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Date: Sat, 15 Jan 2011 17:04:45 +0300
From: Dan Carpenter <error27@...il.com>
To: "Nicholas A. Bellinger" <nab@...ux-iscsi.org>
Cc: James Bottomley <James.Bottomley@...e.de>,
linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
kernel-janitors@...r.kernel.org
Subject: [patch] [SCSI] target: dubious one-bit signed bitfield
The signed one-bit types can be 0 or -1 which can cause a problem if
someone ever checks if (foo->lu_gp_assoc == 1). The current code is
fine because everyone just checks zero vs non-zero. But Sparse
complains about it so lets change it. The warnings look like this:
include/target/target_core_base.h:228:26: error: dubious one-bit signed bitfield
Signed-off-by: Dan Carpenter <error27@...il.com>
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 07fdfb6..764177b 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -225,7 +225,7 @@ struct t10_alua_lu_gp {
} ____cacheline_aligned;
struct t10_alua_lu_gp_member {
- int lu_gp_assoc:1;
+ bool lu_gp_assoc;
atomic_t lu_gp_mem_ref_cnt;
spinlock_t lu_gp_mem_lock;
struct t10_alua_lu_gp *lu_gp;
@@ -257,7 +257,7 @@ struct t10_alua_tg_pt_gp {
} ____cacheline_aligned;
struct t10_alua_tg_pt_gp_member {
- int tg_pt_gp_assoc:1;
+ bool tg_pt_gp_assoc;
atomic_t tg_pt_gp_mem_ref_cnt;
spinlock_t tg_pt_gp_mem_lock;
struct t10_alua_tg_pt_gp *tg_pt_gp;
@@ -322,7 +322,7 @@ struct t10_pr_registration {
int pr_res_type;
int pr_res_scope;
/* Used for fabric initiator WWPNs using a ISID */
- int isid_present_at_reg:1;
+ bool isid_present_at_reg;
u32 pr_res_mapped_lun;
u32 pr_aptpl_target_lun;
u32 pr_res_generation;
@@ -404,7 +404,7 @@ struct se_transport_task {
unsigned long long t_task_lba;
int t_tasks_failed;
int t_tasks_fua;
- int t_tasks_bidi:1;
+ bool t_tasks_bidi;
u32 t_task_cdbs;
u32 t_tasks_check;
u32 t_tasks_no;
@@ -456,7 +456,7 @@ struct se_task {
u8 task_flags;
int task_error_status;
int task_state_flags;
- int task_padded_sg:1;
+ bool task_padded_sg;
unsigned long long task_lba;
u32 task_no;
u32 task_sectors;
@@ -569,7 +569,7 @@ struct se_ua {
struct se_node_acl {
char initiatorname[TRANSPORT_IQN_LEN];
/* Used to signal demo mode created ACL, disabled by default */
- int dynamic_node_acl:1;
+ bool dynamic_node_acl;
u32 queue_depth;
u32 acl_index;
u64 num_cmds;
@@ -622,7 +622,7 @@ struct se_lun_acl {
} ____cacheline_aligned;
struct se_dev_entry {
- int def_pr_registered:1;
+ bool def_pr_registered;
/* See transport_lunflags_table */
u32 lun_flags;
u32 deve_cmds;
diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric_ops.h
index f3ac12b..5eb8b1a 100644
--- a/include/target/target_core_fabric_ops.h
+++ b/include/target/target_core_fabric_ops.h
@@ -8,7 +8,7 @@ struct target_core_fabric_ops {
* for scatterlist chaining using transport_do_task_sg_link(),
* disabled by default
*/
- int task_sg_chaining:1;
+ bool task_sg_chaining;
char *(*get_fabric_name)(void);
u8 (*get_fabric_proto_ident)(struct se_portal_group *);
char *(*tpg_get_wwn)(struct se_portal_group *);
--
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