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Incoming Qualcomm changes for GENI, i2c [1], and cmd-db [2] are enabled with COMPILE_TEST in drivers/soc/qcom. For this to work, the Makefile in that directory has to be included unconditionally, rather than only if ARCH_QCOM is enabled. Example of the errors seen on allmodconfig with the GENI, i2c, and cmd-db patches applied: Kernel: arch/x86/boot/bzImage is ready (#1) ERROR: "geni_se_select_mode" [drivers/tty/serial/qcom_geni_serial.ko] undefined! ERROR: "geni_se_init" [drivers/tty/serial/qcom_geni_serial.ko] undefined! ERROR: "geni_se_config_packing" [drivers/tty/serial/qcom_geni_serial.ko] undefined! ERROR: "geni_se_resources_on" [drivers/tty/serial/qcom_geni_serial.ko] undefined! ERROR: "geni_se_resources_off" [drivers/tty/serial/qcom_geni_serial.ko] undefined! ERROR: "geni_se_tx_dma_unprep" [drivers/i2c/busses/i2c-qcom-geni.ko] undefined! ERROR: "geni_se_tx_dma_prep" [drivers/i2c/busses/i2c-qcom-geni.ko] undefined! ERROR: "geni_se_rx_dma_unprep" [drivers/i2c/busses/i2c-qcom-geni.ko] undefined! ERROR: "geni_se_rx_dma_prep" [drivers/i2c/busses/i2c-qcom-geni.ko] undefined! ERROR: "geni_se_select_mode" [drivers/i2c/busses/i2c-qcom-geni.ko] undefined! ERROR: "geni_se_config_packing" [drivers/i2c/busses/i2c-qcom-geni.ko] undefined! ERROR: "geni_se_init" [drivers/i2c/busses/i2c-qcom-geni.ko] undefined! ERROR: "geni_se_resources_off" [drivers/i2c/busses/i2c-qcom-geni.ko] undefined! ERROR: "geni_se_resources_on" [drivers/i2c/busses/i2c-qcom-geni.ko] undefined! make[1]: *** [scripts/Makefile.modpost:92: __modpost] Error 1 make: *** [Makefile:1237: modules] Error 2 [1] https://patchwork.ozlabs.org/cover/893437/ [2] https://lkml.org/lkml/2018/4/10/714 Signed-off-by: Guenter Roeck <groeck@chromium.org> Signed-off-by: Evan Green <evgreen@chromium.org> Signed-off-by: Andy Gross <andy.gross@linaro.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.