On Sun, May 1, 2022 at 1:42 AM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote: > > Currently, mod->gpl_compatible is tristate; it is set to -1 by default, > then to 1 or 0 when MODULE_LICENSE() is found. > > Maybe, -1 was chosen to represent the 'unknown' license, but it is not > useful. > > The current code: > > if (!mod->gpl_compatible) > check_for_gpl_usage(exp->export, basename, exp->name); > > ... only cares whether gpl_compatible is zero or not. > > Change it to a bool type with the initial value 'true', which has no > functional change. > > The default value should be 'true' instead of 'false'. > > Since commit 1d6cd3929360 ("modpost: turn missing MODULE_LICENSE() into > error"), unknown module license is an error. > > The error message, "missing MODULE_LICENSE()" is enough to explain the > issue. It is not sensible to show another message, "GPL-incompatible > module ... uses GPL-only symbol". > > Add comments to explain this. > > While I was here, I renamed gpl_compatible to is_gpl_compatible for > clarification, and also slightly refactored the code. > > Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx> Thanks for the patch! Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> -- Thanks, ~Nick Desaulniers