From 801690caf1894d4f8b1277ca9f5dcf0bcf9b3f58 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 12 Aug 2010 09:11:51 +0200 Subject: kconfig: fix savedefconfig for tristate choices savedefconfig failed to save choice symbols equal to 'y' for tristate choices. This resulted in this value being lost. In particular is fixes an issue where make ARCH=avr32 atngw100_defconfig make ARCH=avr32 savedefconfig cp defconfig arch/avr32/configs/atngw100_defconfig make ARCH=avr32 atngw100_defconfig diff -u .config .config.old failed to produce an identical .config. Signed-off-by: Sam Ravnborg Signed-off-by: Michal Marek --- scripts/kconfig/confdata.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'scripts/kconfig/confdata.c') diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index f81f263b64f2..e5d66e4f1484 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -497,7 +497,7 @@ int conf_write_defconfig(const char *filename) /* * If symbol is a choice value and equals to the * default for a choice - skip. - * But only if value equal to "y". + * But only if value is bool and equal to "y" . */ if (sym_is_choice_value(sym)) { struct symbol *cs; @@ -506,9 +506,8 @@ int conf_write_defconfig(const char *filename) cs = prop_get_symbol(sym_get_choice_prop(sym)); ds = sym_choice_default(cs); if (sym == ds) { - if ((sym->type == S_BOOLEAN || - sym->type == S_TRISTATE) && - sym_get_tristate_value(sym) == yes) + if ((sym->type == S_BOOLEAN) && + sym_get_tristate_value(sym) == yes) goto next_menu; } } -- cgit v1.2.2 From a64b44ead002ba15fdf841106a6fd344b8dd46d8 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 12 Aug 2010 09:11:52 +0200 Subject: kconfig: fix tristate choice with minimal config MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If a minimal config did not specify the value of all choice values, the resulting configuration could have wrong values. Consider following example: config M def_bool y option modules choice prompt "choice list" config A tristate "a" config B tristate "b" endchoice With a defconfig like this: CONFIG_M=y CONFIG_A=y The resulting configuration would have CONFIG_A=m which was unexpected. The problem was not not all choice values were set and thus kconfig calculated a wrong value. The fix is to set all choice values when we read a defconfig files. conf_set_all_new_symbols() is refactored such that random choice values are now handled by a dedicated function. And new choice values are set by set_all_choice_values(). This was not the minimal fix, but the fix that resulted in the most readable code. Signed-off-by: Sam Ravnborg Reported-by: Arve Hjønnevåg Tested-by: Arve Hjønnevåg Signed-off-by: Michal Marek --- scripts/kconfig/confdata.c | 102 +++++++++++++++++++++++++++++---------------- 1 file changed, 67 insertions(+), 35 deletions(-) (limited to 'scripts/kconfig/confdata.c') diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index e5d66e4f1484..ac13f0ff8e81 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -918,13 +918,73 @@ void conf_set_changed_callback(void (*fn)(void)) conf_changed_callback = fn; } +static void randomize_choice_values(struct symbol *csym) +{ + struct property *prop; + struct symbol *sym; + struct expr *e; + int cnt, def; -void conf_set_all_new_symbols(enum conf_def_mode mode) + /* + * If choice is mod then we may have more items slected + * and if no then no-one. + * In both cases stop. + */ + if (csym->curr.tri != yes) + return; + + prop = sym_get_choice_prop(csym); + + /* count entries in choice block */ + cnt = 0; + expr_list_for_each_sym(prop->expr, e, sym) + cnt++; + + /* + * find a random value and set it to yes, + * set the rest to no so we have only one set + */ + def = (rand() % cnt); + + cnt = 0; + expr_list_for_each_sym(prop->expr, e, sym) { + if (def == cnt++) { + sym->def[S_DEF_USER].tri = yes; + csym->def[S_DEF_USER].val = sym; + } + else { + sym->def[S_DEF_USER].tri = no; + } + } + csym->flags |= SYMBOL_DEF_USER; + /* clear VALID to get value calculated */ + csym->flags &= ~(SYMBOL_VALID); +} + +static void set_all_choice_values(struct symbol *csym) { - struct symbol *sym, *csym; struct property *prop; + struct symbol *sym; struct expr *e; - int i, cnt, def; + + prop = sym_get_choice_prop(csym); + + /* + * Set all non-assinged choice values to no + */ + expr_list_for_each_sym(prop->expr, e, sym) { + if (!sym_has_value(sym)) + sym->def[S_DEF_USER].tri = no; + } + csym->flags |= SYMBOL_DEF_USER; + /* clear VALID to get value calculated */ + csym->flags &= ~(SYMBOL_VALID); +} + +void conf_set_all_new_symbols(enum conf_def_mode mode) +{ + struct symbol *sym, *csym; + int i, cnt; for_all_symbols(i, sym) { if (sym_has_value(sym)) @@ -960,8 +1020,6 @@ void conf_set_all_new_symbols(enum conf_def_mode mode) sym_clear_all_valid(); - if (mode != def_random) - return; /* * We have different type of choice blocks. * If curr.tri equal to mod then we can select several @@ -976,35 +1034,9 @@ void conf_set_all_new_symbols(enum conf_def_mode mode) continue; sym_calc_value(csym); - - if (csym->curr.tri != yes) - continue; - - prop = sym_get_choice_prop(csym); - - /* count entries in choice block */ - cnt = 0; - expr_list_for_each_sym(prop->expr, e, sym) - cnt++; - - /* - * find a random value and set it to yes, - * set the rest to no so we have only one set - */ - def = (rand() % cnt); - - cnt = 0; - expr_list_for_each_sym(prop->expr, e, sym) { - if (def == cnt++) { - sym->def[S_DEF_USER].tri = yes; - csym->def[S_DEF_USER].val = sym; - } - else { - sym->def[S_DEF_USER].tri = no; - } - } - csym->flags |= SYMBOL_DEF_USER; - /* clear VALID to get value calculated */ - csym->flags &= ~(SYMBOL_VALID); + if (mode == def_random) + randomize_choice_values(csym); + else + set_all_choice_values(csym); } } -- cgit v1.2.2 From bf5e327a300a9ac959a89440e7c67dc89f3bd804 Mon Sep 17 00:00:00 2001 From: Jean Sacren Date: Wed, 4 Aug 2010 16:01:02 -0600 Subject: kconfig: Fix warning: ignoring return value of 'fwrite' This fix facilitates fwrite() in both confdata.c and expr.c, either it succeeds in writing, or an error occurs, or the end of file is reached. Signed-off-by: Jean Sacren Signed-off-by: Michal Marek --- scripts/kconfig/confdata.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'scripts/kconfig/confdata.c') diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index ac13f0ff8e81..c39327e60ea4 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -412,7 +412,7 @@ static void conf_write_string(bool headerfile, const char *name, while (1) { l = strcspn(str, "\"\\"); if (l) { - fwrite(str, l, 1, out); + xfwrite(str, l, 1, out); str += l; } if (!*str) -- cgit v1.2.2