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authorJosh Triplett <josh@joshtriplett.org>2014-04-07 15:39:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-07 16:36:09 -0700
commit5d2acfc7b974bbd3858b4dd3f2cdc6362dd8843a (patch)
tree56f5180ef6aa210b9ef9d21dc489520f4b81866d /scripts/kconfig/confdata.c
parent527518f1a9ecc1eb17615e99e7b1233cf9322a49 (diff)
downloadlinux-5d2acfc7b974bbd3858b4dd3f2cdc6362dd8843a.tar.bz2
kconfig: make allnoconfig disable options behind EMBEDDED and EXPERT
"make allnoconfig" exists to ease testing of minimal configurations. Documentation/SubmitChecklist includes a note to test with allnoconfig. This helps catch missing dependencies on common-but-not-required functionality, which might otherwise go unnoticed. However, allnoconfig still leaves many symbols enabled, because they're hidden behind CONFIG_EMBEDDED or CONFIG_EXPERT. For instance, allnoconfig still has CONFIG_PRINTK and CONFIG_BLOCK enabled, so drivers don't typically get build-tested with those disabled. To address this, introduce a new Kconfig option "allnoconfig_y", used on symbols which only exist to hide other symbols. Set it on CONFIG_EMBEDDED (which then selects CONFIG_EXPERT). allnoconfig will then disable all the symbols hidden behind those. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts/kconfig/confdata.c')
-rw-r--r--scripts/kconfig/confdata.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 87f723804079..f88d90f20228 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -1178,7 +1178,10 @@ bool conf_set_all_new_symbols(enum conf_def_mode mode)
sym->def[S_DEF_USER].tri = mod;
break;
case def_no:
- sym->def[S_DEF_USER].tri = no;
+ if (sym->flags & SYMBOL_ALLNOCONFIG_Y)
+ sym->def[S_DEF_USER].tri = yes;
+ else
+ sym->def[S_DEF_USER].tri = no;
break;
case def_random:
sym->def[S_DEF_USER].tri = no;