diff mbox series

[2/2] modpost: file2alias: check prototype of handler

Message ID 1542860922-9730-2-git-send-email-yamada.masahiro@socionext.com
State Accepted
Commit f880eea68fe593342fa6e09be9bb661f3c297aec
Headers show
Series [1/2] modpost: file2alias: go back to simple devtable lookup | expand

Commit Message

Masahiro Yamada Nov. 22, 2018, 4:28 a.m. UTC
Use specific prototype instead of an opaque pointer so that the
compiler can catch incompatible pointer type.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

---

 scripts/mod/file2alias.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

-- 
2.7.4

Comments

Mathieu Malaterre Nov. 26, 2018, 10:40 a.m. UTC | #1
On Thu, Nov 22, 2018 at 5:29 AM Masahiro Yamada
<yamada.masahiro@socionext.com> wrote:
>

> Use specific prototype instead of an opaque pointer so that the

> compiler can catch incompatible pointer type.

>

> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

> ---

>

>  scripts/mod/file2alias.c | 7 +++----

>  1 file changed, 3 insertions(+), 4 deletions(-)

>

> diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c

> index 7e4aede..a37af7d 100644

> --- a/scripts/mod/file2alias.c

> +++ b/scripts/mod/file2alias.c

> @@ -47,7 +47,7 @@ typedef struct {

>  struct devtable {

>         const char *device_id; /* name of table, __mod_<name>__*_device_table. */

>         unsigned long id_size;

> -       void *function;

> +       int (*do_entry)(const char *filename, void *symval, char *alias);

>  };


It makes sense to do this cleanup.

Reviewed-by: Mathieu Malaterre <malat@debian.org>



>  /* Define a variable f that holds the value of field f of struct devid

> @@ -1299,12 +1299,11 @@ static bool sym_is(const char *name, unsigned namelen, const char *symbol)

>  static void do_table(void *symval, unsigned long size,

>                      unsigned long id_size,

>                      const char *device_id,

> -                    void *function,

> +                    int (*do_entry)(const char *filename, void *symval, char *alias),

>                      struct module *mod)

>  {

>         unsigned int i;

>         char alias[500];

> -       int (*do_entry)(const char *, void *entry, char *alias) = function;

>

>         device_id_check(mod->name, device_id, size, id_size, symval);

>         /* Leave last one: it's the terminator. */

> @@ -1420,7 +1419,7 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,

>

>                         if (sym_is(name, namelen, p->device_id)) {

>                                 do_table(symval, sym->st_size, p->id_size,

> -                                        p->device_id, p->function, mod);

> +                                        p->device_id, p->do_entry, mod);

>                                 break;

>                         }

>                 }

> --

> 2.7.4

>
Masahiro Yamada Nov. 26, 2018, 2:53 p.m. UTC | #2
On Fri, Nov 23, 2018 at 1:51 AM Masahiro Yamada
<yamada.masahiro@socionext.com> wrote:
>

> Use specific prototype instead of an opaque pointer so that the

> compiler can catch incompatible pointer type.

>

> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

> ---


Applied to linux-kbuild.



>  scripts/mod/file2alias.c | 7 +++----

>  1 file changed, 3 insertions(+), 4 deletions(-)

>

> diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c

> index 7e4aede..a37af7d 100644

> --- a/scripts/mod/file2alias.c

> +++ b/scripts/mod/file2alias.c

> @@ -47,7 +47,7 @@ typedef struct {

>  struct devtable {

>         const char *device_id; /* name of table, __mod_<name>__*_device_table. */

>         unsigned long id_size;

> -       void *function;

> +       int (*do_entry)(const char *filename, void *symval, char *alias);

>  };

>

>  /* Define a variable f that holds the value of field f of struct devid

> @@ -1299,12 +1299,11 @@ static bool sym_is(const char *name, unsigned namelen, const char *symbol)

>  static void do_table(void *symval, unsigned long size,

>                      unsigned long id_size,

>                      const char *device_id,

> -                    void *function,

> +                    int (*do_entry)(const char *filename, void *symval, char *alias),

>                      struct module *mod)

>  {

>         unsigned int i;

>         char alias[500];

> -       int (*do_entry)(const char *, void *entry, char *alias) = function;

>

>         device_id_check(mod->name, device_id, size, id_size, symval);

>         /* Leave last one: it's the terminator. */

> @@ -1420,7 +1419,7 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,

>

>                         if (sym_is(name, namelen, p->device_id)) {

>                                 do_table(symval, sym->st_size, p->id_size,

> -                                        p->device_id, p->function, mod);

> +                                        p->device_id, p->do_entry, mod);

>                                 break;

>                         }

>                 }

> --

> 2.7.4

>



-- 
Best Regards
Masahiro Yamada
diff mbox series

Patch

diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 7e4aede..a37af7d 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -47,7 +47,7 @@  typedef struct {
 struct devtable {
 	const char *device_id; /* name of table, __mod_<name>__*_device_table. */
 	unsigned long id_size;
-	void *function;
+	int (*do_entry)(const char *filename, void *symval, char *alias);
 };
 
 /* Define a variable f that holds the value of field f of struct devid
@@ -1299,12 +1299,11 @@  static bool sym_is(const char *name, unsigned namelen, const char *symbol)
 static void do_table(void *symval, unsigned long size,
 		     unsigned long id_size,
 		     const char *device_id,
-		     void *function,
+		     int (*do_entry)(const char *filename, void *symval, char *alias),
 		     struct module *mod)
 {
 	unsigned int i;
 	char alias[500];
-	int (*do_entry)(const char *, void *entry, char *alias) = function;
 
 	device_id_check(mod->name, device_id, size, id_size, symval);
 	/* Leave last one: it's the terminator. */
@@ -1420,7 +1419,7 @@  void handle_moddevtable(struct module *mod, struct elf_info *info,
 
 			if (sym_is(name, namelen, p->device_id)) {
 				do_table(symval, sym->st_size, p->id_size,
-					 p->device_id, p->function, mod);
+					 p->device_id, p->do_entry, mod);
 				break;
 			}
 		}