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Message-Id: <20070831102527.09fb42c0.rdunlap@xenotime.net>
Date: Fri, 31 Aug 2007 10:25:27 -0700
From: Randy Dunlap <rdunlap@...otime.net>
To: Simon Arlott <simon@...e.lp0.eu>, sam@...nborg.org
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
"Robert P. J. Day" <rpjday@...dspring.com>,
Randy Dunlap <rdunlap@...otime.net>,
Stefan Richter <stefanr@...6.in-berlin.de>,
Adrian Bunk <bunk@...sta.de>, Jeff Garzik <jeff@...zik.org>,
Gabriel C <crazy@...pmylinux.org>, netdev@...r.kernel.org
Subject: Re: [PATCH] net/, drivers/net/ , missing EXPERIMENTAL in menus
On Thu, 19 Jul 2007 23:05:57 +0100 Simon Arlott wrote:
> On 19/07/07 17:19, Robert P. J. Day wrote:
> > On Thu, 19 Jul 2007, Randy Dunlap wrote:
> >> I think that Stefan means a patch to the kconfig source code,
> >> not the the Kconfig files. Good luck. I'd still like to see it.
> >
> > yes, i understand what he wanted now. as a first step (that
> > theoretically shouldn't change any behaviour), i'd patch the Kconfig
> > structure to add a new attribute ("maturity") which would be allowed
> > to be set to *exactly one* of a pre-defined set of values (say,
> > OBSOLETE, DEPRECATED, EXPERIMENTAL, and STILLBLEEDING). and that's
> > it, nothing more.
> >
> > don't try to do anything with any of that just yet, just add the
> > infrastructure to support the (optional) association of a maturity
> > level with a config option. that's step one.
>
> What about something like this? I'm not sure if the addition to sym_init
> is desirable... I also had to prefix _ to the name for now otherwise it
> conflicts badly with the current symbols. It probably should stop
> "depends on _BROKEN" etc. too.
Hi Simon,
(sorry for the delay)
I like this patch very much... I just can't get it to build (on
2.6.23-rc4).
Thanks.
> ---
> diff --git a/init/Kconfig b/init/Kconfig
> diff --git a/net/Kconfig b/net/Kconfig
> index cdba08c..5e2f4db 100644
> --- a/net/Kconfig
> +++ b/net/Kconfig
> @@ -6,6 +6,7 @@ menu "Networking"
>
> config NET
> bool "Networking support"
> + maturity _BROKEN
> ---help---
> Unless you really know what you are doing, you should say Y here.
> The reason is that some programs need kernel networking support even
> diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
> diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
> index fb2bb30..1dea08e 100644
> --- a/scripts/kconfig/Makefile
> +++ b/scripts/kconfig/Makefile
> @@ -256,7 +256,7 @@ $(obj)/lkc_defs.h: $(src)/lkc_proto.h
> # The following requires flex/bison/gperf
> # By default we use the _shipped versions, uncomment the following line if
> # you are modifying the flex/bison src.
> -# LKC_GENPARSER := 1
> +LKC_GENPARSER := 1
>
> ifdef LKC_GENPARSER
>
> diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
> index 1199baf..cc9be0e 100644
> --- a/scripts/kconfig/conf.c
> +++ b/scripts/kconfig/conf.c
> @@ -211,6 +211,22 @@ static int conf_sym(struct menu *menu)
>
> while (1) {
> printf("%*s%s ", indent - 1, "", menu->prompt->text);
> + switch (sym->maturity) {
> + case M_EXPERIMENTAL:
> + printf("(EXPERIMENTAL) ");
> + break;
> + case M_DEPRECATED:
> + printf("(DEPRECATED) ");
> + break;
> + case M_OBSOLETE:
> + printf("(OBSOLETE) ");
> + break;
> + case M_BROKEN:
> + printf("(BROKEN) ");
> + break;
> + default:
> + break;
> + }
> if (sym->name)
> printf("(%s) ", sym->name);
> type = sym_get_type(sym);
> diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
> index 6084525..a22b6c1 100644
> --- a/scripts/kconfig/expr.h
