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From: Al Viro <viro@zeniv.linux.org.uk>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-fsdevel@vger.kernel.org, Mark Brown <broonie@kernel.org>
Subject: [PATCH 03/11] regmap: get rid of redundant debugfs_file_{get,put}()
Date: Wed, 2 Jul 2025 22:16:02 +0100	[thread overview]
Message-ID: <20250702211602.GC3406663@ZenIV> (raw)
In-Reply-To: <20250702211408.GA3406663@ZenIV>

pointless in ->read()/->write() of file_operations used only via
debugfs_create_file()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/base/regmap/regmap-debugfs.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index fb84cda92a75..c9b4c04b1cf6 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -470,10 +470,6 @@ static ssize_t regmap_cache_only_write_file(struct file *file,
 	if (err)
 		return count;
 
-	err = debugfs_file_get(file->f_path.dentry);
-	if (err)
-		return err;
-
 	map->lock(map->lock_arg);
 
 	if (new_val && !map->cache_only) {
@@ -486,7 +482,6 @@ static ssize_t regmap_cache_only_write_file(struct file *file,
 	map->cache_only = new_val;
 
 	map->unlock(map->lock_arg);
-	debugfs_file_put(file->f_path.dentry);
 
 	if (require_sync) {
 		err = regcache_sync(map);
@@ -517,10 +512,6 @@ static ssize_t regmap_cache_bypass_write_file(struct file *file,
 	if (err)
 		return count;
 
-	err = debugfs_file_get(file->f_path.dentry);
-	if (err)
-		return err;
-
 	map->lock(map->lock_arg);
 
 	if (new_val && !map->cache_bypass) {
@@ -532,7 +523,6 @@ static ssize_t regmap_cache_bypass_write_file(struct file *file,
 	map->cache_bypass = new_val;
 
 	map->unlock(map->lock_arg);
-	debugfs_file_put(file->f_path.dentry);
 
 	return count;
 }
-- 
2.39.5


  parent reply	other threads:[~2025-07-02 21:16 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-02 21:13 [PATCHES] assorted debugfs stuff Al Viro
2025-07-02 21:14 ` [PATCH 01/11] zynqmp: don't bother with debugfs_file_{get,put}() in proxied fops Al Viro
2025-07-02 21:15   ` [PATCH 02/11] hfi1: get rid of redundant debugfs_file_{get,put}() Al Viro
2025-07-02 21:16   ` Al Viro [this message]
2025-07-03 11:10     ` [PATCH 03/11] regmap: " Mark Brown
2025-07-02 21:16   ` [PATCH 04/11] resctrl: get rid of pointless debugfs_file_{get,put}() Al Viro
2025-07-02 21:24     ` Luck, Tony
2025-07-02 23:45       ` Reinette Chatre
2025-07-03  0:24         ` Al Viro
2025-07-03  5:40           ` Greg Kroah-Hartman
2025-07-03 15:10             ` Reinette Chatre
2025-07-02 21:17   ` [PATCH 05/11] vmscan: don't bother with debugfs_real_fops() Al Viro
2025-07-03 11:51     ` Matthew Wilcox
2025-07-04  4:07       ` Al Viro
2025-07-02 21:22   ` [PATCH 06/11] netronome: " Al Viro
2025-07-03  7:11     ` Louis Peens
2025-07-02 21:24   ` [PATCH 07/11] debugfs: split short and full proxy wrappers, kill debugfs_real_fops() Al Viro
2025-07-02 21:25   ` [PATCH 08/11] fix tt_command_write() Al Viro
2025-07-03 11:14     ` Rafael J. Wysocki
2025-07-02 21:26   ` [PATCH 09/11] debugfs_get_aux(): allow storing non-const void * Al Viro
2025-07-02 21:28   ` [PATCH 10/11] blk-mq-debugfs: use debugfs_get_aux() Al Viro
2025-07-02 21:29   ` [PATCH 11/11] lpfc: don't use file->f_path.dentry for comparisons Al Viro
     [not found]     ` <b3ff59d4-c6c3-4b48-97e3-d32e98c12de7@broadcom.com>
     [not found]       ` <CAAmqgVMmgW4PWy289P4a8N0FSZA+cHybNkKbLzFx_qBQtu8ZHA@mail.gmail.com>
2025-07-03 20:37         ` Justin Tee
2025-07-04  4:25           ` Al Viro
2025-07-04 18:33             ` Justin Tee
2025-07-04 20:10               ` Al Viro
2025-07-07 19:29                 ` Justin Tee
2025-07-08  2:57                   ` Al Viro
2025-07-08 17:17                     ` Justin Tee
2025-07-02 23:19   ` (subset) [PATCH 01/11] zynqmp: don't bother with debugfs_file_{get,put}() in proxied fops Jens Axboe
2025-07-03  0:23     ` Al Viro
2025-07-03  0:56       ` Jens Axboe
2025-07-03 11:37       ` Greg Kroah-Hartman
2025-07-03 15:10         ` Al Viro
2025-07-04 15:34   ` Mark Brown
2025-07-09 11:35 ` [PATCHES] assorted debugfs stuff Greg Kroah-Hartman

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