When FW_LOADER is disabled, cxl fails to link: arm-linux-gnueabi-ld: drivers/cxl/core/memdev.o: in function `cxl_memdev_setup_fw_upload': memdev.c:(.text+0x90e): undefined reference to `firmware_upload_register' memdev.c:(.text+0x93c): undefined reference to `firmware_upload_unregister' In order to use the firmware_upload_register() function, both FW_LOADER and FW_UPLOAD have to be enabled, which is a bit confusing. In addition, the dependency is on the wrong symbol, as the caller is part of the cxl_core.ko module, not the cxl_mem.ko module. Fixes: 9521875bbe005 ("cxl: add a firmware update mechanism using the sysfs firmware loader") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20230703112928.332321-1-arnd@kernel.org Reviewed-by: Xiao Yang <yangx.jy@fujitsu.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
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.
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