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-rw-r--r--drivers/scsi/device_handler/scsi_dh_alua.c2
-rw-r--r--drivers/scsi/device_handler/scsi_dh_emc.c2
-rw-r--r--drivers/scsi/device_handler/scsi_dh_hp_sw.c4
-rw-r--r--drivers/scsi/device_handler/scsi_dh_rdac.c2
-rw-r--r--drivers/scsi/osd/osd_initiator.c4
-rw-r--r--drivers/scsi/osst.c2
-rw-r--r--drivers/scsi/scsi_error.c3
-rw-r--r--drivers/scsi/scsi_lib.c2
-rw-r--r--drivers/scsi/sg.c51
-rw-r--r--drivers/scsi/st.c2
10 files changed, 44 insertions, 30 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 3a8ba3e433d..e8124e9255f 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -111,6 +111,7 @@ static struct request *get_alua_req(struct scsi_device *sdev,
"%s: blk_get_request failed\n", __func__);
return NULL;
}
+ blk_rq_set_block_pc(rq);
if (buflen && blk_rq_map_kern(q, rq, buffer, buflen, GFP_NOIO)) {
blk_put_request(rq);
@@ -119,7 +120,6 @@ static struct request *get_alua_req(struct scsi_device *sdev,
return NULL;
}
- rq->cmd_type = REQ_TYPE_BLOCK_PC;
rq->cmd_flags |= REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT |
REQ_FAILFAST_DRIVER;
rq->retries = ALUA_FAILOVER_RETRIES;
diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c
index e1c8be06de9..6f07f7fe3aa 100644
--- a/drivers/scsi/device_handler/scsi_dh_emc.c
+++ b/drivers/scsi/device_handler/scsi_dh_emc.c
@@ -280,6 +280,7 @@ static struct request *get_req(struct scsi_device *sdev, int cmd,
return NULL;
}
+ blk_rq_set_block_pc(rq);
rq->cmd_len = COMMAND_SIZE(cmd);
rq->cmd[0] = cmd;
@@ -304,7 +305,6 @@ static struct request *get_req(struct scsi_device *sdev, int cmd,
break;
}
- rq->cmd_type = REQ_TYPE_BLOCK_PC;
rq->cmd_flags |= REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT |
REQ_FAILFAST_DRIVER;
rq->timeout = CLARIION_TIMEOUT;
diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
index 084062bb8ee..e9d9fea9e27 100644
--- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c
+++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
@@ -120,7 +120,7 @@ retry:
if (!req)
return SCSI_DH_RES_TEMP_UNAVAIL;
- req->cmd_type = REQ_TYPE_BLOCK_PC;
+ blk_rq_set_block_pc(req);
req->cmd_flags |= REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT |
REQ_FAILFAST_DRIVER;
req->cmd_len = COMMAND_SIZE(TEST_UNIT_READY);
@@ -250,7 +250,7 @@ static int hp_sw_start_stop(struct hp_sw_dh_data *h)
if (!req)
return SCSI_DH_RES_TEMP_UNAVAIL;
- req->cmd_type = REQ_TYPE_BLOCK_PC;
+ blk_rq_set_block_pc(req);
req->cmd_flags |= REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT |
REQ_FAILFAST_DRIVER;
req->cmd_len = COMMAND_SIZE(START_STOP);
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 20c4557f5ab..0439652c2d4 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -279,6 +279,7 @@ static struct request *get_rdac_req(struct scsi_device *sdev,
"get_rdac_req: blk_get_request failed.\n");
return NULL;
}
+ blk_rq_set_block_pc(rq);
if (buflen && blk_rq_map_kern(q, rq, buffer, buflen, GFP_NOIO)) {
blk_put_request(rq);
@@ -287,7 +288,6 @@ static struct request *get_rdac_req(struct scsi_device *sdev,
return NULL;
}
- rq->cmd_type = REQ_TYPE_BLOCK_PC;
rq->cmd_flags |= REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT |
REQ_FAILFAST_DRIVER;
rq->retries = RDAC_RETRIES;
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index c06b8e5aa2c..9ad3ac77fd9 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -1566,6 +1566,7 @@ static struct request *_make_request(struct request_queue *q, bool has_write,
if (unlikely(!req))
return ERR_PTR(-ENOMEM);
+ blk_rq_set_block_pc(req);
return req;
}
}
@@ -1586,7 +1587,6 @@ static int _init_blk_request(struct osd_request *or,
}
or->request = req;
- req->cmd_type = REQ_TYPE_BLOCK_PC;
