[2.6 patch] SCSI: possible cleanups
From: Adrian Bunk (bunk_at_stusta.de)
Date: 02/28/05
- Previous message: Christoph Hellwig: "Re: [2.6 patch] drivers/scsi/qla2xxx/: cleanups"
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Date: Mon, 28 Feb 2005 22:31:59 +0100 To: James.Bottomley@SteelEye.com
Before I'm getting flamed to death:
This patch contains possible cleanups. If parts of this patch conflict
with pending changes these parts of my patch have to be dropped.
This patch contains the following possible cleanups:
- make needlessly global code static
- remove or #if 0 the following unused functions:
- scsi.h: print_driverbyte
- scsi.h: print_hostbyte
- constants.c: scsi_print_hostbyte
- constants.c: scsi_print_driverbyte
- scsi_scan.c: scsi_scan_single_target
- remove the following unneeded EXPORT_SYMBOL's:
- constants.c: __scsi_print_sense
- hosts.c: scsi_host_lookup
- scsi.c: scsi_device_cancel
- scsi_error.c: scsi_normalize_sense
- scsi_error.c: scsi_sense_desc_find
- scsi_lib.c: scsi_device_resume
- scsi_scan.c: scsi_rescan_device
- scsi_scan.c: scsi_scan_single_target
Signed-off-by: Adrian Bunk <bunk@stusta.de>
---
drivers/scsi/constants.c | 56 -------------------------------------
drivers/scsi/hosts.c | 3 -
drivers/scsi/scsi.c | 9 +++--
drivers/scsi/scsi.h | 8 -----
drivers/scsi/scsi_debug.c | 2 -
drivers/scsi/scsi_error.c | 6 +--
drivers/scsi/scsi_lib.c | 5 +--
drivers/scsi/scsi_priv.h | 4 --
drivers/scsi/scsi_scan.c | 3 +
drivers/scsi/scsi_sysfs.c | 4 +-
include/scsi/scsi_dbg.h | 5 ---
include/scsi/scsi_device.h | 1
include/scsi/scsi_eh.h | 3 -
include/scsi/scsi_host.h | 2 -
14 files changed, 16 insertions(+), 95 deletions(-)
--- linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi.h.old 2005-02-28 18:18:22.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi.h 2005-02-28 18:19:02.000000000 +0100
@@ -80,14 +80,6 @@
{
return scsi_print_req_sense(devclass, req);
}
-static inline void print_driverbyte(int scsiresult)
-{
- return scsi_print_driverbyte(scsiresult);
-}
-static inline void print_hostbyte(int scsiresult)
-{
- return scsi_print_hostbyte(scsiresult);
-}
static inline void print_status(unsigned char status)
{
return scsi_print_status(status);
--- linux-2.6.11-rc4-mm1-full/include/scsi/scsi_dbg.h.old 2005-02-28 18:17:32.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/include/scsi/scsi_dbg.h 2005-02-28 18:18:57.000000000 +0100
@@ -8,11 +8,6 @@
extern void __scsi_print_command(unsigned char *);
extern void scsi_print_sense(const char *, struct scsi_cmnd *);
extern void scsi_print_req_sense(const char *, struct scsi_request *);
-extern void __scsi_print_sense(const char *name,
- const unsigned char *sense_buffer,
- int sense_len);
-extern void scsi_print_driverbyte(int);
