From: Harald Freudenberger <freude@linux.ibm.com>
Date: Tue, 15 Sep 2020 17:01:58 +0200
Subject: s390/zcrypt: remove set_fs() invocation in zcrypt device driver
Git-commit: 52f72feba9dbe4fac848ae0d90bc0b85b17f91bc
Patch-mainline: v5.10-rc1
References: jsc#SLE-13815 bsc#1178402 LTC#186349
This patch reworks the zcrypt device driver so that the set_fs()
invocation is not needed any more. Instead there is a new flag bool
userspace passed through all the functions which tells if the pointer
arguments are userspace or kernelspace. Together with the two new
inline functions z_copy_from_user() and z_copy_to_user() which either
invoke copy_from_user (userspace is true) or memcpy (userspace is
false) the zcrypt dd and the AP bus now has no requirement for
the set_fs() functionality any more.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/s390/crypto/zcrypt_api.c | 30 ++++++-------
drivers/s390/crypto/zcrypt_api.h | 26 ++++++++++-
drivers/s390/crypto/zcrypt_ccamisc.c | 32 +++----------
drivers/s390/crypto/zcrypt_ep11misc.c | 28 ++----------
drivers/s390/crypto/zcrypt_msgtype6.c | 78 +++++++++++++++++-----------------
drivers/s390/crypto/zcrypt_msgtype6.h | 4 -
6 files changed, 92 insertions(+), 106 deletions(-)
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -806,7 +806,7 @@ out:
return rc;
}
-static long _zcrypt_send_cprb(struct ap_perms *perms,
+static long _zcrypt_send_cprb(bool userspace, struct ap_perms *perms,
struct ica_xcRB *xcRB)
{
struct zcrypt_card *zc, *pref_zc;
@@ -822,7 +822,7 @@ static long _zcrypt_send_cprb(struct ap_
xcRB->status = 0;
ap_init_message(&ap_msg);
- rc = get_cprb_fc(xcRB, &ap_msg, &func_code, &domain);
+ rc = get_cprb_fc(userspace, xcRB, &ap_msg, &func_code, &domain);
if (rc)
goto out;
@@ -887,7 +887,7 @@ static long _zcrypt_send_cprb(struct ap_
if (*domain == AUTOSEL_DOM)
*domain = AP_QID_QUEUE(qid);
- rc = pref_zq->ops->send_cprb(pref_zq, xcRB, &ap_msg);
+ rc = pref_zq->ops->send_cprb(userspace, pref_zq, xcRB, &ap_msg);
spin_lock(&zcrypt_list_lock);
zcrypt_drop_queue(pref_zc, pref_zq, mod, weight);
@@ -902,7 +902,7 @@ out:
long zcrypt_send_cprb(struct ica_xcRB *xcRB)
{
- return _zcrypt_send_cprb(&ap_perms, xcRB);
+ return _zcrypt_send_cprb(false, &ap_perms, xcRB);
}
EXPORT_SYMBOL(zcrypt_send_cprb);
@@ -933,7 +933,7 @@ static bool is_desired_ep11_queue(unsign
return false;
}
-static long _zcrypt_send_ep11_cprb(struct ap_perms *perms,
+static long _zcrypt_send_ep11_cprb(bool userspace, struct ap_perms *perms,
struct ep11_urb *xcrb)
{
struct zcrypt_card *zc, *pref_zc;
@@ -965,7 +965,7 @@ static long _zcrypt_send_ep11_cprb(struc