req->cmd_flags |= REQ_QUIET;
req->timeout = or->timeout;
@@ -1604,7 +1604,7 @@ static int _init_blk_request(struct osd_request *or,
ret = PTR_ERR(req);
goto out;
}
- req->cmd_type = REQ_TYPE_BLOCK_PC;
+ blk_rq_set_block_pc(req);
or->in.req = or->request->next_rq = req;
}
} else if (has_in)
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 21883a2d632..0727ea7cc38 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -365,7 +365,7 @@ static int osst_execute(struct osst_request *SRpnt, const unsigned char *cmd,
if (!req)
return DRIVER_ERROR << 24;
- req->cmd_type = REQ_TYPE_BLOCK_PC;
+ blk_rq_set_block_pc(req);
req->cmd_flags |= REQ_QUIET;
SRpnt->bio = NULL;
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 185971c2b41..65955f7c22f 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1643,6 +1643,8 @@ static void scsi_eh_lock_door(struct scsi_device *sdev)
*/
req = blk_get_request(sdev->request_queue, READ, GFP_KERNEL);
+ blk_rq_set_block_pc(req);
+
req->cmd[0] = ALLOW_MEDIUM_REMOVAL;
req->cmd[1] = 0;
req->cmd[2] = 0;
@@ -1652,7 +1654,6 @@ static void scsi_eh_lock_door(struct scsi_device *sdev)
req->cmd_len = COMMAND_SIZE(req->cmd[0]);
- req->cmd_type = REQ_TYPE_BLOCK_PC;
req->cmd_flags |= REQ_QUIET;
req->timeout = 10 * HZ;
req->retries = 5;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 6f1bf55db91..302b6a815e4 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -217,6 +217,7 @@ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
req = blk_get_request(sdev->request_queue, write, __GFP_WAIT);
if (!req)
return ret;
+ blk_rq_set_block_pc(req);
if (bufflen && blk_rq_map_kern(sdev->request_queue, req,
buffer, bufflen, __GFP_WAIT))
@@ -228,7 +229,6 @@ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
req->sense_len = 0;
req->retries = retries;
req->timeout = timeout;
- req->cmd_type = REQ_TYPE_BLOCK_PC;
req->cmd_flags |= flags | REQ_QUIET | REQ_PREEMPT;
/*
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 72e2478cb45..1224e762353 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -7,9 +7,7 @@
* Original driver (sg.c):
* Copyright (C) 1992 Lawrence Foard
* Version 2 and 3 extensions to driver:
- * Copyright (C) 1998 - 2005 Douglas Gilbert
- *
- * Modified 19-JAN-1998 Richard Gooch <rgooch@atnf.csiro.au> Devfs support
+ * Copyright (C) 1998 - 2014 Douglas Gilbert
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -18,11 +16,11 @@
*
*/
-static int sg_version_num = 30534; /* 2 digits for each component */
-#define SG_VERSION_STR "3.5.34"
+static int sg_version_num = 30536; /* 2 digits for each component */
+#define SG_VERSION_STR "3.5.36"
/*
- * D. P. Gilbert (dgilbert@interlog.com, dougg@triode.net.au), notes:
+ * D. P. Gilbert (dgilbert@interlog.com), notes:
* - scsi logging is available via SCSI_LOG_TIMEOUT macros. First
* the kernel/module needs to be built with CONFIG_SCSI_LOGGING
* (otherwise the macros compile to empty statements).
@@ -63,7 +61,7 @@ static int sg_version_num = 30534; /* 2 digits for each component */
#ifdef CONFIG_SCSI_PROC_FS
#include <linux/proc_fs.h>
-static char *sg_version_date = "20061027";
+static char *sg_version_date = "20140603";
static int sg_proc_init(void);
static void sg_proc_cleanup(void);
@@ -73,6 +71,12 @@ static void sg_proc_cleanup(void);
#define SG_MAX_DEVS 32768
+/* SG_MAX_CDB_SIZE should be 260 (spc4r37 section 3.1.30) however the type
+ * of sg_io_hdr::cmd_len can only represent 255. All SCSI commands greater
+ * than 16 bytes are "variable length" whose length is a multiple of 4
+ */
+#define SG_MAX_CDB_SIZE 252
+
/*
* Suppose you want to calculate the formula muldiv(x,m,d)=int(x * m / d)
* Then when using 32 bit integers x * m may overflow during the calculation.
