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authorJulian Wiedmann <jwi@linux.ibm.com>2020-07-03 15:20:02 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2020-07-08 06:50:55 +0200
commit6bcb7c171a0ce0b0114aa088404e552b49d85576 (patch)
tree0e9e08493e45f6104c3d3d0b842c6814d23d4b67 /drivers/s390/scsi/zfcp_ccw.c
parentscsi: zfcp: Clean up zfcp_erp_action_ready() (diff)
downloadlinux-6bcb7c171a0ce0b0114aa088404e552b49d85576.tar.xz
linux-6bcb7c171a0ce0b0114aa088404e552b49d85576.zip
scsi: zfcp: Replace open-coded list move
Instead of manually moving each element of the unit and port lists into our temporary on-stack lists, splice them over in one go. Link: https://lore.kernel.org/r/cacb179f49ece50fd4dce119c61252d632cdc1d4.1593780621.git.bblock@linux.ibm.com Reviewed-by: Steffen Maier <maier@linux.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Benjamin Block <bblock@linux.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_ccw.c')
-rw-r--r--drivers/s390/scsi/zfcp_ccw.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 49eda141ea43..d9fd0a41da64 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -124,13 +124,12 @@ static void zfcp_ccw_remove(struct ccw_device *cdev)
return;
write_lock_irq(&adapter->port_list_lock);
- list_for_each_entry_safe(port, p, &adapter->port_list, list) {
+ list_for_each_entry(port, &adapter->port_list, list) {
write_lock(&port->unit_list_lock);
- list_for_each_entry_safe(unit, u, &port->unit_list, list)
- list_move(&unit->list, &unit_remove_lh);
+ list_splice_init(&port->unit_list, &unit_remove_lh);
write_unlock(&port->unit_list_lock);
- list_move(&port->list, &port_remove_lh);
}
+ list_splice_init(&adapter->port_list, &port_remove_lh);
write_unlock_irq(&adapter->port_list_lock);
zfcp_ccw_adapter_put(adapter); /* put from zfcp_ccw_adapter_by_cdev */