@@ -430,21 +430,19 @@ static const struct seq_operations snic_trc_sops = {
DEFINE_SEQ_ATTRIBUTE(snic_trc);
+#define TRC_ENABLE_FILE "tracing_enable"
+#define TRC_FILE "trace"
/*
* snic_trc_debugfs_init : creates trace/tracing_enable files for trace
* under debugfs
*/
void snic_trc_debugfs_init(void)
{
- snic_glob->trc.trc_enable = debugfs_create_bool("tracing_enable",
- S_IFREG | S_IRUGO | S_IWUSR,
- snic_glob->trc_root,
- &snic_glob->trc.enable);
-
- snic_glob->trc.trc_file = debugfs_create_file("trace",
- S_IFREG | S_IRUGO | S_IWUSR,
- snic_glob->trc_root, NULL,
- &snic_trc_fops);
+ debugfs_create_bool(TRC_ENABLE_FILE, S_IFREG | S_IRUGO | S_IWUSR,
+ snic_glob->trc_root, &snic_glob->trc.enable);
+
+ debugfs_create_file(TRC_FILE, S_IFREG | S_IRUGO | S_IWUSR,
+ snic_glob->trc_root, NULL, &snic_trc_fops);
}
/*
@@ -453,9 +451,6 @@ void snic_trc_debugfs_init(void)
void
snic_trc_debugfs_term(void)
{
- debugfs_remove(snic_glob->trc.trc_file);
- snic_glob->trc.trc_file = NULL;
-
- debugfs_remove(snic_glob->trc.trc_enable);
- snic_glob->trc.trc_enable = NULL;
+ debugfs_remove(debugfs_lookup(TRC_FILE, snic_glob->trc_root));
+ debugfs_remove(debugfs_lookup(TRC_ENABLE_FILE, snic_glob->trc_root));
}
@@ -46,9 +46,6 @@ struct snic_trc {
u32 rd_idx;
u32 wr_idx;
bool enable; /* Control Variable for Tracing */
-
- struct dentry *trc_enable; /* debugfs file object */
- struct dentry *trc_file;
};
int snic_trc_init(void);
This is a note to let you know that I've just added the patch titled scsi: snic: debugfs: remove local storage of debugfs files to my driver-core git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git in the driver-core-testing branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will be merged to the driver-core-next branch sometime soon, after it passes testing, and the merge window is open. If you have any questions about this process, please let me know. From 1be4ec2456a7d110092ad8cc918eef75b878ec4e Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Date: Tue, 18 May 2021 18:16:25 +0200 Subject: scsi: snic: debugfs: remove local storage of debugfs files There is no need to keep the dentry around for the debugfs trace files, as we can just look it up when we want to remove it later on. Simplify the structure by removing the dentries and relying on debugfs to find the dentry to remove when we want to. By doing this change, we remove the last in-kernel user that was storing the result of debugfs_create_bool(), so that api can be cleaned up. Cc: Karan Tilak Kumar <kartilak@cisco.com> Cc: Sesidhar Baddela <sebaddel@cisco.com> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: <linux-scsi@vger.kernel.org> Link: https://lore.kernel.org/r/20210518161625.3696996-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/scsi/snic/snic_debugfs.c | 23 +++++++++-------------- drivers/scsi/snic/snic_trc.h | 3 --- 2 files changed, 9 insertions(+), 17 deletions(-)