@@ -159,7 +163,7 @@ typedef struct sg_fd { /* holds the state of a file descriptor */
char force_packid; /* 1 -> pack_id input to read(), 0 -> ignored */
volatile char closed; /* 1 -> fd closed but request(s) outstanding */
char cmd_q; /* 1 -> allow command queuing, 0 -> don't */
- char next_cmd_len; /* 0 -> automatic (def), >0 -> use on next write() */
+ unsigned char next_cmd_len; /* 0: automatic, >0: use on next write() */
char keep_orphan; /* 0 -> drop orphan (def), 1 -> keep for read() */
char mmap_called; /* 0 -> mmap() never called on this fd */
struct kref f_ref;
@@ -542,7 +546,7 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
Sg_request *srp;
struct sg_header old_hdr;
sg_io_hdr_t *hp;
- unsigned char cmnd[MAX_COMMAND_SIZE];
+ unsigned char cmnd[SG_MAX_CDB_SIZE];
if (unlikely(segment_eq(get_fs(), KERNEL_DS)))
return -EINVAL;
@@ -577,12 +581,6 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
buf += SZ_SG_HEADER;
__get_user(opcode, buf);
if (sfp->next_cmd_len > 0) {
- if (sfp->next_cmd_len > MAX_COMMAND_SIZE) {
- SCSI_LOG_TIMEOUT(1, printk("sg_write: command length too long\n"));
- sfp->next_cmd_len = 0;
- sg_remove_request(sfp, srp);
- return -EIO;
- }
cmd_size = sfp->next_cmd_len;
sfp->next_cmd_len = 0; /* reset so only this write() effected */
} else {
@@ -654,7 +652,7 @@ sg_new_write(Sg_fd *sfp, struct file *file, const char __user *buf,
int k;
Sg_request *srp;
sg_io_hdr_t *hp;
- unsigned char cmnd[MAX_COMMAND_SIZE];
+ unsigned char cmnd[SG_MAX_CDB_SIZE];
int timeout;
unsigned long ul_timeout;
@@ -961,6 +959,8 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
result = get_user(val, ip);
if (result)
return result;
+ if (val > SG_MAX_CDB_SIZE)
+ return -ENOMEM;
sfp->next_cmd_len = (val > 0) ? val : 0;
return 0;
case SG_GET_VERSION_NUM:
@@ -1647,18 +1647,29 @@ static int sg_start_req(Sg_request *srp, unsigned char *cmd)
struct request_queue *q = sfp->parentdp->device->request_queue;
struct rq_map_data *md, map_data;
int rw = hp->dxfer_direction == SG_DXFER_TO_DEV ? WRITE : READ;
+ unsigned char *long_cmdp = NULL;
SCSI_LOG_TIMEOUT(4, printk(KERN_INFO "sg_start_req: dxfer_len=%d\n",
dxfer_len));
+ if (hp->cmd_len > BLK_MAX_CDB) {
+ long_cmdp = kzalloc(hp->cmd_len, GFP_KERNEL);
+ if (!long_cmdp)
+ return -ENOMEM;
+ }
+
rq = blk_get_request(q, rw, GFP_ATOMIC);
- if (!rq)
+ if (!rq) {
+ kfree(long_cmdp);
return -ENOMEM;
+ }
- memcpy(rq->cmd, cmd, hp->cmd_len);
+ blk_rq_set_block_pc(rq);
+ if (hp->cmd_len > BLK_MAX_CDB)
+ rq->cmd = long_cmdp;
+ memcpy(rq->cmd, cmd, hp->cmd_len);
rq->cmd_len = hp->cmd_len;
- rq->cmd_type = REQ_TYPE_BLOCK_PC;
srp->rq = rq;
rq->end_io_data = srp;
@@ -1744,6 +1755,8 @@ static int sg_finish_rem_req(Sg_request * srp)
if (srp->bio)
ret = blk_rq_unmap_user(srp->bio);
+ if (srp->rq->cmd != srp->rq->__cmd)
+ kfree(srp->rq->cmd);
blk_put_request(srp->rq);
}
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index a3eb263e032..b99047a19a2 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -488,7 +488,7 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd,
if (!req)
return DRIVER_ERROR << 24;
- req->cmd_type = REQ_TYPE_BLOCK_PC;
+ blk_rq_set_block_pc(req);
req->cmd_flags |= REQ_QUIET;
mdata->null_mapped = 1;
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-20 03:26:47 +0000