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ccde40812a
Gal Pressman says: ==================== Misc vlan cleanups This patch series addresses compilation issues with objtool when VLAN support is disabled (CONFIG_VLAN_8021Q=n) and makes related improvements to the VLAN infrastructure. When CONFIG_VLAN_8021Q=n, CONFIG_OBJTOOL=y, and CONFIG_OBJTOOL_WERROR=y, the following compilation error occurs: drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.o: error: objtool: parse_mirred.isra.0+0x370: mlx5e_tc_act_vlan_add_push_action() missing __noreturn in .c/.h or NORETURN() in noreturns.h The error occurs because objtool cannot determine that unreachable BUG() calls in VLAN code paths are actually dead code when VLAN support is disabled. First patch makes is_vlan_dev() a stub when VLAN is not configured, allows compile-out of VLAN-dependent dead code paths and resolves the objtool compilation error. Second patch replaces BUG() calls with WARN_ON_ONCE(), as the usage of BUG() should be avoided. Third patch uses the "kernel" way of testing whether an option is configured as builtin/module, instead of open-coding it. v2: https://lore.kernel.org/20250610072611.1647593-1-gal@nvidia.com/ ==================== Link: https://patch.msgid.link/20250616132626.1749331-1-gal@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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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.