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kernel-dev: add disable config example

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Makes it more clear that the configuration fragment can also be used to
disable a configuration.

(From yocto-docs rev: a586a0ecacb4e40f4f3aeeb01dbefbdfcee8ae35)

Signed-off-by: Walter Werner SCHNEIDER <contact@schnwalter.eu>
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
(cherry picked from commit d38ef467081ee73bf23f240ace54b849a3a87612)
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Walter Werner SCHNEIDER 2025-11-03 19:04:10 +02:00 committed by Steve Sakoman
parent 938b1ad77a
commit 6906c4236f
1 changed files with 5 additions and 3 deletions
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8
documentation/kernel-dev/common.rst
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@ -1191,10 +1191,12 @@ appear in the ``.config`` file, which is in the :term:`Build Directory`.
It is simple to create a configuration fragment. One method is to use
shell commands. For example, issuing the following from the shell
creates a configuration fragment file named ``my_smp.cfg`` that enables
multi-processor support within the kernel::
creates a configuration fragment file named ``my_changes.cfg`` that enables
multi-processor support within the kernel and disables the FPGA
Configuration Framework::
$ echo "CONFIG_SMP=y" >> my_smp.cfg
$ echo "CONFIG_SMP=y" >> my_changes.cfg
$ echo "# CONFIG_FPGA is not set" >> my_changes.cfg
.. note::