}
uptr = (struct ep11_target_dev __force __user *) xcrb->targets;
- if (copy_from_user(targets, uptr,
+ if (z_copy_from_user(userspace, targets, uptr,
target_num * sizeof(*targets))) {
func_code = 0;
rc = -EFAULT;
@@ -973,7 +973,7 @@ static long _zcrypt_send_ep11_cprb(struc
}
}
- rc = get_ep11cprb_fc(xcrb, &ap_msg, &func_code);
+ rc = get_ep11cprb_fc(userspace, xcrb, &ap_msg, &func_code);
if (rc)
goto out_free;
@@ -1024,7 +1024,7 @@ static long _zcrypt_send_ep11_cprb(struc
}
qid = pref_zq->queue->qid;
- rc = pref_zq->ops->send_ep11_cprb(pref_zq, xcrb, &ap_msg);
+ rc = pref_zq->ops->send_ep11_cprb(userspace, pref_zq, xcrb, &ap_msg);
spin_lock(&zcrypt_list_lock);
zcrypt_drop_queue(pref_zc, pref_zq, mod, weight);
@@ -1041,7 +1041,7 @@ out:
long zcrypt_send_ep11_cprb(struct ep11_urb *xcrb)
{
- return _zcrypt_send_ep11_cprb(&ap_perms, xcrb);
+ return _zcrypt_send_ep11_cprb(false, &ap_perms, xcrb);
}
EXPORT_SYMBOL(zcrypt_send_ep11_cprb);
@@ -1362,12 +1362,12 @@ static int zsecsendcprb_ioctl(struct ap_
if (copy_from_user(&xcRB, uxcRB, sizeof(xcRB)))
return -EFAULT;
do {
- rc = _zcrypt_send_cprb(perms, &xcRB);
+ rc = _zcrypt_send_cprb(true, perms, &xcRB);
} while (rc == -EAGAIN);
/* on failure: retry once again after a requested rescan */
if ((rc == -ENODEV) && (zcrypt_process_rescan()))
do {
- rc = _zcrypt_send_cprb(perms, &xcRB);
+ rc = _zcrypt_send_cprb(true, perms, &xcRB);
} while (rc == -EAGAIN);
if (rc)
ZCRYPT_DBF(DBF_DEBUG, "ioctl ZSENDCPRB rc=%d status=0x%x\n",
@@ -1386,12 +1386,12 @@ static int zsendep11cprb_ioctl(struct ap
if (copy_from_user(&xcrb, uxcrb, sizeof(xcrb)))
return -EFAULT;
do {
- rc = _zcrypt_send_ep11_cprb(perms, &xcrb);
+ rc = _zcrypt_send_ep11_cprb(true, perms, &xcrb);
} while (rc == -EAGAIN);
/* on failure: retry once again after a requested rescan */
if ((rc == -ENODEV) && (zcrypt_process_rescan()))
do {
- rc = _zcrypt_send_ep11_cprb(perms, &xcrb);
+ rc = _zcrypt_send_ep11_cprb(true, perms, &xcrb);
} while (rc == -EAGAIN);
if (rc)
ZCRYPT_DBF(DBF_DEBUG, "ioctl ZSENDEP11CPRB rc=%d\n", rc);
@@ -1664,12 +1664,12 @@ static long trans_xcRB32(struct ap_perms
xcRB64.priority_window = xcRB32.priority_window;
xcRB64.status = xcRB32.status;
do {
- rc = _zcrypt_send_cprb(perms, &xcRB64);
+ rc = _zcrypt_send_cprb(true, perms, &xcRB64);
} while (rc == -EAGAIN);
/* on failure: retry once again after a requested rescan */
if ((rc == -ENODEV) && (zcrypt_process_rescan()))
do {
- rc = _zcrypt_send_cprb(perms, &xcRB64);
+ rc = _zcrypt_send_cprb(true, perms, &xcRB64);
} while (rc == -EAGAIN);
xcRB32.reply_control_blk_length = xcRB64.reply_control_blk_length;
