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authorBhanu Prakash Gollapudi <bprakash@broadcom.com>2012-06-07 13:19:36 +0400
committerJames Bottomley <JBottomley@Parallels.com>2012-07-20 11:58:24 +0400
commitd71fb3bdeee80565eda4d3453ff6d9f6f8176745 (patch)
tree2b2e1c6a92a201348d3d0862271f864d60841ef7 /drivers
parent5c17ae217ad13463f821c3bab774335777da9c33 (diff)
downloadlinux-d71fb3bdeee80565eda4d3453ff6d9f6f8176745.tar.xz
[SCSI] bnx2fc: use list_entry instead of explicit cast
Use list_for_each_entry_safe() instead of explicit cast to avoid relying on struct layout Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_fcoe.c5
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_io.c21
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_tgt.c15
3 files changed, 13 insertions, 28 deletions
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 17ab9f7d2e26..0c9caa6747ae 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -2151,13 +2151,10 @@ mod_err:
**/
static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
{
- struct list_head *list;
- struct list_head *temp;
struct bnx2fc_hba *hba;
/* Called with bnx2fc_dev_lock held */
- list_for_each_safe(list, temp, &adapter_list) {
- hba = (struct bnx2fc_hba *)list;
+ list_for_each_entry(hba, &adapter_list, list) {
if (hba->cnic == cnic)
return hba;
}
diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
index a4fdc3d47f44..73f231ccd45b 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_io.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -405,11 +405,10 @@ free_cmd_pool:
goto free_cmgr;
for (i = 0; i < num_possible_cpus() + 1; i++) {
- struct list_head *list;
- struct list_head *tmp;
+ struct bnx2fc_cmd *tmp, *io_req;
- list_for_each_safe(list, tmp, &cmgr->free_list[i]) {
- struct bnx2fc_cmd *io_req = (struct bnx2fc_cmd *)list;
+ list_for_each_entry_safe(io_req, tmp,
+ &cmgr->free_list[i], link) {
list_del(&io_req->link);
kfree(io_req);
}
@@ -1436,9 +1435,7 @@ static void bnx2fc_lun_reset_cmpl(struct bnx2fc_cmd *io_req)
{
struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
struct bnx2fc_rport *tgt = io_req->tgt;
- struct list_head *list;
- struct list_head *tmp;
- struct bnx2fc_cmd *cmd;
+ struct bnx2fc_cmd *cmd, *tmp;
int tm_lun = sc_cmd->device->lun;
int rc = 0;
int lun;
@@ -1449,9 +1446,8 @@ static void bnx2fc_lun_reset_cmpl(struct bnx2fc_cmd *io_req)
* Walk thru the active_ios queue and ABORT the IO
* that matches with the LUN that was reset
*/
- list_for_each_safe(list, tmp, &tgt->active_cmd_queue) {
+ list_for_each_entry_safe(cmd, tmp, &tgt->active_cmd_queue, link) {
BNX2FC_TGT_DBG(tgt, "LUN RST cmpl: scan for pending IOs\n");
- cmd = (struct bnx2fc_cmd *)list;
lun = cmd->sc_cmd->device->lun;
if (lun == tm_lun) {
/* Initiate ABTS on this cmd */
@@ -1476,9 +1472,7 @@ static void bnx2fc_lun_reset_cmpl(struct bnx2fc_cmd *io_req)
static void bnx2fc_tgt_reset_cmpl(struct bnx2fc_cmd *io_req)
{
struct bnx2fc_rport *tgt = io_req->tgt;
- struct list_head *list;
- struct list_head *tmp;
- struct bnx2fc_cmd *cmd;
+ struct bnx2fc_cmd *cmd, *tmp;
int rc = 0;
/* called with tgt_lock held */
@@ -1487,9 +1481,8 @@ static void bnx2fc_tgt_reset_cmpl(struct bnx2fc_cmd *io_req)
* Walk thru the active_ios queue and ABORT the IO
* that matches with the LUN that was reset
*/
- list_for_each_safe(list, tmp, &tgt->active_cmd_queue) {
+ list_for_each_entry_safe(cmd, tmp, &tgt->active_cmd_queue, link) {
BNX2FC_TGT_DBG(tgt, "TGT RST cmpl: scan for pending IOs\n");
- cmd = (struct bnx2fc_cmd *)list;
/* Initiate ABTS */
if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
&cmd->req_flags)) {
diff --git a/drivers/scsi/bnx2fc/bnx2fc_tgt.c b/drivers/scsi/bnx2fc/bnx2fc_tgt.c
index 85ffdeaa3b85..b9d0d9cb17f9 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_tgt.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_tgt.c
@@ -150,8 +150,7 @@ tgt_init_err:
void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt)
{
struct bnx2fc_cmd *io_req;
- struct list_head *list;
- struct list_head *tmp;
+ struct bnx2fc_cmd *tmp;
int rc;
int i = 0;
BNX2FC_TGT_DBG(tgt, "Entered flush_active_ios - %d\n",
@@ -160,9 +159,8 @@ void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt)
spin_lock_bh(&tgt->tgt_lock);
tgt->flush_in_prog = 1;
- list_for_each_safe(list, tmp, &tgt->active_cmd_queue) {
+ list_for_each_entry_safe(io_req, tmp, &tgt->active_cmd_queue, link) {
i++;
- io_req = (struct bnx2fc_cmd *)list;
list_del_init(&io_req->link);
io_req->on_active_queue = 0;
BNX2FC_IO_DBG(io_req, "cmd_queue cleanup\n");
@@ -191,9 +189,8 @@ void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt)
}
}
- list_for_each_safe(list, tmp, &tgt->active_tm_queue) {
+ list_for_each_entry_safe(io_req, tmp, &tgt->active_tm_queue, link) {
i++;
- io_req = (struct bnx2fc_cmd *)list;
list_del_init(&io_req->link);
io_req->on_tmf_queue = 0;
BNX2FC_IO_DBG(io_req, "tm_queue cleanup\n");
@@ -201,9 +198,8 @@ void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt)
complete(&io_req->tm_done);
}
- list_for_each_safe(list, tmp, &tgt->els_queue) {
+ list_for_each_entry_safe(io_req, tmp, &tgt->els_queue, link) {
i++;
- io_req = (struct bnx2fc_cmd *)list;
list_del_init(&io_req->link);
io_req->on_active_queue = 0;
@@ -227,9 +223,8 @@ void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt)
}
}
- list_for_each_safe(list, tmp, &tgt->io_retire_queue) {
+ list_for_each_entry_safe(io_req, tmp, &tgt->io_retire_queue, link) {
i++;
- io_req = (struct bnx2fc_cmd *)list;
list_del_init(&io_req->link);
BNX2FC_IO_DBG(io_req, "retire_queue flush\n");