init: fix in-place parameter modification regression
Before commit 026cee00 ("params: <level>_initcall-like kernel parameters") the __setup parameter parsing code could modify parameter in the static_command_line buffer and such modifications were kept. After that commit such modifications are destroyed during per-initcall level parameter parsing because the same static_command_line buffer is used and only parameters for appropriate initcall level are parsed. That change broke at least parsing "ubd" parameter in the ubd driver when the COW file is used. Now the separate buffer is used for per-initcall parameter parsing. Signed-off-by: NKrzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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