mirror of
https://github.com/torvalds/linux.git
synced 2025-12-07 20:06:24 +00:00
e9cc99142a
Use early_param() to get the value of the tsx= command line parameter. It is an early parameter, because it must be parsed before tsx_init(), which is called long before kernel_init(), where normal parameters are parsed. Although cmdline_find_option() from tsx_init() works fine, the option is later reported as unknown and passed to user space. The latter is not a real issue, but the former is confusing and makes people wonder if the tsx= parameter had any effect and double-check for typos unnecessarily. The behavior changes slightly if "tsx" is given without any argument (which is invalid syntax). Until now, the kernel logged an error message and disabled TSX. Now, the kernel still issues a warning (Malformed early option 'tsx'), but TSX state is unchanged. The new behavior is consistent with other parameters, e.g. "tsx_async_abort". [ bp: Fixup minor formatting request during review. ] Suggested-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Signed-off-by: Petr Tesarik <ptesarik@suse.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/all/cover.1758906115.git.ptesarik@suse.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 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.