Hi,

dahdi-dkms fails to build a module for Linux 6.11 in experimental.
I haven't looked in detail, but this is probably caused by the switch
from gcc-13 to gcc-14 (and not a kernel interface change).
gcc-14 enabled -Werror=incompatible-pointer-types etc. by default.

DKMS make.log for dahdi-3.1.0+git20230717 for kernel 6.11-rc5-amd64 (x86_64)
Wed Sep 11 07:52:45 UTC 2024
make -C /lib/modules/6.11-rc5-amd64/build KBUILD_EXTMOD=/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi DAHDI_INCLUDE=/var/lib/dkms/dahdi/3.1.0+git20230717/build/include DAHDI_MODULES_EXTRA="dahdi_dummy.o dahdi_echocan_oslec.o " HOTPLUG_FIRMWARE=yes modules DAHDI_BUILD_ALL=m
make[1]: Entering directory '/usr/src/linux-headers-6.11-rc5-amd64'
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/icE1usb/icE1usb.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_adpcm_chan.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_channel.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_chip_open.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_chip_stats.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_conf_bridge.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_debug.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_events.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_interrupts.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_memory.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_miscellaneous.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_mixer.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_phasing_tsst.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_playout_buf.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_remote_debug.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_tlv.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_tone_detection.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_tsi_cnct.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/octdeviceapi/oct6100api/oct6100_api/oct6100_tsst.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/apilib/bt/octapi_bt0.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/apilib/largmath/octapi_largmath.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/apilib/llman/octapi_llman.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/oct612x-user.o
  LD [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/oct612x/oct612x.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wct4xxp/base.o
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wct4xxp/base.c:1157:1: warning: 'inline' is not at beginning of declaration [-Wold-style-declaration]
 1157 | static void inline t4_hdlc_xmit_fifo(struct t4 *wc, unsigned int span, struct t4_span *ts)
      | ^~~~~~
In file included from /usr/src/linux-headers-6.11-rc5-common/include/linux/srcu.h:21,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/notifier.h:16,
                 from /usr/src/linux-headers-6.11-rc5-common/arch/x86/include/asm/uprobes.h:13,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/uprobes.h:49,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/mm_types.h:16,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/mmzone.h:22,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/gfp.h:7,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/umh.h:4,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/kmod.h:9,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/module.h:17,
                 from /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wct4xxp/base.c:32:
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wct4xxp/base.c: In function 'free_wc':
/usr/src/linux-headers-6.11-rc5-common/include/linux/workqueue.h:724:9: warning: call to '__warn_flushing_systemwide_wq' declared with attribute warning: Please avoid flushing system-wide workqueues. [-Wattribute-warning]
  724 |         __warn_flushing_systemwide_wq();                                \
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wct4xxp/base.c:2016:9: note: in expansion of macro 'flush_scheduled_work'
 2016 |         flush_scheduled_work();
      |         ^~~~~~~~~~~~~~~~~~~~
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wct4xxp/vpm450m.o
  LD [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wct4xxp/wct4xxp.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctc4xxp/base.o
  LD [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctc4xxp/wctc4xxp.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctdm24xxp/base.o
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctdm24xxp/base.c: In function 'wait_access':
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctdm24xxp/base.c:1504:17: warning: "MAX" redefined
 1504 |         #define MAX 10 /* attempts */
      |                 ^~~
In file included from /usr/src/linux-headers-6.11-rc5-common/include/linux/kernel.h:28,
                 from /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctdm24xxp/base.c:41:
/usr/src/linux-headers-6.11-rc5-common/include/linux/minmax.h:330:9: note: this is the location of the previous definition
  330 | #define MAX(a,b) __cmp(max,a,b)
      |         ^~~
In file included from /usr/src/linux-headers-6.11-rc5-common/include/linux/srcu.h:21,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/notifier.h:16,
                 from /usr/src/linux-headers-6.11-rc5-common/arch/x86/include/asm/uprobes.h:13,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/uprobes.h:49,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/mm_types.h:16,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/mmzone.h:22,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/gfp.h:7,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/umh.h:4,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/kmod.h:9,
                 from /usr/src/linux-headers-6.11-rc5-common/include/linux/module.h:17,
                 from /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctdm24xxp/base.c:43:
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctdm24xxp/base.c: In function 'wctdm_remove_one':
/usr/src/linux-headers-6.11-rc5-common/include/linux/workqueue.h:724:9: warning: call to '__warn_flushing_systemwide_wq' declared with attribute warning: Please avoid flushing system-wide workqueues. [-Wattribute-warning]
  724 |         __warn_flushing_systemwide_wq();                                \
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctdm24xxp/base.c:5999:9: note: in expansion of macro 'flush_scheduled_work'
 5999 |         flush_scheduled_work();
      |         ^~~~~~~~~~~~~~~~~~~~
