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scsi: Use 'blist_flags_t' for scsi_devinfo flags

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As per recommendation from Linus we should be using a distinct type for
blacklist flags.

[mkp: was cut against an older kernel, applied by hand]

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke 2017-11-15 12:07:30 +01:00 committed by Martin K. Petersen
parent faae19be80
commit 5ebde4694e
5 changed files with 46 additions and 43 deletions
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18
drivers/scsi/scsi_devinfo.c
View File

@ -22,7 +22,7 @@ struct scsi_dev_info_list {
struct list_head dev_info_list;
char vendor[8];
char model[16];
unsigned flags;
blist_flags_t flags;
unsigned compatible; /* for use with scsi_static_device_list entries */
};
@ -35,7 +35,7 @@ struct scsi_dev_info_list_table {
static const char spaces[] = " "; /* 16 of them */
static unsigned scsi_default_dev_flags;
static blist_flags_t scsi_default_dev_flags;
static LIST_HEAD(scsi_dev_info_list);
static char scsi_dev_flags[256];
@ -52,7 +52,7 @@ static struct {
char *vendor;
char *model;
char *revision; /* revision known to be bad, unused */
unsigned flags;
blist_flags_t flags;
} scsi_static_device_list[] __initdata = {
/*
* The following devices are known not to tolerate a lun != 0 scan
@ -335,7 +335,7 @@ static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
* Returns: 0 OK, -error on failure.
**/
static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
char *strflags, int flags)
char *strflags, blist_flags_t flags)
{
return scsi_dev_info_list_add_keyed(compatible, vendor, model,
strflags, flags,
@ -361,7 +361,7 @@ static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
* Returns: 0 OK, -error on failure.
**/
int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
char *strflags, int flags, int key)
char *strflags, blist_flags_t flags, int key)
{
struct scsi_dev_info_list *devinfo;
struct scsi_dev_info_list_table *devinfo_table =
@ -571,9 +571,9 @@ static int scsi_dev_info_list_add_str(char *dev_list)
* matching flags value, else return the host or global default
* settings. Called during scan time.
**/
int scsi_get_device_flags(struct scsi_device *sdev,
const unsigned char *vendor,
const unsigned char *model)
blist_flags_t scsi_get_device_flags(struct scsi_device *sdev,
const unsigned char *vendor,
const unsigned char *model)
{
return scsi_get_device_flags_keyed(sdev, vendor, model,
SCSI_DEVINFO_GLOBAL);
@ -593,7 +593,7 @@ int scsi_get_device_flags(struct scsi_device *sdev,
* flags value, else return the host or global default settings.
* Called during scan time.
**/
int scsi_get_device_flags_keyed(struct scsi_device *sdev,
blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev,
const unsigned char *vendor,
const unsigned char *model,
int key)

15
drivers/scsi/scsi_priv.h
View File

@ -50,15 +50,16 @@ enum {
SCSI_DEVINFO_SPI,
};
extern int scsi_get_device_flags(struct scsi_device *sdev,
const unsigned char *vendor,
const unsigned char *model);
extern int scsi_get_device_flags_keyed(struct scsi_device *sdev,
const unsigned char *vendor,
const unsigned char *model, int key);
extern blist_flags_t scsi_get_device_flags(struct scsi_device *sdev,
const unsigned char *vendor,
const unsigned char *model);
extern blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev,
const unsigned char *vendor,
const unsigned char *model,
int key);
extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
char *model, char *strflags,
int flags, int key);
blist_flags_t flags, int key);
extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key);
extern int scsi_dev_info_add_list(int key, const char *name);
extern int scsi_dev_info_remove_list(int key);

2
drivers/scsi/scsi_scan.c
View File

@ -566,7 +566,7 @@ EXPORT_SYMBOL(scsi_sanitize_inquiry_string);
* are copied to the scsi_device any flags value is stored in *@bflags.
**/
static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result,
int result_len, int *bflags)
int result_len, blist_flags_t *bflags)
{
unsigned char scsi_cmd[MAX_COMMAND_SIZE];
int first_inquiry_len, try_inquiry_len, next_inquiry_len;

4
include/scsi/scsi_device.h
View File

@ -15,6 +15,8 @@ struct scsi_cmnd;
struct scsi_lun;
struct scsi_sense_hdr;
typedef unsigned int __bitwise blist_flags_t;
struct scsi_mode_data {
__u32 length;
__u16 block_descriptor_length;
@ -141,7 +143,7 @@ struct scsi_device {
unsigned char current_tag; /* current tag */
struct scsi_target *sdev_target; /* used only for single_lun */
unsigned int sdev_bflags; /* black/white flags as also found in
blist_flags_t sdev_bflags; /* black/white flags as also found in
* scsi_devinfo.[hc]. For now used only to
* pass settings from slave_alloc to scsi
* core. */

