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Commit 3cc958cc authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Christoph Hellwig
Browse files

scsi: separate out scsi_(host|driver)byte_string() 



Export functions for later use.

Signed-off-by: default avatarHannes Reinecke <hare@suse.de>
Reviewed-by: default avatarRobert Elliott <elliott@hp.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 1fa6b5fb

drivers/scsi/constants.c

+44 −14
Original line number Diff line number Diff line
@@ -1407,38 +1407,68 @@ static const char * const hostbyte_table[]={ 
"DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY", "DID_REQUEUE",

"DID_TRANSPORT_DISRUPTED", "DID_TRANSPORT_FAILFAST", "DID_TARGET_FAILURE",

"DID_NEXUS_FAILURE" };

#define NUM_HOSTBYTE_STRS ARRAY_SIZE(hostbyte_table)



static const char * const driverbyte_table[]={

"DRIVER_OK", "DRIVER_BUSY", "DRIVER_SOFT",  "DRIVER_MEDIA", "DRIVER_ERROR",

"DRIVER_INVALID", "DRIVER_TIMEOUT", "DRIVER_HARD", "DRIVER_SENSE"};

#define NUM_DRIVERBYTE_STRS ARRAY_SIZE(driverbyte_table)



void scsi_show_result(int result)

#endif



const char *scsi_hostbyte_string(int result)

{

	const char *hb_string = NULL;

#ifdef CONFIG_SCSI_CONSTANTS

	int hb = host_byte(result);

	int db = driver_byte(result);



	printk("Result: hostbyte=%s driverbyte=%s\n",

	       (hb < NUM_HOSTBYTE_STRS ? hostbyte_table[hb]     : "invalid"),

	       (db < NUM_DRIVERBYTE_STRS ? driverbyte_table[db] : "invalid"));

	if (hb < ARRAY_SIZE(hostbyte_table))

		hb_string = hostbyte_table[hb];

#endif

	return hb_string;

}

EXPORT_SYMBOL(scsi_hostbyte_string);



#else

const char *scsi_driverbyte_string(int result)

{

	const char *db_string = NULL;

#ifdef CONFIG_SCSI_CONSTANTS

	int db = driver_byte(result);



	if (db < ARRAY_SIZE(driverbyte_table))

		db_string = driverbyte_table[db];

#endif

	return db_string;

}

EXPORT_SYMBOL(scsi_driverbyte_string);



void scsi_show_result(int result)

{

	const char *hb_string = scsi_hostbyte_string(result);

	const char *db_string = scsi_driverbyte_string(result);



	if (hb_string || db_string)

		printk("Result: hostbyte=%s driverbyte=%s\n",

		       hb_string ? hb_string : "invalid",

		       db_string ? db_string : "invalid");

	else

		printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",

		       host_byte(result), driver_byte(result));

}



#endif

EXPORT_SYMBOL(scsi_show_result);





void scsi_print_result(struct scsi_cmnd *cmd)

{

	scmd_printk(KERN_INFO, cmd, " ");

	scsi_show_result(cmd->result);

	const char *hb_string = scsi_hostbyte_string(cmd->result);

	const char *db_string = scsi_driverbyte_string(cmd->result);



	if (hb_string || db_string)

		scmd_printk(KERN_INFO, cmd,

			    "Result: hostbyte=%s driverbyte=%s",

			    hb_string ? hb_string : "invalid",

			    db_string ? db_string : "invalid");

	else

		scmd_printk(KERN_INFO, cmd,

			    "Result: hostbyte=0x%02x driverbyte=0x%02x",

			    host_byte(cmd->result), driver_byte(cmd->result));

}

EXPORT_SYMBOL(scsi_print_result);

include/scsi/scsi_dbg.h

+2 −0
Original line number Diff line number Diff line
@@ -19,6 +19,8 @@ extern void __scsi_print_sense(const struct scsi_device *, const char *name, 
			       int sense_len);

extern void scsi_show_result(int);

extern void scsi_print_result(struct scsi_cmnd *);

extern const char *scsi_hostbyte_string(int);

extern const char *scsi_driverbyte_string(int);

extern const char *scsi_sense_key_string(unsigned char);

extern const char *scsi_extd_sense_format(unsigned char, unsigned char,

					  const char **);