xcRB32.reply_data_length = xcRB64.reply_data_length;
--- a/drivers/s390/crypto/zcrypt_api.h
+++ b/drivers/s390/crypto/zcrypt_api.h
@@ -59,9 +59,9 @@ struct zcrypt_ops {
long (*rsa_modexpo)(struct zcrypt_queue *, struct ica_rsa_modexpo *);
long (*rsa_modexpo_crt)(struct zcrypt_queue *,
struct ica_rsa_modexpo_crt *);
- long (*send_cprb)(struct zcrypt_queue *, struct ica_xcRB *,
+ long (*send_cprb)(bool userspace, struct zcrypt_queue *, struct ica_xcRB *,
struct ap_message *);
- long (*send_ep11_cprb)(struct zcrypt_queue *, struct ep11_urb *,
+ long (*send_ep11_cprb)(bool userspace, struct zcrypt_queue *, struct ep11_urb *,
struct ap_message *);
long (*rng)(struct zcrypt_queue *, char *, struct ap_message *);
struct list_head list; /* zcrypt ops list. */
@@ -145,4 +145,26 @@ void zcrypt_device_status_mask_ext(struc
int zcrypt_device_status_ext(int card, int queue,
struct zcrypt_device_status_ext *devstatus);
+static inline unsigned long z_copy_from_user(bool userspace,
+ void *to,
+ const void __user *from,
+ unsigned long n)
+{
+ if (likely(userspace))
+ return copy_from_user(to, from, n);
+ memcpy(to, (void __force *) from, n);
+ return 0;
+}
+
+static inline unsigned long z_copy_to_user(bool userspace,
+ void __user *to,
+ const void *from,
+ unsigned long n)
+{
+ if (likely(userspace))
+ return copy_to_user(to, from, n);
+ memcpy((void __force *) to, from, n);
+ return 0;
+}
+
#endif /* _ZCRYPT_API_H_ */
--- a/drivers/s390/crypto/zcrypt_ccamisc.c
+++ b/drivers/s390/crypto/zcrypt_ccamisc.c
@@ -249,24 +249,6 @@ static inline void prep_xcrb(struct ica_
}
/*
- * Helper function which calls zcrypt_send_cprb with
- * memory management segment adjusted to kernel space
- * so that the copy_from_user called within this
- * function do in fact copy from kernel space.
- */
-static inline int _zcrypt_send_cprb(struct ica_xcRB *xcrb)
-{
- int rc;
- mm_segment_t old_fs = get_fs();
-
- set_fs(KERNEL_DS);
- rc = zcrypt_send_cprb(xcrb);
- set_fs(old_fs);
-
- return rc;
-}
-
-/*
* Generate (random) CCA AES DATA secure key.
*/
int cca_genseckey(u16 cardnr, u16 domain,
@@ -359,7 +341,7 @@ int cca_genseckey(u16 cardnr, u16 domain
prep_xcrb(&xcrb, cardnr, preqcblk, prepcblk);
/* forward xcrb with request CPRB and reply CPRB to zcrypt dd */
- rc = _zcrypt_send_cprb(&xcrb);
+ rc = zcrypt_send_cprb(&xcrb);
if (rc) {
DEBUG_ERR("%s zcrypt_send_cprb (cardnr=%d domain=%d) failed, errno %d\n",
__func__, (int) cardnr, (int) domain, rc);
@@ -497,7 +479,7 @@ int cca_clr2seckey(u16 cardnr, u16 domai
prep_xcrb(&xcrb, cardnr, preqcblk, prepcblk);
