The patch titled
docs: note about select in kconfig-language.txt
has been removed from the -mm tree. Its filename was
docs-note-about-select-in-kconfig-languagetxt.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: docs: note about select in kconfig-language.txt
From: Jarek Poplawski <jarkao2@xxxxx>
A warning note from Sam Ravnborg about kconfig's select evilness,
dependencies and the future (slightly corrected).
Signed-off-by: Jarek Poplawski <jarkao2@xxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Roman Zippel <zippel@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/kbuild/kconfig-language.txt | 9 +++++++++
1 files changed, 9 insertions(+)
diff -puN Documentation/kbuild/kconfig-language.txt~docs-note-about-select-in-kconfig-languagetxt Documentation/kbuild/kconfig-language.txt
--- a/Documentation/kbuild/kconfig-language.txt~docs-note-about-select-in-kconfig-languagetxt
+++ a/Documentation/kbuild/kconfig-language.txt
@@ -98,6 +98,15 @@ applicable everywhere (see syntax).
times, the limit is set to the largest selection.
Reverse dependencies can only be used with boolean or tristate
symbols.
+ Note:
+ select is evil.... select will by brute force set a symbol
+ equal to 'y' without visiting the dependencies. So abusing
+ select you are able to select a symbol FOO even if FOO depends
+ on BAR that is not set. In general use select only for
+ non-visible symbols (no promts anywhere) and for symbols with
+ no dependencies. That will limit the usefulness but on the
+ other hand avoid the illegal configurations all over. kconfig
+ should one day warn about such things.
- numerical ranges: "range" <symbol> <symbol> ["if" <expr>]
This allows to limit the range of possible input values for int
_
Patches currently in -mm which might be from jarkao2@xxxxx are
-
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