> +++ b/scripts/kconfig/expr.h
> @@ -60,7 +60,11 @@ struct symbol_value {
> };
>
> enum symbol_type {
> - S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
> + S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_MATURITY,
> S_OTHER
> +};
> +
> +enum maturity_level {
> + M_NONE, M_EXPERIMENTAL, M_DEPRECATED, M_OBSOLETE, M_BROKEN
> };
>
> enum {
> @@ -72,6 +76,7 @@ struct symbol {
> struct symbol *next;
> char *name;
> char *help;
> + enum maturity_level maturity;
> enum symbol_type type;
> struct symbol_value curr;
> struct symbol_value def[4];
> diff --git a/scripts/kconfig/lex.zconf.c_shipped
> b/scripts/kconfig/lex.zconf.c_shipped
> diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
> index 8a07ee4..9add1cd 100644
> --- a/scripts/kconfig/lkc.h
> +++ b/scripts/kconfig/lkc.h
> @@ -79,6 +79,7 @@ void menu_end_menu(void);
> void menu_add_entry(struct symbol *sym);
> void menu_end_entry(void);
> void menu_add_dep(struct expr *dep);
> +void menu_set_maturity(struct symbol *sym);
> struct property *menu_add_prop(enum prop_type type, char *prompt,
> struct expr *expr, struct expr *dep);
> struct property *menu_add_prompt(enum prop_type type, char *prompt,
> struct expr *dep);
> void menu_add_expr(enum prop_type type, struct expr *expr, struct expr
> *dep);
> diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
> index d0e4fa5..eaf199b 100644
> --- a/scripts/kconfig/mconf.c
> +++ b/scripts/kconfig/mconf.c
> @@ -238,6 +238,7 @@ search_help[] = N_(
> "Result:\n"
> "-----------------------------------------------------------------\n"
> "Symbol: FOO [=m]\n"
> + "Maturity: FOO\n"
> "Prompt: Foo bus is used to drive the bar HW\n"
> "Defined at drivers/pci/Kconfig:47\n"
> "Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
> @@ -359,6 +360,27 @@ static void get_symbol_str(struct gstr *r, struct
> symbol *sym)
>
> str_printf(r, "Symbol: %s [=%s]\n", sym->name,
> sym_get_string_value(sym));
> +
> + if (sym->maturity != M_NONE) {
> + str_append(r, "Maturity: ");
> + switch (sym->maturity) {
> + case M_EXPERIMENTAL:
> + str_append(r, "EXPERIMENTAL\n");
> + break;
> + case M_DEPRECATED:
> + str_append(r, "DEPRECATED\n");
> + break;
> + case M_OBSOLETE:
> + str_append(r, "OBSOLETE\n");
> + break;
> + case M_BROKEN:
> + str_append(r, "BROKEN\n");
> + break;
> + default:
> + break;
> + }
> + }
> +
> for_all_prompts(sym, prop)
> get_prompt_str(r, prop);
> hit = false;
> diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
> index f14aeac..3e37e5b 100644
> --- a/scripts/kconfig/menu.c
> +++ b/scripts/kconfig/menu.c
> @@ -104,6 +104,15 @@ void menu_add_dep(struct expr *dep)
> current_entry->dep = expr_alloc_and(current_entry->dep,
> menu_check_dep(dep));
> }
>
> +void menu_set_maturity(struct symbol *sym)
> +{
> + if (sym->type != S_MATURITY) {
> + zconf_error("'%s' is an invalid maturity level", sym->name);
> + } else {
> + current_entry->sym->maturity = sym->maturity;
> + }
> +}
> +
> void menu_set_type(int type)
> {
> struct symbol *sym = current_entry->sym;
> diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
> index c35dcc5..280ee8f 100644
> --- a/scripts/kconfig/symbol.c
> +++ b/scripts/kconfig/symbol.c
> @@ -72,6 +72,22 @@ void sym_init(void)
> sym->type = S_STRING;
> sym->flags |= SYMBOL_AUTO;
> sym_add_default(sym, uts.release);
> +
> + sym = sym_lookup("_EXPERIMENTAL", 0);
> + sym->type = S_MATURITY;
> + sym->maturity = M_EXPERIMENTAL;
> +
> + sym = sym_lookup("_DEPRECATED", 0);
> + sym->type = S_MATURITY;
> + sym->maturity = M_DEPRECATED;
> +
> + sym = sym_lookup("_OBSOLETE", 0);