/* forward xcrb with request CPRB and reply CPRB to zcrypt dd */
- rc = _zcrypt_send_cprb(&xcrb);
+ rc = zcrypt_send_cprb(&xcrb);
if (rc) {
DEBUG_ERR("%s zcrypt_send_cprb (cardnr=%d domain=%d) failed, rc=%d\n",
__func__, (int) cardnr, (int) domain, rc);
@@ -624,7 +606,7 @@ int cca_sec2protkey(u16 cardnr, u16 doma
prep_xcrb(&xcrb, cardnr, preqcblk, prepcblk);
/* forward xcrb with request CPRB and reply CPRB to zcrypt dd */
- rc = _zcrypt_send_cprb(&xcrb);
+ rc = zcrypt_send_cprb(&xcrb);
if (rc) {
DEBUG_ERR("%s zcrypt_send_cprb (cardnr=%d domain=%d) failed, rc=%d\n",
__func__, (int) cardnr, (int) domain, rc);
@@ -850,7 +832,7 @@ int cca_gencipherkey(u16 cardnr, u16 dom
prep_xcrb(&xcrb, cardnr, preqcblk, prepcblk);
/* forward xcrb with request CPRB and reply CPRB to zcrypt dd */
- rc = _zcrypt_send_cprb(&xcrb);
+ rc = zcrypt_send_cprb(&xcrb);
if (rc) {
DEBUG_ERR(
"%s zcrypt_send_cprb (cardnr=%d domain=%d) failed, rc=%d\n",
@@ -1018,7 +1000,7 @@ static int _ip_cprb_helper(u16 cardnr, u
prep_xcrb(&xcrb, cardnr, preqcblk, prepcblk);
/* forward xcrb with request CPRB and reply CPRB to zcrypt dd */
- rc = _zcrypt_send_cprb(&xcrb);
+ rc = zcrypt_send_cprb(&xcrb);
if (rc) {
DEBUG_ERR(
"%s zcrypt_send_cprb (cardnr=%d domain=%d) failed, rc=%d\n",
@@ -1235,7 +1217,7 @@ int cca_cipher2protkey(u16 cardnr, u16 d
prep_xcrb(&xcrb, cardnr, preqcblk, prepcblk);
/* forward xcrb with request CPRB and reply CPRB to zcrypt dd */
- rc = _zcrypt_send_cprb(&xcrb);
+ rc = zcrypt_send_cprb(&xcrb);
if (rc) {
DEBUG_ERR(
"%s zcrypt_send_cprb (cardnr=%d domain=%d) failed, rc=%d\n",
@@ -1366,7 +1348,7 @@ int cca_query_crypto_facility(u16 cardnr
prep_xcrb(&xcrb, cardnr, preqcblk, prepcblk);
/* forward xcrb with request CPRB and reply CPRB to zcrypt dd */
- rc = _zcrypt_send_cprb(&xcrb);
+ rc = zcrypt_send_cprb(&xcrb);
if (rc) {
DEBUG_ERR("%s zcrypt_send_cprb (cardnr=%d domain=%d) failed, rc=%d\n",
__func__, (int) cardnr, (int) domain, rc);
--- a/drivers/s390/crypto/zcrypt_ep11misc.c
+++ b/drivers/s390/crypto/zcrypt_ep11misc.c
@@ -170,24 +170,6 @@ int ep11_check_aeskeyblob(debug_info_t *
EXPORT_SYMBOL(ep11_check_aeskeyblob);
/*
- * Helper function which calls zcrypt_send_ep11_cprb with
- * memory management segment adjusted to kernel space
- * so that the copy_from_user called within this
- * function do in fact copy from kernel space.
- */
-static inline int _zcrypt_send_ep11_cprb(struct ep11_urb *urb)
-{
- int rc;
- mm_segment_t old_fs = get_fs();
-
- set_fs(KERNEL_DS);
- rc = zcrypt_send_ep11_cprb(urb);
- set_fs(old_fs);
-
- return rc;
-}
-
-/*
* Allocate and prepare ep11 cprb plus additional payload.
