory '/usr/src/linux'
make: *** [Makefile:74: modules] Error 2
DAHDI Linux compilation failed, aborting install
See: https://github.com/torvalds/linux/blob/master/tools/objtool/Documentation/objtool.txt#L443
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