/usr/src/linux-headers-6.11-rc5-common/include/linux/workqueue.h:724:9: warning: call to '__warn_flushing_systemwide_wq' declared with attribute warning: Please avoid flushing system-wide workqueues. [-Wattribute-warning]
  724 |         __warn_flushing_systemwide_wq();                                \
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctdm24xxp/base.c:5999:9: note: in expansion of macro 'flush_scheduled_work'
 5999 |         flush_scheduled_work();
      |         ^~~~~~~~~~~~~~~~~~~~
/usr/src/linux-headers-6.11-rc5-common/include/linux/workqueue.h:724:9: warning: call to '__warn_flushing_systemwide_wq' declared with attribute warning: Please avoid flushing system-wide workqueues. [-Wattribute-warning]
  724 |         __warn_flushing_systemwide_wq();                                \
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctdm24xxp/base.c:5999:9: note: in expansion of macro 'flush_scheduled_work'
 5999 |         flush_scheduled_work();
      |         ^~~~~~~~~~~~~~~~~~~~
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctdm24xxp/xhfc.o
  LD [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wctdm24xxp/wctdm24xxp.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wcte12xp/base.o
  LD [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wcte12xp/wcte12xp.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/voicebus/voicebus.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/voicebus/GpakCust.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/voicebus/GpakApi.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/voicebus/voicebus_net.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/voicebus/vpmoct.o
  LD [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/voicebus/dahdi_voicebus.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wcb4xxp/base.o
  LD [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/wcb4xxp/wcb4xxp.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-core.o
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.o
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.c:469:18: error: initialization of 'int (*)(struct device *, const struct device_driver *)' from incompatible pointer type 'int (*)(struct device *, struct device_driver *)' [-Wincompatible-pointer-types]
  469 |         .match = astribank_match,
      |                  ^~~~~~~~~~~~~~~
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.c:469:18: note: (near initialization for 'toplevel_bus_type.match')
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.c:825:18: error: initialization of 'int (*)(struct device *, const struct device_driver *)' from incompatible pointer type 'int (*)(struct device *, struct device_driver *)' [-Wincompatible-pointer-types]
  825 |         .match = xpd_match,
      |                  ^~~~~~~~~
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.c:825:18: note: (near initialization for 'xpd_type.match')
make[4]: *** [/usr/src/linux-headers-6.11-rc5-common/scripts/Makefile.build:249: /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.o] Error 1
make[3]: *** [/usr/src/linux-headers-6.11-rc5-common/scripts/Makefile.build:490: /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp] Error 2
make[2]: *** [/usr/src/linux-headers-6.11-rc5-common/Makefile:1950: /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi] Error 2
make[1]: *** [/usr/src/linux-headers-6.11-rc5-common/Makefile:236: __sub-make] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-6.11-rc5-amd64'
make: *** [Makefile:74: modules] Error 2
make -C /lib/modules/6.11-rc5-amd64/build KBUILD_EXTMOD=/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi DAHDI_INCLUDE=/var/lib/dkms/dahdi/3.1.0+git20230717/build/include DAHDI_MODULES_EXTRA=" " HOTPLUG_FIRMWARE=yes modules DAHDI_BUILD_ALL=m
make[1]: Entering directory '/usr/src/linux-headers-6.11-rc5-amd64'
  CC [M]  /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.o
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.c:469:18: error: initialization of 'int (*)(struct device *, const struct device_driver *)' from incompatible pointer type 'int (*)(struct device *, struct device_driver *)' [-Wincompatible-pointer-types]
  469 |         .match = astribank_match,
      |                  ^~~~~~~~~~~~~~~
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.c:469:18: note: (near initialization for 'toplevel_bus_type.match')
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.c:825:18: error: initialization of 'int (*)(struct device *, const struct device_driver *)' from incompatible pointer type 'int (*)(struct device *, struct device_driver *)' [-Wincompatible-pointer-types]
  825 |         .match = xpd_match,
      |                  ^~~~~~~~~
/var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.c:825:18: note: (near initialization for 'xpd_type.match')
make[4]: *** [/usr/src/linux-headers-6.11-rc5-common/scripts/Makefile.build:249: /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp/xbus-sysfs.o] Error 1
make[3]: *** [/usr/src/linux-headers-6.11-rc5-common/scripts/Makefile.build:490: /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi/xpp] Error 2
make[2]: *** [/usr/src/linux-headers-6.11-rc5-common/Makefile:1950: /var/lib/dkms/dahdi/3.1.0+git20230717/build/drivers/dahdi] Error 2
make[1]: *** [/usr/src/linux-headers-6.11-rc5-common/Makefile:236: __sub-make] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-6.11-rc5-amd64'
make: *** [Makefile:74: modules] Error 2

Andreas

Hi,

it seems to me that this is caused by a kernel interface change, see
https://github.com/torvalds/linux/commit/d69d804845985c29ab5be5a4b3b1f4787893daf8

It works for me with the following patch.

We believe that the bug you reported is fixed in the latest version of
dahdi-linux, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1081372@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Petter Reinholdtsen <pere@debian.org> (supplier of updated dahdi-linux package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Wed, 01 Jan 2025 14:34:16 +0100
Source: dahdi-linux
Architecture: source
Version: 1:3.1.0+git20230717~dfsg-8
Distribution: unstable
Urgency: medium
Maintainer: Debian VoIP Team <pkg-voip-maintainers@lists.alioth.debian.org>
Changed-By: Petter Reinholdtsen <pere@debian.org>
Closes: 1081372
Changes:
 dahdi-linux (1:3.1.0+git20230717~dfsg-8) unstable; urgency=medium
 .
   * Team upload.
 .
   * Added 1150-linux-fix-6.11.0.patch fixing linux 6.11.0 build problem
     (Closes: #1081372).
   * Added 1160-inline-first.patch fixing compiler warning in dkms package.
   * Added 1170-ascii-source.patch fixing lintian issue about non-ASCII/UTF-8
     character in file.
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