*/
static inline struct ep11_cprb *alloc_cprb(size_t payload_len)
@@ -400,7 +382,7 @@ static int ep11_query_info(u16 cardnr, u
req, sizeof(*req) + sizeof(*req_pl),
rep, sizeof(*rep) + sizeof(*rep_pl) + buflen);
- rc = _zcrypt_send_ep11_cprb(urb);
+ rc = zcrypt_send_ep11_cprb(urb);
if (rc) {
DEBUG_ERR(
"%s zcrypt_send_ep11_cprb(card=%d dom=%d) failed, rc=%d\n",
@@ -638,7 +620,7 @@ int ep11_genaeskey(u16 card, u16 domain,
req, sizeof(*req) + sizeof(*req_pl),
rep, sizeof(*rep) + sizeof(*rep_pl));
- rc = _zcrypt_send_ep11_cprb(urb);
+ rc = zcrypt_send_ep11_cprb(urb);
if (rc) {
DEBUG_ERR(
"%s zcrypt_send_ep11_cprb(card=%d dom=%d) failed, rc=%d\n",
@@ -758,7 +740,7 @@ static int ep11_cryptsingle(u16 card, u1
req, sizeof(*req) + req_pl_size,
rep, sizeof(*rep) + rep_pl_size);
- rc = _zcrypt_send_ep11_cprb(urb);
+ rc = zcrypt_send_ep11_cprb(urb);
if (rc) {
DEBUG_ERR(
"%s zcrypt_send_ep11_cprb(card=%d dom=%d) failed, rc=%d\n",
@@ -906,7 +888,7 @@ static int ep11_unwrapkey(u16 card, u16
req, sizeof(*req) + req_pl_size,
rep, sizeof(*rep) + sizeof(*rep_pl));
- rc = _zcrypt_send_ep11_cprb(urb);
+ rc = zcrypt_send_ep11_cprb(urb);
if (rc) {
DEBUG_ERR(
"%s zcrypt_send_ep11_cprb(card=%d dom=%d) failed, rc=%d\n",
@@ -1034,7 +1016,7 @@ static int ep11_wrapkey(u16 card, u16 do
req, sizeof(*req) + req_pl_size,
rep, sizeof(*rep) + sizeof(*rep_pl));
- rc = _zcrypt_send_ep11_cprb(urb);
+ rc = zcrypt_send_ep11_cprb(urb);
if (rc) {
DEBUG_ERR(
"%s zcrypt_send_ep11_cprb(card=%d dom=%d) failed, rc=%d\n",
--- a/drivers/s390/crypto/zcrypt_msgtype6.c
+++ b/drivers/s390/crypto/zcrypt_msgtype6.c
@@ -388,7 +388,7 @@ struct type86_fmt2_msg {
struct type86_fmt2_ext fmt2;
} __packed;
-static int XCRB_msg_to_type6CPRB_msgX(struct ap_message *ap_msg,
+static int XCRB_msg_to_type6CPRB_msgX(bool userspace, struct ap_message *ap_msg,
struct ica_xcRB *xcRB,
unsigned int *fcode,
unsigned short **dom)
@@ -465,8 +465,8 @@ static int XCRB_msg_to_type6CPRB_msgX(st
msg->hdr.FromCardLen2 = xcRB->reply_data_length;
/* prepare CPRB */
- if (copy_from_user(&(msg->cprbx), xcRB->request_control_blk_addr,
- xcRB->request_control_blk_length))
+ if (z_copy_from_user(userspace, &(msg->cprbx), xcRB->request_control_blk_addr,
+ xcRB->request_control_blk_length))
return -EFAULT;
if (msg->cprbx.cprb_len + sizeof(msg->hdr.function_code) >
xcRB->request_control_blk_length)
@@ -484,16 +484,16 @@ static int XCRB_msg_to_type6CPRB_msgX(st
/* copy data block */
if (xcRB->request_data_length &&
- copy_from_user(req_data, xcRB->request_data_address,
- xcRB->request_data_length))
+ z_copy_from_user(userspace, req_data, xcRB->request_data_address,
+ xcRB->request_data_length))
return -EFAULT;
return 0;
}
-static int xcrb_msg_to_type6_ep11cprb_msgx(struct ap_message *ap_msg,
- struct ep11_urb *xcRB,
- unsigned int *fcode)
+static int xcrb_msg_to_type6_ep11cprb_msgx(bool userspace, struct ap_message *ap_msg,
+ struct ep11_urb *xcRB,
+ unsigned int *fcode)
{
unsigned int lfmt;
static struct type6_hdr static_type6_ep11_hdr = {
@@ -543,8 +543,8 @@ static int xcrb_msg_to_type6_ep11cprb_ms
msg->hdr.FromCardLen1 = xcRB->resp_len;
/* Import CPRB data from the ioctl input parameter */
- if (copy_from_user(&(msg->cprbx.cprb_len),
- (char __force __user *)xcRB->req, xcRB->req_len)) {
+ if (z_copy_from_user(userspace, &(msg->cprbx.cprb_len),
+ (char __force __user *)xcRB->req, xcRB->req_len)) {
return -EFAULT;
}
