• Bug#1106710: sl-modem-dkms: module fails to build for Linux 6.15: suppo

    From Andreas Beckmann@21:1/5 to All on Wed May 28 12:10:01 2025
    Package: sl-modem-dkms
    Version: 2.9.11~20110321-20
    Severity: important
    Tags: upstream sid forky

    Hi,

    sl-modem-dkms fails to build the module(s) for Linux 6.15 in
    experimental:

    DKMS (dkms-3.2.0) make.log for sl-modem/2.9.11~20110321 for kernel 6.15-rc7-amd64 (x86_64)
    Sat May 24 21:53:48 UTC 2025

    Building module(s)
    # command: cd /var/lib/dkms/sl-modem/2.9.11~20110321/build && touch drivers/.amrlibs.o.cmd && make -C drivers USB=1 KERNEL_DIR=/lib/modules/6.15-rc7-amd64/build KERNEL_VER=6.15-rc7-amd64 && make -C ungrab-winmodem KERNEL_DIR=/lib/modules/6.15-rc7-amd64/
    build KERNEL_VER=6.15-rc7-amd64
    make: Entering directory '/var/lib/dkms/sl-modem/2.9.11~20110321/build/drivers'
    obj-m= slusb.o
    slamr-objs=amrmo_init.o sysdep_amr.o amrlibs.o
    make modules -C /lib/modules/6.15-rc7-amd64/build M=/var/lib/dkms/sl-modem/2.9.11~20110321/build/drivers
    make[1]: Entering directory '/usr/src/linux-headers-6.15-rc7-amd64'
    make[2]: Entering directory '/var/lib/dkms/sl-modem/2.9.11~20110321/build/drivers'
    CC [M] st7554.o
    st7554.c:59:10: fatal error: modem_defs.h: No such file or directory
    59 | #include <modem_defs.h>
    | ^~~~~~~~~~~~~~
    compilation terminated.
    make[4]: *** [/usr/src/linux-headers-6.15-rc7-common/scripts/Makefile.build:208: st7554.o] Error 1
    make[3]: *** [/usr/src/linux-headers-6.15-rc7-common/Makefile:2027: .] Error 2 make[2]: *** [/usr/src/linux-headers-6.15-rc7-common/Makefile:260: __sub-make] Error 2
    make[2]: Leaving directory '/var/lib/dkms/sl-modem/2.9.11~20110321/build/drivers'
    make[1]: *** [/usr/src/linux-headers-6.15-rc7-common/Makefile:260: __sub-make] Error 2
    make[1]: Leaving directory '/usr/src/linux-headers-6.15-rc7-amd64'
    make: *** [Makefile:138: all] Error 2
    make: Leaving directory '/var/lib/dkms/sl-modem/2.9.11~20110321/build/drivers'

    # exit code: 2
    # elapsed time: 00:00:02 ----------------------------------------------------------------


    This is most likely caused by the usage of deprecated EXTRA_CFLAGS
    (superseded by ccflags-y since 2007) where the backwards compatibility
    support has been removed in v6.15-rc1, finally.
    "kbuild: remove EXTRA_*FLAGS support" https://github.com/torvalds/linux/commit/e966ad0edd0056c7491b8f23992c11734ab61ddf

    Andreas

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