50
include/scsi/scsi_devinfo.h
View File

@ -6,55 +6,55 @@
*/
/* Only scan LUN 0 */
#define BLIST_NOLUN ((__force __u32 __bitwise)(1 << 0))
#define BLIST_NOLUN ((__force blist_flags_t)(1 << 0))
/* Known to have LUNs, force scanning.
* DEPRECATED: Use max_luns=N */
#define BLIST_FORCELUN ((__force __u32 __bitwise)(1 << 1))
#define BLIST_FORCELUN ((__force blist_flags_t)(1 << 1))
/* Flag for broken handshaking */
#define BLIST_BORKEN ((__force __u32 __bitwise)(1 << 2))
#define BLIST_BORKEN ((__force blist_flags_t)(1 << 2))
/* unlock by special command */
#define BLIST_KEY ((__force __u32 __bitwise)(1 << 3))
#define BLIST_KEY ((__force blist_flags_t)(1 << 3))
/* Do not use LUNs in parallel */
#define BLIST_SINGLELUN ((__force __u32 __bitwise)(1 << 4))
#define BLIST_SINGLELUN ((__force blist_flags_t)(1 << 4))
/* Buggy Tagged Command Queuing */
#define BLIST_NOTQ ((__force __u32 __bitwise)(1 << 5))
#define BLIST_NOTQ ((__force blist_flags_t)(1 << 5))
/* Non consecutive LUN numbering */
#define BLIST_SPARSELUN ((__force __u32 __bitwise)(1 << 6))
#define BLIST_SPARSELUN ((__force blist_flags_t)(1 << 6))
/* Avoid LUNS >= 5 */
#define BLIST_MAX5LUN ((__force __u32 __bitwise)(1 << 7))
#define BLIST_MAX5LUN ((__force blist_flags_t)(1 << 7))
/* Treat as (removable) CD-ROM */
#define BLIST_ISROM ((__force __u32 __bitwise)(1 << 8))
#define BLIST_ISROM ((__force blist_flags_t)(1 << 8))
/* LUNs past 7 on a SCSI-2 device */
#define BLIST_LARGELUN ((__force __u32 __bitwise)(1 << 9))
#define BLIST_LARGELUN ((__force blist_flags_t)(1 << 9))
/* override additional length field */
#define BLIST_INQUIRY_36 ((__force __u32 __bitwise)(1 << 10))
#define BLIST_INQUIRY_36 ((__force blist_flags_t)(1 << 10))
/* do not do automatic start on add */
#define BLIST_NOSTARTONADD ((__force __u32 __bitwise)(1 << 12))
#define BLIST_NOSTARTONADD ((__force blist_flags_t)(1 << 12))
/* try REPORT_LUNS even for SCSI-2 devs (if HBA supports more than 8 LUNs) */
#define BLIST_REPORTLUN2 ((__force __u32 __bitwise)(1 << 17))
#define BLIST_REPORTLUN2 ((__force blist_flags_t)(1 << 17))
/* don't try REPORT_LUNS scan (SCSI-3 devs) */
#define BLIST_NOREPORTLUN ((__force __u32 __bitwise)(1 << 18))
#define BLIST_NOREPORTLUN ((__force blist_flags_t)(1 << 18))
/* don't use PREVENT-ALLOW commands */
#define BLIST_NOT_LOCKABLE ((__force __u32 __bitwise)(1 << 19))
#define BLIST_NOT_LOCKABLE ((__force blist_flags_t)(1 << 19))
/* device is actually for RAID config */
#define BLIST_NO_ULD_ATTACH ((__force __u32 __bitwise)(1 << 20))
#define BLIST_NO_ULD_ATTACH ((__force blist_flags_t)(1 << 20))
/* select without ATN */
#define BLIST_SELECT_NO_ATN ((__force __u32 __bitwise)(1 << 21))
#define BLIST_SELECT_NO_ATN ((__force blist_flags_t)(1 << 21))
/* retry HARDWARE_ERROR */
#define BLIST_RETRY_HWERROR ((__force __u32 __bitwise)(1 << 22))
#define BLIST_RETRY_HWERROR ((__force blist_flags_t)(1 << 22))
/* maximum 512 sector cdb length */
#define BLIST_MAX_512 ((__force __u32 __bitwise)(1 << 23))
#define BLIST_MAX_512 ((__force blist_flags_t)(1 << 23))
/* Disable T10 PI (DIF) */
#define BLIST_NO_DIF ((__force __u32 __bitwise)(1 << 25))
#define BLIST_NO_DIF ((__force blist_flags_t)(1 << 25))
/* Ignore SBC-3 VPD pages */
#define BLIST_SKIP_VPD_PAGES ((__force __u32 __bitwise)(1 << 26))
#define BLIST_SKIP_VPD_PAGES ((__force blist_flags_t)(1 << 26))
/* Attempt to read VPD pages */
#define BLIST_TRY_VPD_PAGES ((__force __u32 __bitwise)(1 << 28))
#define BLIST_TRY_VPD_PAGES ((__force blist_flags_t)(1 << 28))
/* don't try to issue RSOC */
#define BLIST_NO_RSOC ((__force __u32 __bitwise)(1 << 29))
#define BLIST_NO_RSOC ((__force blist_flags_t)(1 << 29))
/* maximum 1024 sector cdb length */
#define BLIST_MAX_1024 ((__force __u32 __bitwise)(1 << 30))
#define BLIST_MAX_1024 ((__force blist_flags_t)(1 << 30))
/* Use UNMAP limit for WRITE SAME */
#define BLIST_UNMAP_LIMIT_WS ((__force __u32 __bitwise)(1 << 31))
#define BLIST_UNMAP_LIMIT_WS ((__force blist_flags_t)(1 << 31))
#endif