On Thu, 11 Mar 2021 09:03:21 -0500 Steven Rostedt <rost...@goodmis.org> wrote:
> On Thu, 11 Mar 2021 16:52:13 +0800 > Cao jin <jojin...@gmail.com> wrote: > > > Parameter "cmdline" has no use, drop it. > > Actually, I wonder if it should be using that instead of boot_command_line, > as the cmdline passed in is boot_command_line plus anything that the > architecture itself modified. > > Masami? I think the policy is that boot_command_line is the reference command line string passed from user, and the passed cmdline is modified by architecutre code. But those are usually same in most cases, because boot_command_line was also modified in setup_arch(). For example, x86 setup_arch() overwrites/modifies boot_command_line itself by builtin_cmdline, and copy boot_command_line into the passed cmdline. Thank you, -- Masami Hiramatsu <mhira...@kernel.org>
