scsi: lpfc: Clean up extraneous phba dentries

Because debugfs_remove recursively removes debugfs entries, the
lpfc_debugfs_terminate routine is updated to remove only the parent/root
debugfs directories.  As such, there no longer is a need to keep track
of each individual debugfs entry so clean up the unused phba dentries.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Closes: https://lore.kernel.org/linux-fsdevel/20250702212917.GK3406663@ZenIV/
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Message-ID: <20250915180811.137530-12-justintee8345@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: Justin Tee

drivers/scsi/lpfc/lpfc.h

@@ -741,12 +741,6 @@ struct lpfc_vport {
 	struct lpfc_vmid_priority_info vmid_priority;
 
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
-	struct dentry *debug_disc_trc;
-	struct dentry *debug_nodelist;
-	struct dentry *debug_nvmestat;
-	struct dentry *debug_scsistat;
-	struct dentry *debug_ioktime;
-	struct dentry *debug_hdwqstat;
 	struct dentry *vport_debugfs_root;
 	struct lpfc_debugfs_trc *disc_trc;
 	atomic_t disc_trc_cnt;
@@ -1339,29 +1333,8 @@ struct lpfc_hba {
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 	struct dentry *hba_debugfs_root;
 	atomic_t debugfs_vport_count;
-	struct dentry *debug_multixri_pools;
-	struct dentry *debug_hbqinfo;
-	struct dentry *debug_dumpHostSlim;
-	struct dentry *debug_dumpHBASlim;
-	struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
-	struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
-	struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
-	struct dentry *debug_writeGuard; /* inject write guard_tag errors */
-	struct dentry *debug_writeApp;   /* inject write app_tag errors */
-	struct dentry *debug_writeRef;   /* inject write ref_tag errors */
-	struct dentry *debug_readGuard;  /* inject read guard_tag errors */
-	struct dentry *debug_readApp;    /* inject read app_tag errors */
-	struct dentry *debug_readRef;    /* inject read ref_tag errors */
-
-	struct dentry *debug_nvmeio_trc;
+
 	struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
-	struct dentry *debug_hdwqinfo;
-#ifdef LPFC_HDWQ_LOCK_STAT
-	struct dentry *debug_lockstat;
-#endif
-	struct dentry *debug_cgn_buffer;
-	struct dentry *debug_rx_monitor;
-	struct dentry *debug_ras_log;
 	atomic_t nvmeio_trc_cnt;
 	uint32_t nvmeio_trc_size;
 	uint32_t nvmeio_trc_output_idx;
@@ -1378,19 +1351,10 @@ struct lpfc_hba {
 	sector_t lpfc_injerr_lba;
 #define LPFC_INJERR_LBA_OFF	(sector_t)(-1)
 
-	struct dentry *debug_slow_ring_trc;
 	struct lpfc_debugfs_trc *slow_ring_trc;
 	atomic_t slow_ring_trc_cnt;
 	/* iDiag debugfs sub-directory */
 	struct dentry *idiag_root;
-	struct dentry *idiag_pci_cfg;
-	struct dentry *idiag_bar_acc;
-	struct dentry *idiag_que_info;
-	struct dentry *idiag_que_acc;
-	struct dentry *idiag_drb_acc;
-	struct dentry *idiag_ctl_acc;
-	struct dentry *idiag_mbx_acc;
-	struct dentry *idiag_ext_acc;
 	uint8_t lpfc_idiag_last_eq;
 #endif
 	uint16_t nvmeio_trc_on;