Bug 1873797 - In kernel 5.8.4-200.fc32.x86_64 missing module serial_ir
Summary: In kernel 5.8.4-200.fc32.x86_64 missing module serial_ir
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 32
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-08-30 08:37 UTC by Oleg Kochkin
Modified: 2020-11-03 18:18 UTC (History)
21 users (show)

Fixed In Version:
Doc Type: ---
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Type: Bug

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Description Oleg Kochkin 2020-08-30 08:37:07 UTC 
Missing module serial_ir in kernel 5.8.4-200.fc32.x86_64

Everything worked in the previous version of the kernel (5.7.17-200.fc32.x86_64)

Reproduce this issue:

# modprobe serial_ir
modprobe: FATAL: Module serial_ir not found in directory /lib/modules/5.8.4-200.fc32.x86_64

Workaround: Boot with kernel 5.7.17-200.fc32.x86_64
Comment 1 Oleg Kochkin 2020-09-08 11:10:33 UTC 
The same problem with the kernel-5.8.6-201.fc32.x86_64
Comment 2 Oleg Kochkin 2020-09-11 13:10:13 UTC 
The same problem with the kernel-5.8.7-200.fc32.x86_64
Comment 3 Dennis Wagelaar 2020-11-02 22:40:00 UTC 
Kernel .config file now contains:

...
CONFIG_IR_WINBOND_CIR=m
CONFIG_IR_IGORPLUGUSB=m
CONFIG_IR_IGUANA=m
CONFIG_IR_TTUSBIR=m
CONFIG_RC_LOOPBACK=m
# CONFIG_IR_SERIAL is not set
# CONFIG_IR_SIR is not set
CONFIG_RC_XBOX_DVD=m
CONFIG_CEC_CORE=m
CONFIG_CEC_NOTIFIER=y
CONFIG_MEDIA_CEC_RC=y
CONFIG_MEDIA_CEC_SUPPORT=y
CONFIG_CEC_SECO=m
...

CONFIG_IR_SERIAL must be set to 'm' to have the homebrew IR driver for LIRC back. Why was this removed?
Comment 4 Dennis Wagelaar 2020-11-03 16:34:30 UTC 
The Fedora kernel git repo has this module disabled for the Fedora 31, 32, 33 branches, and enabled again for master: https://src.fedoraproject.org/rpms/kernel/c/8bf7e7fde6b9176ccaac91a0c95464f326d8a008

" kernel-5.9.0-0.rc7.20200930gitfb0155a09b02.21
    
    * Wed Sep 30 2020 Fedora Kernel Team <kernel-team@fedoraproject.org> [5.9.0-0.rc7.20200930gitfb0155a09b02.21]
    - Merge ark-patches
    Resolves: rhbz#
    
    Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>"
Comment 5 Dennis Wagelaar 2020-11-03 16:36:52 UTC 
@jforbes@redhat.com can you backport the above change to Fedora 32, 33?
Comment 6 Dennis Wagelaar 2020-11-03 18:18:25 UTC 
People can compile the kernel module out-of-tree for the moment: https://github.com/dwagelaar/kernel-serial-ir
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