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[ Upstream commit e837b59f8b411b5baf5e3de7a5aea10b1c545a63 ] It is currently possible to configure a kernel with all Intel SoC configs as loadable modules, but the board config as built-in. This causes a link failure in the reference to the snd_soc_sof.ko module: x86_64-linux-ld: sound/soc/intel/boards/sof_rt5682.o: in function `sof_rt5682_hw_params': sof_rt5682.c:(.text+0x1f9): undefined reference to `sof_dai_get_mclk' x86_64-linux-ld: sof_rt5682.c:(.text+0x234): undefined reference to `sof_dai_get_bclk' x86_64-linux-ld: sound/soc/intel/boards/sof_rt5682.o: in function `sof_rt5682_codec_init': sof_rt5682.c:(.text+0x3e0): undefined reference to `sof_dai_get_mclk' x86_64-linux-ld: sound/soc/intel/boards/sof_cs42l42.o: in function `sof_cs42l42_hw_params': sof_cs42l42.c:(.text+0x2a): undefined reference to `sof_dai_get_bclk' x86_64-linux-ld: sound/soc/intel/boards/sof_nau8825.o: in function `sof_nau8825_hw_params': sof_nau8825.c:(.text+0x7f): undefined reference to `sof_dai_get_bclk' x86_64-linux-ld: sound/soc/intel/boards/sof_da7219.o: in function `da7219_codec_init': sof_da7219.c:(.text+0xbf): undefined reference to `sof_dai_get_mclk' x86_64-linux-ld: sound/soc/intel/boards/sof_maxim_common.o: in function `max_98373_hw_params': sof_maxim_common.c:(.text+0x6f9): undefined reference to `sof_dai_get_tdm_slots' x86_64-linux-ld: sound/soc/intel/boards/sof_realtek_common.o: in function `rt1015_hw_params': sof_realtek_common.c:(.text+0x54c): undefined reference to `sof_dai_get_bclk' x86_64-linux-ld: sound/soc/intel/boards/sof_realtek_common.o: in function `rt1308_hw_params': sof_realtek_common.c:(.text+0x702): undefined reference to `sof_dai_get_mclk' x86_64-linux-ld: sound/soc/intel/boards/sof_cirrus_common.o: in function `cs35l41_hw_params': sof_cirrus_common.c:(.text+0x2f): undefined reference to `sof_dai_get_bclk' Add an optional dependency on SND_SOC_SOF_INTEL_COMMON, to ensure that whenever the SOF support is in a loadable module, none of the board code can be built-in. This may be be a little heavy-handed, but I also don't see a reason why one would want the boards to be built-in but not the SoC, so it shouldn't actually cause any usability problems. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://patch.msgid.link/20250709145626.64125-1-arnd@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.