linux-kernel - [PATCH] kobject: move EXPORT_SYMBOL() macros next to corresponding definitions

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Message-ID: <20150810195143.GP31816@HEDWIG.INI.CMU.EDU>
Date:	Mon, 10 Aug 2015 15:51:43 -0400
From:	Gabriel Somlo <somlo@....edu>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, kernelnewbies@...nelnewbies.org
Subject: [PATCH] kobject: move EXPORT_SYMBOL() macros next to corresponding
 definitions

Move EXPORT_SYMBOL() macros in kobject.c from the end of the file
next to the function definitions to which they belong.

Signed-off-by: Gabriel Somlo <somlo@....edu>
---

On Mon, Aug 10, 2015 at 11:54:00AM -0700, Greg KH wrote:
> > > >  
> > > >  EXPORT_SYMBOL(kset_register);
> > > >  EXPORT_SYMBOL(kset_unregister);
> > > > +EXPORT_SYMBOL(kset_find_obj);
> > > 
> > > checkpatch doesn't like this for obvious reasons :)
> > 
> > When I run checkpatch on this one, it comes back fine. Could you
> > please elaborate ?
> > 
> > [staging]$ scripts/checkpatch.pl
> > 0002-kobject-export-kset_find_obj-to-be-used-from-modules.patch 
> > total: 0 errors, 0 warnings, 4 lines checked
> > 
> > 0002-kobject-export-kset_find_obj-to-be-used-from-modules.patch has no
> > obvious style problems and is ready for submission.
> 
> EXPORT_SYMBOL() should be below the function definition itself, not at
> the bottom of the file.  Odd that checkpatch doesn't catch this when
> done in this manner, it will if you run it on the whole file after your
> patch is applied (along with the existing problems.)

BTW, when I did that, I was merely trying to immitate what was already in
lib/kobject.c. So here's making sure the next person won't get confused
the same way I did... :)

Thanks much,
 --Gabriel

 lib/kobject.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/lib/kobject.c b/lib/kobject.c
index 3e3a5c3..0554077 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -568,6 +568,7 @@ void kobject_del(struct kobject *kobj)
 	kobject_put(kobj->parent);
 	kobj->parent = NULL;
 }
+EXPORT_SYMBOL(kobject_del);
 
 /**
  * kobject_get - increment refcount for object.
@@ -584,6 +585,7 @@ struct kobject *kobject_get(struct kobject *kobj)
 	}
 	return kobj;
 }
+EXPORT_SYMBOL(kobject_get);
 
 static struct kobject * __must_check kobject_get_unless_zero(struct kobject *kobj)
 {
@@ -675,6 +677,7 @@ void kobject_put(struct kobject *kobj)
 		kref_put(&kobj->kref, kobject_release);
 	}
 }
+EXPORT_SYMBOL(kobject_put);
 
 static void dynamic_kobj_release(struct kobject *kobj)
 {
@@ -803,6 +806,7 @@ int kset_register(struct kset *k)
 	kobject_uevent(&k->kobj, KOBJ_ADD);
 	return 0;
 }
+EXPORT_SYMBOL(kset_register);
 
 /**
  * kset_unregister - remove a kset.
@@ -815,6 +819,7 @@ void kset_unregister(struct kset *k)
 	kobject_del(&k->kobj);
 	kobject_put(&k->kobj);
 }
+EXPORT_SYMBOL(kset_unregister);
 
 /**
  * kset_find_obj - search for object in kset.
@@ -1051,10 +1056,3 @@ void kobj_ns_drop(enum kobj_ns_type type, void *ns)
 		kobj_ns_ops_tbl[type]->drop_ns(ns);
 	spin_unlock(&kobj_ns_type_lock);
 }
-
-EXPORT_SYMBOL(kobject_get);
-EXPORT_SYMBOL(kobject_put);
-EXPORT_SYMBOL(kobject_del);
-
-EXPORT_SYMBOL(kset_register);
-EXPORT_SYMBOL(kset_unregister);
-- 
2.4.3

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