linux-kernel - [PATCH] module: include internal.h in module/dups.c

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Date:   Tue,  2 May 2023 20:43:44 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     torvalds@...ux-foundation.org, patches@...ts.linux.dev,
        linux-modules@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Arnd Bergmann <arnd@...db.de>, kernel test robot <lkp@...el.com>,
        Luis Chamberlain <mcgrof@...nel.org>
Subject: [PATCH] module: include internal.h in module/dups.c

From: Arnd Bergmann <arnd@...db.de>

Two newly introduced functions are declared in a header that is not
included before the definition, causing a warning with sparse or
'make W=1':

kernel/module/dups.c:118:6: error: no previous prototype for 'kmod_dup_request_exists_wait' [-Werror=missing-prototypes]
  118 | bool kmod_dup_request_exists_wait(char *module_name, bool wait, int *dup_ret)
      |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/module/dups.c:220:6: error: no previous prototype for 'kmod_dup_request_announce' [-Werror=missing-prototypes]
  220 | void kmod_dup_request_announce(char *module_name, int ret)
      |      ^~~~~~~~~~~~~~~~~~~~~~~~~

Add an explicit include to ensure the prototypes match.

Fixes: 8660484ed1cf ("module: add debugging auto-load duplicate module support")
Reported-by: kernel test robot <lkp@...el.com>
Link: https://lore.kernel.org/oe-kbuild-all/202304141440.DYO4NAzp-lkp@intel.com/
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
---

 kernel/module/dups.c | 2 ++
 1 file changed, 2 insertions(+)

Linus, only one fix so far for modules so might as well send this as a patch.

diff --git a/kernel/module/dups.c b/kernel/module/dups.c
index aa8e1361fdb5..f3d7ea1e96d8 100644
--- a/kernel/module/dups.c
+++ b/kernel/module/dups.c
@@ -32,6 +32,8 @@
 #include <linux/async.h>
 #include <linux/uaccess.h>
 
+#include "internal.h"
+
 #undef MODULE_PARAM_PREFIX
 #define MODULE_PARAM_PREFIX "module."
 static bool enable_dups_trace = IS_ENABLED(CONFIG_MODULE_DEBUG_AUTOLOAD_DUPS_TRACE);
-- 
2.39.2