diff mbox series

[2/2] kconfig: fix incomplete type 'struct gstr' warning

Message ID 20200908221638.2782778-2-masahiroy@kernel.org (mailing list archive)
State New, archived
Headers show
Series [1/2] kconfig: qconf: use delete[] instead of delete to free array (again) | expand

Commit Message

Masahiro Yamada Sept. 8, 2020, 10:16 p.m. UTC 
"make HOSTCXX=clang++ xconfig" reports the following:

  HOSTCXX scripts/kconfig/qconf.o
In file included from scripts/kconfig/qconf.cc:23:
In file included from scripts/kconfig/lkc.h:15:
scripts/kconfig/lkc_proto.h:26:13: warning: 'get_relations_str' has C-linkage specified, but returns incomplete type 'struct gstr' which could be incompatible with C [-Wreturn-type-c-linkage]
struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head);
            ^

Currently, get_relations_str() is declared before the struct gstr
definition.

Move all declarations of menu.c functions below.

BTW, some are declared in lkc.h and some in lkc_proto.h, but the
difference is unclear. I guess some refactoring is needed.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

 scripts/kconfig/lkc.h       | 47 +++++++++++++++++++++++--------------
 scripts/kconfig/lkc_proto.h | 14 -----------
 2 files changed, 30 insertions(+), 31 deletions(-)

Comments

Boris Kolpackov Sept. 9, 2020, 2:09 p.m. UTC | #1 
Masahiro Yamada <masahiroy@kernel.org> writes:

> Currently, get_relations_str() is declared before the struct gstr
> definition.

Yes, I also ran into this while building the kconfig code with MSVC.
I just moved the struct gstr definition before lkc_proto.h #include
but your fix works just as well.

Acked-by: Boris Kolpackov <boris@codesynthesis.com>


> BTW, some are declared in lkc.h and some in lkc_proto.h, but the
> difference is unclear. I guess some refactoring is needed.

Yes, please. My (potentially incorrect) understanding is that lkc_proto.h
was for functions that are not (or should not be) used by clients but
should nevertheless have prototypes due to -Wmissing-prototypes. I,
however, believe this no longer holds and so would vote to merge
lkc_proto.h into lkc.h.
Masahiro Yamada Sept. 17, 2020, 4:07 p.m. UTC | #2 
On Wed, Sep 9, 2020 at 11:09 PM Boris Kolpackov <boris@codesynthesis.com> wrote:
>
> Masahiro Yamada <masahiroy@kernel.org> writes:
>
> > Currently, get_relations_str() is declared before the struct gstr
> > definition.
>
> Yes, I also ran into this while building the kconfig code with MSVC.
> I just moved the struct gstr definition before lkc_proto.h #include
> but your fix works just as well.
>
> Acked-by: Boris Kolpackov <boris@codesynthesis.com>
>
>
> > BTW, some are declared in lkc.h and some in lkc_proto.h, but the
> > difference is unclear. I guess some refactoring is needed.
>
> Yes, please. My (potentially incorrect) understanding is that lkc_proto.h
> was for functions that are not (or should not be) used by clients but
> should nevertheless have prototypes due to -Wmissing-prototypes. I,
> however, believe this no longer holds and so would vote to merge
> lkc_proto.h into lkc.h.
>
> --
> You received this message because you are subscribed to the Google Groups "Clang Built Linux" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to clang-built-linux+unsubscribe@googlegroups.com.
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Applied to linux-kbuild/fixes.
diff mbox series

Patch

diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index d4ca8297364f..8454649b17bd 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -66,23 +66,6 @@  static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out)
 		fprintf(stderr, "Error in writing or end of file.\n");
 }
 
-/* menu.c */
-void _menu_init(void);
-void menu_warn(struct menu *menu, const char *fmt, ...);
-struct menu *menu_add_menu(void);
-void menu_end_menu(void);
-void menu_add_entry(struct symbol *sym);
-void menu_add_dep(struct expr *dep);
-void menu_add_visibility(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);
-void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep);
-void menu_add_option_modules(void);
-void menu_add_option_defconfig_list(void);
-void menu_add_option_allnoconfig_y(void);
-void menu_finalize(struct menu *parent);
-void menu_set_type(int type);
-
 /* util.c */
 struct file *file_lookup(const char *name);
 void *xmalloc(size_t size);
@@ -109,6 +92,36 @@  void str_append(struct gstr *gs, const char *s);
 void str_printf(struct gstr *gs, const char *fmt, ...);
 const char *str_get(struct gstr *gs);
 
+/* menu.c */
+void _menu_init(void);
+void menu_warn(struct menu *menu, const char *fmt, ...);
+struct menu *menu_add_menu(void);
+void menu_end_menu(void);
+void menu_add_entry(struct symbol *sym);
+void menu_add_dep(struct expr *dep);
+void menu_add_visibility(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);
+void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep);
+void menu_add_option_modules(void);
+void menu_add_option_defconfig_list(void);
+void menu_add_option_allnoconfig_y(void);
+void menu_finalize(struct menu *parent);
+void menu_set_type(int type);
+
+extern struct menu rootmenu;
+
+bool menu_is_empty(struct menu *menu);
+bool menu_is_visible(struct menu *menu);
+bool menu_has_prompt(struct menu *menu);
+const char *menu_get_prompt(struct menu *menu);
+struct menu *menu_get_root_menu(struct menu *menu);
+struct menu *menu_get_parent_menu(struct menu *menu);
+bool menu_has_help(struct menu *menu);
+const char *menu_get_help(struct menu *menu);
+struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head);
+void menu_get_ext_help(struct menu *menu, struct gstr *help);
+
 /* symbol.c */
 void sym_clear_all_valid(void);
 struct symbol *sym_choice_default(struct symbol *sym);
diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h
index f9ab98238aef..9e81be33c40f 100644
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -12,20 +12,6 @@  bool conf_get_changed(void);
 void conf_set_changed_callback(void (*fn)(void));
 void conf_set_message_callback(void (*fn)(const char *s));
 
-/* menu.c */
-extern struct menu rootmenu;
-
-bool menu_is_empty(struct menu *menu);
-bool menu_is_visible(struct menu *menu);
-bool menu_has_prompt(struct menu *menu);
-const char * menu_get_prompt(struct menu *menu);
-struct menu * menu_get_root_menu(struct menu *menu);
-struct menu * menu_get_parent_menu(struct menu *menu);
-bool menu_has_help(struct menu *menu);
-const char * menu_get_help(struct menu *menu);
-struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head);
-void menu_get_ext_help(struct menu *menu, struct gstr *help);
-
 /* symbol.c */
 extern struct symbol * symbol_hash[SYMBOL_HASHSIZE];