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authorMasahiro Yamada <yamada.masahiro@socionext.com>2019-09-09 20:04:08 +0900
committerJessica Yu <jeyu@kernel.org>2019-09-11 21:40:27 +0200
commitefd9763d88d120010dd239397a94af92b8a694df (patch)
tree14b0217d3ad6ad898d99afb4ac370e60968e55a6 /init
parentd189c2a4b6f0f4ae2529213c77723dd7bd95b048 (diff)
module: move CONFIG_UNUSED_SYMBOLS to the sub-menu of MODULES
When CONFIG_MODULES is disabled, CONFIG_UNUSED_SYMBOLS is pointless, thus it should be invisible. Instead of adding "depends on MODULES", I moved it to the sub-menu "Enable loadable module support", which is a better fit. I put it close to TRIM_UNUSED_KSYMS because it depends on !UNUSED_SYMBOLS. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Jessica Yu <jeyu@kernel.org>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig16
1 files changed, 16 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 6f0ec679b02d..11876e415db3 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -2130,6 +2130,22 @@ config MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS
If unsure, say N.
+config UNUSED_SYMBOLS
+ bool "Enable unused/obsolete exported symbols"
+ default y if X86
+ help
+ Unused but exported symbols make the kernel needlessly bigger. For
+ that reason most of these unused exports will soon be removed. This
+ option is provided temporarily to provide a transition period in case
+ some external kernel module needs one of these symbols anyway. If you
+ encounter such a case in your module, consider if you are actually
+ using the right API. (rationale: since nobody in the kernel is using
+ this in a module, there is a pretty good chance it's actually the
+ wrong interface to use). If you really need the symbol, please send a
+ mail to the linux kernel mailing list mentioning the symbol and why
+ you really need it, and what the merge plan to the mainline kernel for
+ your module is.
+
config TRIM_UNUSED_KSYMS
bool "Trim unused exported kernel symbols"
depends on !UNUSED_SYMBOLS

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