-extern void scsi_print_hostbyte(int);
extern void scsi_print_status(unsigned char);
extern int scsi_print_msg(const unsigned char *);
extern const char *scsi_sense_key_string(unsigned char);
--- linux-2.6.11-rc4-mm1-full/drivers/scsi/constants.c.old 2005-02-28 18:17:46.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/scsi/constants.c 2005-02-28 18:19:47.000000000 +0100
@@ -1156,7 +1156,7 @@
}
/* Print sense information */
-void
+static void
__scsi_print_sense(const char *name, const unsigned char *sense_buffer,
int sense_len)
{
@@ -1251,7 +1251,6 @@
printk("\n");
}
}
-EXPORT_SYMBOL(__scsi_print_sense);
void scsi_print_sense(const char *devclass, struct scsi_cmnd *cmd)
{
@@ -1393,56 +1392,3 @@
}
EXPORT_SYMBOL(scsi_print_command);
-#ifdef CONFIG_SCSI_CONSTANTS
-
-static const char * hostbyte_table[]={
-"DID_OK", "DID_NO_CONNECT", "DID_BUS_BUSY", "DID_TIME_OUT", "DID_BAD_TARGET",
-"DID_ABORT", "DID_PARITY", "DID_ERROR", "DID_RESET", "DID_BAD_INTR",
-"DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY"};
-#define NUM_HOSTBYTE_STRS (sizeof(hostbyte_table) / sizeof(const char *))
-
-void scsi_print_hostbyte(int scsiresult)
-{
- int hb = host_byte(scsiresult);
-
- printk("Hostbyte=0x%02x", hb);
- if (hb < NUM_HOSTBYTE_STRS)
- printk("(%s) ", hostbyte_table[hb]);
- else
- printk("is invalid ");
-}
-#else
-void scsi_print_hostbyte(int scsiresult)
-{
- printk("Hostbyte=0x%02x ", host_byte(scsiresult));
-}
-#endif
-
-#ifdef CONFIG_SCSI_CONSTANTS
-
-static const char * driverbyte_table[]={
-"DRIVER_OK", "DRIVER_BUSY", "DRIVER_SOFT", "DRIVER_MEDIA", "DRIVER_ERROR",
-"DRIVER_INVALID", "DRIVER_TIMEOUT", "DRIVER_HARD", "DRIVER_SENSE"};
-#define NUM_DRIVERBYTE_STRS (sizeof(driverbyte_table) / sizeof(const char *))
-
-static const char * driversuggest_table[]={"SUGGEST_OK",
-"SUGGEST_RETRY", "SUGGEST_ABORT", "SUGGEST_REMAP", "SUGGEST_DIE",
-"SUGGEST_5", "SUGGEST_6", "SUGGEST_7", "SUGGEST_SENSE"};
-#define NUM_SUGGEST_STRS (sizeof(driversuggest_table) / sizeof(const char *))
-
-void scsi_print_driverbyte(int scsiresult)
-{
- int dr = (driver_byte(scsiresult) & DRIVER_MASK);
- int su = ((driver_byte(scsiresult) & SUGGEST_MASK) >> 4);
-
- printk("Driverbyte=0x%02x ", driver_byte(scsiresult));
- printk("(%s,%s) ",
- (dr < NUM_DRIVERBYTE_STRS ? driverbyte_table[dr] : "invalid"),
- (su < NUM_SUGGEST_STRS ? driversuggest_table[su] : "invalid"));
-}
-#else
-void scsi_print_driverbyte(int scsiresult)
-{
- printk("Driverbyte=0x%02x ", driver_byte(scsiresult));
-}
-#endif
--- linux-2.6.11-rc4-mm1-full/drivers/scsi/hosts.c.old 2005-02-28 18:33:14.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/scsi/hosts.c 2005-02-28 18:35:23.000000000 +0100
@@ -56,7 +56,7 @@
* @shost: pointer to struct Scsi_Host
* recovery: recovery requested to run.
