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![]() When neither VIRTIO_PCI_LIB nor VIRTIO are enabled, but the alibaba vdpa driver is, the kernel runs into a link error because the legacy virtio module never gets built: x86_64-linux-ld: drivers/vdpa/alibaba/eni_vdpa.o: in function `eni_vdpa_set_features': eni_vdpa.c:(.text+0x23f): undefined reference to `vp_legacy_set_features' x86_64-linux-ld: drivers/vdpa/alibaba/eni_vdpa.o: in function `eni_vdpa_set_vq_state': eni_vdpa.c:(.text+0x2fe): undefined reference to `vp_legacy_get_queue_enable' x86_64-linux-ld: drivers/vdpa/alibaba/eni_vdpa.o: in function `eni_vdpa_set_vq_address': eni_vdpa.c:(.text+0x376): undefined reference to `vp_legacy_set_queue_address' x86_64-linux-ld: drivers/vdpa/alibaba/eni_vdpa.o: in function `eni_vdpa_set_vq_ready': eni_vdpa.c:(.text+0x3b4): undefined reference to `vp_legacy_set_queue_address' x86_64-linux-ld: drivers/vdpa/alibaba/eni_vdpa.o: in function `eni_vdpa_free_irq': eni_vdpa.c:(.text+0x460): undefined reference to `vp_legacy_queue_vector' x86_64-linux-ld: eni_vdpa.c:(.text+0x4b7): undefined reference to `vp_legacy_config_vector' x86_64-linux-ld: drivers/vdpa/alibaba/eni_vdpa.o: in function `eni_vdpa_reset': When VIRTIO_PCI_LIB was added, it was correctly added to drivers/Makefile as well, but for the legacy module, this is missing. Solve this by always entering drivers/virtio during the build and letting its Makefile take care of the individual options, rather than having a separate line for each sub-option. Fixes: |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README |
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.