target: remove useless casts

A reader should spend an extra moment whenever noticing a cast,
because either something special is going on that deserves extra
attention or, as is all too often the case, the code is wrong.

These casts, afaics, have all been useless.  They cast a foo* to a
foo*, cast a void* to the assigned type, cast a foo* to void*, before
assigning it to a void* variable, etc.

In a few cases I also removed an additional &...[0], which is equally
useless.

Lastly I added three FIXMEs where, to the best of my judgement, the
code appears to have a bug.  It would be good if someone could check
these.

Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

1 files changed, 6 insertions, 12 deletions

diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index d427a290e184..572d27a6b7ae 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -559,8 +559,7 @@ static char *tcm_loop_get_fabric_name(void)
 
 static u8 tcm_loop_get_fabric_proto_ident(struct se_portal_group *se_tpg)
 {
-        struct tcm_loop_tpg *tl_tpg =
-                        (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+        struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
         struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
         /*
          * tl_proto_id is set at tcm_loop_configfs.c:tcm_loop_make_scsi_hba()
@@ -587,8 +586,7 @@ static u8 tcm_loop_get_fabric_proto_ident(struct se_portal_group *se_tpg)
 
 static char *tcm_loop_get_endpoint_wwn(struct se_portal_group *se_tpg)
 {
-        struct tcm_loop_tpg *tl_tpg =
-                (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+        struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
         /*
          * Return the passed NAA identifier for the SAS Target Port
          */
@@ -597,8 +595,7 @@ static char *tcm_loop_get_endpoint_wwn(struct se_portal_group *se_tpg)
 
 static u16 tcm_loop_get_tag(struct se_portal_group *se_tpg)
 {
-        struct tcm_loop_tpg *tl_tpg =
-                (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+        struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
         /*
          * This Tag is used when forming SCSI Name identifier in EVPD=1 0x83
          * to represent the SCSI Target Port.
@@ -618,8 +615,7 @@ static u32 tcm_loop_get_pr_transport_id(
         int *format_code,
         unsigned char *buf)
 {
-        struct tcm_loop_tpg *tl_tpg =
-                        (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+        struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
         struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
 
         switch (tl_hba->tl_proto_id) {
@@ -648,8 +644,7 @@ static u32 tcm_loop_get_pr_transport_id_len(
         struct t10_pr_registration *pr_reg,
         int *format_code)
 {
-        struct tcm_loop_tpg *tl_tpg =
-                        (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+        struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
         struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
 
         switch (tl_hba->tl_proto_id) {
@@ -682,8 +677,7 @@ static char *tcm_loop_parse_pr_out_transport_id(
         u32 *out_tid_len,
         char **port_nexus_ptr)
 {
-        struct tcm_loop_tpg *tl_tpg =
-                        (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr;
+        struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
         struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
 
         switch (tl_hba->tl_proto_id) {