Nicolas Pitre 9059a3493e kconfig: fix relational operators for bool and tristate symbols ... Since commit 31847b67be ("kconfig: allow use of relations other than (in)equality") it is possible to use relational operators in Kconfig statements. However, those operators give unexpected results when applied to bool/tristate values: (n < y) = y (correct) (m < y) = y (correct) (n < m) = n (wrong) This happens because relational operators process bool and tristate symbols as strings and m sorts before n. It makes little sense to do a lexicographical compare on bool and tristate values though. Documentation/kbuild/kconfig-language.txt states that expression can have a value of 'n', 'm' or 'y' (or 0, 1, 2 respectively for calculations). Let's make it so for relational comparisons with bool/tristate expressions as well and document them. If at least one symbol is an actual string then the lexicographical compare works just as before. Signed-off-by: Nicolas Pitre <nico@linaro.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>		2018-01-06 02:31:23 +09:00
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00-INDEX	Documentation: headers_install.txt is part of kbuild	2014-08-05 16:08:11 +02:00
Kconfig.recursion-issue-01	kbuild: document recursive dependency limitation / resolution	2015-10-08 15:36:16 +02:00
Kconfig.recursion-issue-02	kbuild: document recursive dependency limitation / resolution	2015-10-08 15:36:16 +02:00
Kconfig.select-break	kbuild: document recursive dependency limitation / resolution	2015-10-08 15:36:16 +02:00
headers_install.txt	kbuild : Fix documentation of INSTALL_HDR_PATH	2015-06-22 09:56:07 -06:00
kbuild.txt	kbuild: handle libs-y archives separately from built-in.o archives	2017-06-30 09:03:03 +09:00
kconfig-language.txt	kconfig: fix relational operators for bool and tristate symbols	2018-01-06 02:31:23 +09:00
kconfig.txt	Documentation/kbuild/kconfig.txt: 'make listnewconfig' replaces: yes "" | make oldconfig	2013-10-08 23:51:50 +02:00
makefiles.txt	DeviceTree for 4.15:	2017-11-14 18:25:40 -08:00
modules.txt	kbuild: Fix a typo in documentation	2014-06-10 14:14:29 +02:00