Re: [PATCH v2 2/2] x86/tsx: Get the tsx= command line parameter with early_param()

[Nikolay Borisov]

On 26.09.25 г. 21:01 ч., Petr Tesarik wrote:
> Use early_param() to get the value of the tsx= command line parameter.
> Although cmdline_find_option() 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). Prior to this patch, the kernel logged an error message
> and disabled TSX. With this patch, the parameter is ignored. The new
> behavior is consistent with other parameters, e.g. "tsx_async_abort".
>
> Signed-off-by: Petr Tesarik <ptesarik@xxxxxxxx>

LGTM, also could you include some rationale why early_param vs __setup 
for example, or arch_param_cb (which by the way has yet to find its 
first user).


Reviewed-by: Nikolay Borisov <nik.borisov@xxxxxxxx>