> + sym->type = S_MATURITY;
> + sym->maturity = M_OBSOLETE;
> +
> + sym = sym_lookup("_BROKEN", 0);
> + sym->type = S_MATURITY;
> + sym->maturity = M_BROKEN;
> }
>
> enum symbol_type sym_get_type(struct symbol *sym)
> @@ -100,6 +116,8 @@ const char *sym_type_name(enum symbol_type type)
> return "hex";
> case S_STRING:
> return "string";
> + case S_MATURITY:
> + return "maturity";
> case S_UNKNOWN:
> return "unknown";
> case S_OTHER:
> @@ -679,6 +697,7 @@ struct symbol *sym_lookup(const char *name, int isconst)
> memset(symbol, 0, sizeof(*symbol));
> symbol->name = new_name;
> symbol->type = S_UNKNOWN;
> + symbol->maturity = M_NONE;
> if (isconst)
> symbol->flags |= SYMBOL_CONST;
>
> diff --git a/scripts/kconfig/zconf.gperf b/scripts/kconfig/zconf.gperf
> index 9b44c80..756d559 100644
> --- a/scripts/kconfig/zconf.gperf
> +++ b/scripts/kconfig/zconf.gperf
> @@ -25,6 +25,7 @@ endif, T_ENDIF, TF_COMMAND
> depends, T_DEPENDS, TF_COMMAND
> requires, T_REQUIRES, TF_COMMAND
> optional, T_OPTIONAL, TF_COMMAND
> +maturity, T_MATURITY, TF_COMMAND
> default, T_DEFAULT, TF_COMMAND, S_UNKNOWN
> prompt, T_PROMPT, TF_COMMAND
> tristate, T_TYPE, TF_COMMAND, S_TRISTATE
> diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
> index 92eb02b..1b47966 100644
> --- a/scripts/kconfig/zconf.y
> +++ b/scripts/kconfig/zconf.y
> @@ -66,6 +66,7 @@ static struct menu *current_menu, *current_entry;
> %token <id>T_DEPENDS
> %token <id>T_REQUIRES
> %token <id>T_OPTIONAL
> +%token <id>T_MATURITY
> %token <id>T_PROMPT
> %token <id>T_TYPE
> %token <id>T_DEFAULT
> @@ -120,7 +121,7 @@ stmt_list:
> ;
>
> option_name:
> - T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE |
> T_DEFAULT
> + T_DEPENDS | T_MATURITY | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL |
> T_RANGE | T_DEFAULT
> ;
>
> common_stmt:
> @@ -177,6 +178,7 @@ config_option_list:
> | config_option_list config_option
> | config_option_list symbol_option
> | config_option_list depends
> + | config_option_list maturity
> | config_option_list help
> | config_option_list option_error
> | config_option_list T_EOL
> @@ -269,6 +271,7 @@ choice_option_list:
> /* empty */
> | choice_option_list choice_option
> | choice_option_list depends
> + | choice_option_list maturity
> | choice_option_list help
> | choice_option_list T_EOL
> | choice_option_list option_error
> @@ -349,7 +352,7 @@ menu: T_MENU prompt T_EOL
> printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
> };
>
> -menu_entry: menu depends_list
> +menu_entry: menu maturity_set_opt depends_list
> {
> $$ = menu_add_menu();
> };
> @@ -430,6 +433,19 @@ depends: T_DEPENDS T_ON expr T_EOL
> printd(DEBUG_PARSE, "%s:%d:requires\n", zconf_curname(), zconf_lineno());
> };
>
> +/* maturity setting */
> +
> +maturity_set_opt:
> + /* empty */
> + | maturity
> +;
> +
> +maturity: T_MATURITY symbol T_EOL
> +{
> + menu_set_maturity($2);
> + printd(DEBUG_PARSE, "%s:%d:maturity\n", zconf_curname(), zconf_lineno());
> +};
> +
> /* prompt statement */
>
> prompt_stmt_opt:
> @@ -519,6 +535,7 @@ const char *zconf_tokenname(int token)
> case T_IF: return "if";
> case T_ENDIF: return "endif";
> case T_DEPENDS: return "depends";
> + case T_MATURITY: return "maturity";
> }
> return "<token>";
> }
> @@ -615,6 +632,9 @@ void print_symbol(FILE *out, struct menu *menu)
> case S_HEX:
> fputs(" hex\n", out);
> break;
> + case S_MATURITY:
> + fputs(" maturity\n", out);
> + break;
> default:
> fputs(" ???\n", out);
> break;
>
>
> --
---
~Randy
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