@@ -707,7 +707,7 @@ static int convert_type86_ica(struct zcr
*
* Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
*/
-static int convert_type86_xcrb(struct zcrypt_queue *zq,
+static int convert_type86_xcrb(bool userspace, struct zcrypt_queue *zq,
struct ap_message *reply,
struct ica_xcRB *xcRB)
{
@@ -715,15 +715,15 @@ static int convert_type86_xcrb(struct zc
char *data = reply->msg;
/* Copy CPRB to user */
- if (copy_to_user(xcRB->reply_control_blk_addr,
- data + msg->fmt2.offset1, msg->fmt2.count1))
+ if (z_copy_to_user(userspace, xcRB->reply_control_blk_addr,
+ data + msg->fmt2.offset1, msg->fmt2.count1))
return -EFAULT;
xcRB->reply_control_blk_length = msg->fmt2.count1;
/* Copy data buffer to user */
if (msg->fmt2.count2)
- if (copy_to_user(xcRB->reply_data_addr,
- data + msg->fmt2.offset2, msg->fmt2.count2))
+ if (z_copy_to_user(userspace, xcRB->reply_data_addr,
+ data + msg->fmt2.offset2, msg->fmt2.count2))
return -EFAULT;
xcRB->reply_data_length = msg->fmt2.count2;
return 0;
@@ -738,7 +738,7 @@ static int convert_type86_xcrb(struct zc
*
* Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
*/
-static int convert_type86_ep11_xcrb(struct zcrypt_queue *zq,
+static int convert_type86_ep11_xcrb(bool userspace, struct zcrypt_queue *zq,
struct ap_message *reply,
struct ep11_urb *xcRB)
{
@@ -749,8 +749,8 @@ static int convert_type86_ep11_xcrb(stru
return -EINVAL;
/* Copy response CPRB to user */
- if (copy_to_user((char __force __user *)xcRB->resp,
- data + msg->fmt2.offset1, msg->fmt2.count1))
+ if (z_copy_to_user(userspace, (char __force __user *)xcRB->resp,
+ data + msg->fmt2.offset1, msg->fmt2.count1))
return -EFAULT;
xcRB->resp_len = msg->fmt2.count1;
return 0;
@@ -814,9 +814,9 @@ static int convert_response_ica(struct z
}
}
-static int convert_response_xcrb(struct zcrypt_queue *zq,
- struct ap_message *reply,
- struct ica_xcRB *xcRB)
+static int convert_response_xcrb(bool userspace, struct zcrypt_queue *zq,
+ struct ap_message *reply,
+ struct ica_xcRB *xcRB)
{
struct type86x_reply *msg = reply->msg;
@@ -831,7 +831,7 @@ static int convert_response_xcrb(struct
return convert_error(zq, reply);
}
if (msg->cprbx.cprb_ver_id == 0x02)
- return convert_type86_xcrb(zq, reply, xcRB);
+ return convert_type86_xcrb(userspace, zq, reply, xcRB);
/* fall through - wrong cprb version is an unknown response */
default: /* Unknown response type, this should NEVER EVER happen */
xcRB->status = 0x0008044DL; /* HDD_InvalidParm */
@@ -848,8 +848,8 @@ static int convert_response_xcrb(struct
}
}
-static int convert_response_ep11_xcrb(struct zcrypt_queue *zq,
- struct ap_message *reply, struct ep11_urb *xcRB)
+static int convert_response_ep11_xcrb(bool userspace, struct zcrypt_queue *zq,
+ struct ap_message *reply, struct ep11_urb *xcRB)
{
struct type86_ep11_reply *msg = reply->msg;
@@ -861,7 +861,7 @@ static int convert_response_ep11_xcrb(st
if (msg->hdr.reply_code)
return convert_error(zq, reply);
if (msg->cprbx.cprb_ver_id == 0x04)
- return convert_type86_ep11_xcrb(zq, reply, xcRB);
+ return convert_type86_ep11_xcrb(userspace, zq, reply, xcRB);
/* fall through - wrong cprb version is an unknown resp */
default: /* Unknown response type, this should NEVER EVER happen */
zq->online = 0;
@@ -1095,9 +1095,9 @@ out_free:
* by the caller with ap_init_message(). Also the caller has to
* make sure ap_release_message() is always called even on failure.
