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f9d2ee3f51
When building allmodconfig + ThinLTO with certain versions of clang, arch_set_bit() may not be inlined, resulting in a modpost warning: WARNING: modpost: vmlinux: section mismatch in reference: arch_set_bit+0x58 (section: .text.arch_set_bit) -> numa_nodes_parsed (section: .init.data) acpi_numa_rintc_affinity_init() calls arch_set_bit() via __node_set() with numa_nodes_parsed, which is marked as __initdata. If arch_set_bit() is not inlined, modpost will flag that it is being called with data that will be freed after init. As acpi_numa_rintc_affinity_init() is marked as __init, there is not actually a functional issue here. However, the bitop functions should be marked as __always_inline, so that they work consistently for init and non-init code, which the comment in include/linux/nodemask.h alludes to. This matches s390 and x86's implementations. Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
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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 reStructuredText 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.