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* [PATCH] xfs: avoid unused to_mp() function warning
@ 2019-09-24  8:53 Austin Kim
  2019-09-24  9:39 ` Brian Foster
  0 siblings, 1 reply; 2+ messages in thread
From: Austin Kim @ 2019-09-24  8:53 UTC (permalink / raw)
  To: darrick.wong; +Cc: linux-xfs, linux-kernel, austindh.kim

to_mp() was first introduced with the following commit:
'commit 801cc4e17a34c ("xfs: debug mode forced buffered write failure")'

But the user of to_mp() was removed by below commit:
'commit f8c47250ba46e ("xfs: convert drop_writes to use the errortag
mechanism")'

So kernel build with clang throws below warning message:

   fs/xfs/xfs_sysfs.c:72:1: warning: unused function 'to_mp' [-Wunused-function]
   to_mp(struct kobject *kobject)

Hence to_mp() might be removed safely to get rid of warning message.

Signed-off-by: Austin Kim <austindh.kim@gmail.com>
---
 fs/xfs/xfs_sysfs.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c
index ddd0bf7..f1bc88f 100644
--- a/fs/xfs/xfs_sysfs.c
+++ b/fs/xfs/xfs_sysfs.c
@@ -63,19 +63,6 @@ static const struct sysfs_ops xfs_sysfs_ops = {
 	.store = xfs_sysfs_object_store,
 };
 
-/*
- * xfs_mount kobject. The mp kobject also serves as the per-mount parent object
- * that is identified by the fsname under sysfs.
- */
-
-static inline struct xfs_mount *
-to_mp(struct kobject *kobject)
-{
-	struct xfs_kobj *kobj = to_kobj(kobject);
-
-	return container_of(kobj, struct xfs_mount, m_kobj);
-}
-
 static struct attribute *xfs_mp_attrs[] = {
 	NULL,
 };
-- 
2.6.2


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] xfs: avoid unused to_mp() function warning
  2019-09-24  8:53 [PATCH] xfs: avoid unused to_mp() function warning Austin Kim
@ 2019-09-24  9:39 ` Brian Foster
  0 siblings, 0 replies; 2+ messages in thread
From: Brian Foster @ 2019-09-24  9:39 UTC (permalink / raw)
  To: Austin Kim; +Cc: darrick.wong, linux-xfs, linux-kernel

On Tue, Sep 24, 2019 at 05:53:50PM +0900, Austin Kim wrote:
> to_mp() was first introduced with the following commit:
> 'commit 801cc4e17a34c ("xfs: debug mode forced buffered write failure")'
> 
> But the user of to_mp() was removed by below commit:
> 'commit f8c47250ba46e ("xfs: convert drop_writes to use the errortag
> mechanism")'
> 
> So kernel build with clang throws below warning message:
> 
>    fs/xfs/xfs_sysfs.c:72:1: warning: unused function 'to_mp' [-Wunused-function]
>    to_mp(struct kobject *kobject)
> 
> Hence to_mp() might be removed safely to get rid of warning message.
> 
> Signed-off-by: Austin Kim <austindh.kim@gmail.com>
> ---

Reviewed-by: Brian Foster <bfoster@redhat.com>

>  fs/xfs/xfs_sysfs.c | 13 -------------
>  1 file changed, 13 deletions(-)
> 
> diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c
> index ddd0bf7..f1bc88f 100644
> --- a/fs/xfs/xfs_sysfs.c
> +++ b/fs/xfs/xfs_sysfs.c
> @@ -63,19 +63,6 @@ static const struct sysfs_ops xfs_sysfs_ops = {
>  	.store = xfs_sysfs_object_store,
>  };
>  
> -/*
> - * xfs_mount kobject. The mp kobject also serves as the per-mount parent object
> - * that is identified by the fsname under sysfs.
> - */
> -
> -static inline struct xfs_mount *
> -to_mp(struct kobject *kobject)
> -{
> -	struct xfs_kobj *kobj = to_kobj(kobject);
> -
> -	return container_of(kobj, struct xfs_mount, m_kobj);
> -}
> -
>  static struct attribute *xfs_mp_attrs[] = {
>  	NULL,
>  };
> -- 
> 2.6.2
> 

^ permalink raw reply	[flat|nested] 2+ messages in thread

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