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| author | Tejun Heo <tj@kernel.org> | 2013-09-11 23:19:13 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-26 15:33:18 -0700 |
| commit | 388975cccaaf11abd47525f664c76891c440481a (patch) | |
| tree | 597308874997808e7621ab4a56f0b1fd201e8639 /drivers | |
| parent | cb26a311578e67769e92a39a0a63476533cb7e12 (diff) | |
| download | blackbird-op-linux-388975cccaaf11abd47525f664c76891c440481a.tar.gz blackbird-op-linux-388975cccaaf11abd47525f664c76891c440481a.zip | |
sysfs: clean up sysfs_get_dirent()
The pre-existing sysfs interfaces which take explicit namespace
argument are weird in that they place the optional @ns in front of
@name which is contrary to the established convention. For example,
we end up forcing vast majority of sysfs_get_dirent() users to do
sysfs_get_dirent(parent, NULL, name), which is silly and error-prone
especially as @ns and @name may be interchanged without causing
compilation warning.
This renames sysfs_get_dirent() to sysfs_get_dirent_ns() and swap the
positions of @name and @ns, and sysfs_get_dirent() is now a wrapper
around sysfs_get_dirent_ns(). This makes confusions a lot less
likely.
There are other interfaces which take @ns before @name. They'll be
updated by following patches.
This patch doesn't introduce any functional changes.
v2: EXPORT_SYMBOL_GPL() wasn't updated leading to undefined symbol
error on module builds. Reported by build test robot. Fixed.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kay Sievers <kay@vrfy.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 2 | ||||
| -rw-r--r-- | drivers/md/bitmap.c | 4 | ||||
| -rw-r--r-- | drivers/md/md.c | 2 | ||||
| -rw-r--r-- | drivers/md/md.h | 2 |
4 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 86ef3461ec06..a094356020a6 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -408,7 +408,7 @@ static int gpio_setup_irq(struct gpio_desc *desc, struct device *dev, IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING; if (!value_sd) { - value_sd = sysfs_get_dirent(dev->kobj.sd, NULL, "value"); + value_sd = sysfs_get_dirent(dev->kobj.sd, "value"); if (!value_sd) { ret = -ENODEV; goto err_out; diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index a7fd82133b12..12dc29ba7399 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1654,9 +1654,9 @@ int bitmap_create(struct mddev *mddev) bitmap->mddev = mddev; if (mddev->kobj.sd) - bm = sysfs_get_dirent(mddev->kobj.sd, NULL, "bitmap"); + bm = sysfs_get_dirent(mddev->kobj.sd, "bitmap"); if (bm) { - bitmap->sysfs_can_clear = sysfs_get_dirent(bm, NULL, "can_clear"); + bitmap->sysfs_can_clear = sysfs_get_dirent(bm, "can_clear"); sysfs_put(bm); } else bitmap->sysfs_can_clear = NULL; diff --git a/drivers/md/md.c b/drivers/md/md.c index adf4d7e1d5e1..8a0d7625681c 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3555,7 +3555,7 @@ level_store(struct mddev *mddev, const char *buf, size_t len) printk(KERN_WARNING "md: cannot register extra attributes for %s\n", mdname(mddev)); - mddev->sysfs_action = sysfs_get_dirent(mddev->kobj.sd, NULL, "sync_action"); + mddev->sysfs_action = sysfs_get_dirent(mddev->kobj.sd, "sync_action"); } if (mddev->pers->sync_request != NULL && pers->sync_request == NULL) { diff --git a/drivers/md/md.h b/drivers/md/md.h index 608050c43f17..b0051f2fbc0c 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -501,7 +501,7 @@ extern struct attribute_group md_bitmap_group; static inline struct sysfs_dirent *sysfs_get_dirent_safe(struct sysfs_dirent *sd, char *name) { if (sd) - return sysfs_get_dirent(sd, NULL, name); + return sysfs_get_dirent(sd, name); return sd; } static inline void sysfs_notify_dirent_safe(struct sysfs_dirent *sd) |