**/
-void scsi_host_cancel(struct Scsi_Host *shost, int recovery)
+static void scsi_host_cancel(struct Scsi_Host *shost, int recovery)
{
struct scsi_device *sdev;
@@ -362,7 +362,6 @@
return shost;
}
-EXPORT_SYMBOL(scsi_host_lookup);
/**
* scsi_host_get - inc a Scsi_Host ref count
--- linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_priv.h.old 2005-02-28 19:59:30.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_priv.h 2005-02-28 20:20:31.000000000 +0100
@@ -66,8 +66,6 @@
extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
-extern void scsi_done(struct scsi_cmnd *cmd);
-extern int scsi_retry_command(struct scsi_cmnd *cmd);
extern int scsi_insert_special_req(struct scsi_request *sreq, int);
extern void scsi_init_cmd_from_req(struct scsi_cmnd *cmd,
struct scsi_request *sreq);
@@ -141,7 +139,6 @@
#endif /* CONFIG_SYSCTL */
/* scsi_sysfs.c */
-extern void scsi_device_dev_release(struct device *);
extern int scsi_sysfs_add_sdev(struct scsi_device *);
extern int scsi_sysfs_add_host(struct Scsi_Host *);
extern int scsi_sysfs_register(void);
@@ -150,7 +147,6 @@
extern int scsi_sysfs_target_initialize(struct scsi_device *);
extern struct scsi_transport_template blank_transport_template;
-extern struct class sdev_class;
extern struct bus_type scsi_bus_type;
/*
--- linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi.c.old 2005-02-28 19:59:56.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi.c 2005-02-28 20:07:39.000000000 +0100
@@ -68,6 +68,8 @@
#include "scsi_priv.h"
#include "scsi_logging.h"
+static void scsi_done(struct scsi_cmnd *cmd);
+static int scsi_retry_command(struct scsi_cmnd *cmd);
/*
* Definitions and constants.
@@ -90,7 +92,7 @@
/*
* Data declarations.
*/
-unsigned long scsi_pid;
+static unsigned long scsi_pid;
static unsigned long serial_number;
/*
@@ -733,7 +735,7 @@
*
* This function is interrupt context safe.
*/
-void scsi_done(struct scsi_cmnd *cmd)
+static void scsi_done(struct scsi_cmnd *cmd)
{
/*
* We don't have to worry about this one timing out any more.
@@ -829,7 +831,7 @@
* level drivers should not become re-entrant as a result of
* this.
*/
-int scsi_retry_command(struct scsi_cmnd *cmd)
+static int scsi_retry_command(struct scsi_cmnd *cmd)
{
/*
* Restore the SCSI command state.
@@ -1215,7 +1217,6 @@
return 0;
}
-EXPORT_SYMBOL(scsi_device_cancel);
#ifdef CONFIG_HOTPLUG_CPU
static int scsi_cpu_notify(struct notifier_block *self,
--- linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_debug.c.old 2005-02-28 20:22:08.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_debug.c 2005-02-28 20:09:36.000000000 +0100
@@ -1783,7 +1783,7 @@
device_initcall(scsi_debug_init);
module_exit(scsi_debug_exit);
-void pseudo_0_release(struct device * dev)
+static void pseudo_0_release(struct device * dev)
{
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: pseudo_0_release() called\n");
--- linux-2.6.11-rc4-mm1-full/include/scsi/scsi_eh.h.old 2005-02-28 20:09:59.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/include/scsi/scsi_eh.h 2005-02-28 20:10:08.000000000 +0100
@@ -45,9 +45,6 @@
return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1));
}
-extern const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len,
- int desc_type);
-
extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len,
u64 * info_out);
--- linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_error.c.old 2005-02-28 20:10:16.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_error.c 2005-02-28 20:12:08.000000000 +0100
@@ -1931,7 +1931,6 @@
return 1;
}
-EXPORT_SYMBOL(scsi_normalize_sense);
int scsi_request_normalize_sense(struct scsi_request *sreq,
struct scsi_sense_hdr *sshdr)
@@ -1964,8 +1963,8 @@
* Return value:
