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authorYann E. MORIN <yann.morin.1998@free.fr>2013-08-11 16:07:50 +0200
committerYann E. MORIN <yann.morin.1998@free.fr>2013-08-15 22:56:08 +0200
commit11097a0367e48954ecf616f9b0df48d86835dd0d (patch)
treea795726b62f68894fad0cc251e43d404f82d4aff /scripts
parent04b19b773a60d201bc1b187ba7a7c86dc237a27b (diff)
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modules: do not depend on kconfig to set 'modules' option to symbol MODULES
Currently, the MODULES symbol is special-cased in different places in the kconfig language. For example, if no symbol is defined to enable tristates, then kconfig looks up for a symbol named 'MODULES', and forces the 'modules' option onto that symbol. This causes problems as such: - since MODULES is special-cased, reading the configuration with KCONFIG_ALLCONFIG set will forcibly set MODULES to be 'valid' (ie. it has a valid value), when no such value was previously set. So MODULES defaults to 'n' unless it is present in KCONFIG_ALLCONFIG - other third-party projects may decide that 'MODULES' plays a different role for them This has been exposed by cset #cfa98f2e: kconfig: do not override symbols already set and reported by Stephen in: http://marc.info/?l=linux-next&m=137592137915234&w=2 As suggested by Sam, we explicitly define the MODULES symbol to be the tristate-enabler. This will allow us to drop special-casing of MODULES in the kconfig language, later. (Note: this patch is not a fix to Stephen's issue, just a first step). Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: yann.morin.1998@free.fr Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Kevin Hilman <khilman@linaro.org> Cc: sedat.dilek@gmail.com Cc: Theodore Ts'o <tytso@mit.edu>
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