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scsi: do not decode sense extras

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Currently we're only decoding sense extras for tape devices.
And even there only for fixed format sense formats.
As this is of rather limited use in the general case we should
be stop trying to decode sense extras; the tape driver does
its own decoding anyway.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Hannes Reinecke 2014-10-24 14:26:51 +02:00 committed by Christoph Hellwig
parent 149d18cc21
commit 15c75f8a6d
1 changed files with 0 additions and 62 deletions
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62
drivers/scsi/constants.c
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@ -1453,67 +1453,6 @@ scsi_dump_sense_buffer(const unsigned char *sense_buffer, int sense_len)
return;
}
static void
scsi_decode_sense_extras(const unsigned char *sense_buffer, int sense_len,
struct scsi_sense_hdr *sshdr)
{
int k, num, res;
if (sshdr->response_code < 0x72)
{
/* only decode extras for "fixed" format now */
char buff[80];
int blen, fixed_valid;
unsigned int info;
fixed_valid = sense_buffer[0] & 0x80;
info = ((sense_buffer[3] << 24) | (sense_buffer[4] << 16) |
(sense_buffer[5] << 8) | sense_buffer[6]);
res = 0;
memset(buff, 0, sizeof(buff));
blen = sizeof(buff) - 1;
if (fixed_valid)
res += snprintf(buff + res, blen - res,
"Info fld=0x%x", info);
if (sense_buffer[2] & 0x80) {
/* current command has read a filemark */
if (res > 0)
res += snprintf(buff + res, blen - res, ", ");
res += snprintf(buff + res, blen - res, "FMK");
}
if (sense_buffer[2] & 0x40) {
/* end-of-medium condition exists */
if (res > 0)
res += snprintf(buff + res, blen - res, ", ");
res += snprintf(buff + res, blen - res, "EOM");
}
if (sense_buffer[2] & 0x20) {
/* incorrect block length requested */
if (res > 0)
res += snprintf(buff + res, blen - res, ", ");
res += snprintf(buff + res, blen - res, "ILI");
}
if (res > 0)
printk("%s\n", buff);
} else if (sshdr->additional_length > 0) {
/* descriptor format with sense descriptors */
num = 8 + sshdr->additional_length;
num = (sense_len < num) ? sense_len : num;
printk("Descriptor sense data with sense descriptors "
"(in hex):");
for (k = 0; k < num; ++k) {
if (0 == (k % 16)) {
printk("\n");
printk(KERN_INFO " ");
}
printk("%02x ", sense_buffer[k]);
}
printk("\n");
}
}
/* Normalize and print sense buffer with name prefix */
void __scsi_print_sense(const struct scsi_device *sdev, const char *name,
const unsigned char *sense_buffer, int sense_len)
@ -1525,7 +1464,6 @@ void __scsi_print_sense(const struct scsi_device *sdev, const char *name,
return;
}
scsi_show_sense_hdr(sdev, name, &sshdr);
scsi_decode_sense_extras(sense_buffer, sense_len, &sshdr);
scsi_show_extd_sense(sdev, name, sshdr.asc, sshdr.ascq);
}
EXPORT_SYMBOL(__scsi_print_sense);