* pointer to start of (first) descriptor if found else NULL
**/
-const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len,
- int desc_type)
+static const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len,
+ int desc_type)
{
int add_sen_len, add_len, desc_len, k;
const u8 * descp;
@@ -1988,7 +1987,6 @@
}
return NULL;
}
-EXPORT_SYMBOL(scsi_sense_desc_find);
/**
* scsi_get_sense_info_fld - attempts to get information field from
--- linux-2.6.11-rc4-mm1-full/include/scsi/scsi_device.h.old 2005-02-28 20:14:08.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/include/scsi/scsi_device.h 2005-02-28 20:14:16.000000000 +0100
@@ -223,7 +223,6 @@
extern int scsi_device_set_state(struct scsi_device *sdev,
enum scsi_device_state state);
extern int scsi_device_quiesce(struct scsi_device *sdev);
-extern void scsi_device_resume(struct scsi_device *sdev);
extern void scsi_target_quiesce(struct scsi_target *);
extern void scsi_target_resume(struct scsi_target *);
extern const char *scsi_device_state_name(enum scsi_device_state);
--- linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_lib.c.old 2005-02-28 20:14:23.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_lib.c 2005-02-28 20:15:11.000000000 +0100
@@ -44,7 +44,7 @@
#endif
#define SP(x) { x, "sgpool-" #x }
-struct scsi_host_sg_pool scsi_sg_pools[] = {
+static struct scsi_host_sg_pool scsi_sg_pools[] = {
SP(8),
SP(16),
SP(32),
@@ -1817,14 +1817,13 @@
*
* Must be called with user context, may sleep.
**/
-void
+static void
scsi_device_resume(struct scsi_device *sdev)
{
if(scsi_device_set_state(sdev, SDEV_RUNNING))
return;
scsi_run_queue(sdev->request_queue);
}
-EXPORT_SYMBOL(scsi_device_resume);
static void
device_quiesce_fn(struct scsi_device *sdev, void *data)
--- linux-2.6.11-rc4-mm1-full/include/scsi/scsi_host.h.old 2005-02-28 20:17:15.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/include/scsi/scsi_host.h 2005-02-28 20:17:23.000000000 +0100
@@ -569,8 +569,6 @@
extern struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *, int);
extern int __must_check scsi_add_host(struct Scsi_Host *, struct device *);
extern void scsi_scan_host(struct Scsi_Host *);
-extern void scsi_scan_single_target(struct Scsi_Host *, unsigned int,
- unsigned int);
extern void scsi_rescan_device(struct device *);
extern void scsi_remove_host(struct Scsi_Host *);
extern struct Scsi_Host *scsi_host_get(struct Scsi_Host *);
--- linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_scan.c.old 2005-02-28 20:17:30.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_scan.c 2005-02-28 20:19:00.000000000 +0100
@@ -1101,7 +1101,6 @@
module_put(drv->owner);
}
}
-EXPORT_SYMBOL(scsi_rescan_device);
/**
* scsi_scan_target - scan a target id, possibly including all LUNs on the
@@ -1238,12 +1237,14 @@
* @chan: channel to scan
* @id: target id to scan
**/
+#if 0
void scsi_scan_single_target(struct Scsi_Host *shost,
unsigned int chan, unsigned int id)
{
scsi_scan_host_selected(shost, chan, id, SCAN_WILD_CARD, 1);
}
EXPORT_SYMBOL(scsi_scan_single_target);
+#endif /* 0 */
void scsi_forget_host(struct Scsi_Host *shost)
{
--- linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_sysfs.c.old 2005-02-28 20:19:41.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/scsi/scsi_sysfs.c 2005-02-28 20:20:36.000000000 +0100
@@ -150,7 +150,7 @@
put_device(&sdev->sdev_gendev);
}
-void scsi_device_dev_release(struct device *dev)
+static void scsi_device_dev_release(struct device *dev)
{
struct scsi_device *sdev;
struct device *parent;
@@ -188,7 +188,7 @@
put_device(parent);
}
-struct class sdev_class = {
+static struct class sdev_class = {
.name = "scsi_device",
.release = scsi_device_cls_release,
};
-
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