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authorYann E. MORIN <yann.morin.1998@free.fr>2013-04-29 00:36:38 +0400
committerYann E. MORIN <yann.morin.1998@free.fr>2013-06-24 22:03:30 +0400
commit3b9a19e08960e5cdad5253998637653e592a3c29 (patch)
tree2293b53b7f29ff79f67fa7245ea027a36bda91fc /scripts/kconfig/lkc.h
parenta1ce636f560336ba007bfabb15b167ff31b592cf (diff)
downloadlinux-3b9a19e08960e5cdad5253998637653e592a3c29.tar.xz
kconfig: loop as long as we changed some symbols in randconfig
Because of choice-in-a-choice constructs, it can happen that not all symbols are assigned a value during randconfig, leading in rare cases to this situation: ---8<--- choice-in-choice.in choice bool "A/B/C" config A bool "A" config B bool "B" if B choice bool "E/F" config E bool "E" config F bool "F" endchoice endif # B config C bool "C" endchoice ---8<--- $ ./scripts/kconfig/conf --randconfig choice-in-choice.in [--SNIP--] $ ./scripts/kconfig/conf --silentoldconfig choice-in-choice.in </dev/null [--SNIP--] A/B/C 1. A (A) > 2. B (B) 3. C (C) choice[1-3]: 2 E/F > 1. E (E) (NEW) 2. F (F) (NEW) choice[1-2]: aborted! Console input/output is redirected. Run 'make oldconfig' to update configuration. Fix this by looping in randconfig for as long as some symbol gets assigned a value. Note: this was spotted with the USB EHCI Debug Device Gadget (USB_G_DBGP), which uses this choice-in-a-choice construct, and exhibits this problem. The example above is just a stripped-down minimalist test-case. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Diffstat (limited to 'scripts/kconfig/lkc.h')
-rw-r--r--scripts/kconfig/lkc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index 0c8d4191ca87..09f4edfdc911 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -86,7 +86,7 @@ const char *conf_get_autoconfig_name(void);
char *conf_get_default_confname(void);
void sym_set_change_count(int count);
void sym_add_change_count(int count);
-void conf_set_all_new_symbols(enum conf_def_mode mode);
+bool conf_set_all_new_symbols(enum conf_def_mode mode);
void set_all_choice_values(struct symbol *csym);
struct conf_printer {