[PATCH v10 2/9] test: add new function to get current file-prefix arg

[Stephen Hemminger]

On Fri, 2 Jan 2026 12:50:14 +0000
Marat Khalili <marat.khalili at huawei.com> wrote:

> > +/* Return a --file-prefix=XXXX argument or NULL */
> > +static inline const char *
> > +file_prefix_arg(void)
> > +{
> > +	static char prefix[NAME_MAX + sizeof("--file-prefix=")];
> > +	char tmp[NAME_MAX];  
> 
> Can current prefix change? Can we verify that it is filled already and return immediately?

file prefix comes from command line and does not change.
Given that it is used to setup memory and ipc it really can't change at runtime.