*/
-unsigned int get_cprb_fc(struct ica_xcRB *xcRB,
- struct ap_message *ap_msg,
- unsigned int *func_code, unsigned short **dom)
+unsigned int get_cprb_fc(bool userspace, struct ica_xcRB *xcRB,
+ struct ap_message *ap_msg,
+ unsigned int *func_code, unsigned short **dom)
{
struct response_type resp_type = {
.type = CEXXC_RESPONSE_TYPE_XCRB,
@@ -1112,7 +1112,7 @@ unsigned int get_cprb_fc(struct ica_xcRB
ap_msg->private = kmemdup(&resp_type, sizeof(resp_type), GFP_KERNEL);
if (!ap_msg->private)
return -ENOMEM;
- return XCRB_msg_to_type6CPRB_msgX(ap_msg, xcRB, func_code, dom);
+ return XCRB_msg_to_type6CPRB_msgX(userspace, ap_msg, xcRB, func_code, dom);
}
/**
@@ -1122,9 +1122,9 @@ unsigned int get_cprb_fc(struct ica_xcRB
* CEXxC device to the request distributor
* @xcRB: pointer to the send_cprb request buffer
*/
-static long zcrypt_msgtype6_send_cprb(struct zcrypt_queue *zq,
- struct ica_xcRB *xcRB,
- struct ap_message *ap_msg)
+static long zcrypt_msgtype6_send_cprb(bool userspace, struct zcrypt_queue *zq,
+ struct ica_xcRB *xcRB,
+ struct ap_message *ap_msg)
{
int rc;
struct response_type *rtype = (struct response_type *)(ap_msg->private);
@@ -1135,7 +1135,7 @@ static long zcrypt_msgtype6_send_cprb(st
if (rc == 0) {
rc = ap_msg->rc;
if (rc == 0)
- rc = convert_response_xcrb(zq, ap_msg, xcRB);
+ rc = convert_response_xcrb(userspace, zq, ap_msg, xcRB);
} else
/* Signal pending. */
ap_cancel_message(zq->queue, ap_msg);
@@ -1150,9 +1150,9 @@ static long zcrypt_msgtype6_send_cprb(st
* by the caller with ap_init_message(). Also the caller has to
* make sure ap_release_message() is always called even on failure.
*/
-unsigned int get_ep11cprb_fc(struct ep11_urb *xcrb,
- struct ap_message *ap_msg,
- unsigned int *func_code)
+unsigned int get_ep11cprb_fc(bool userspace, struct ep11_urb *xcrb,
+ struct ap_message *ap_msg,
+ unsigned int *func_code)
{
struct response_type resp_type = {
.type = CEXXC_RESPONSE_TYPE_EP11,
@@ -1167,7 +1167,7 @@ unsigned int get_ep11cprb_fc(struct ep11
ap_msg->private = kmemdup(&resp_type, sizeof(resp_type), GFP_KERNEL);
if (!ap_msg->private)
return -ENOMEM;
- return xcrb_msg_to_type6_ep11cprb_msgx(ap_msg, xcrb, func_code);
+ return xcrb_msg_to_type6_ep11cprb_msgx(userspace, ap_msg, xcrb, func_code);
}
/**
@@ -1177,7 +1177,7 @@ unsigned int get_ep11cprb_fc(struct ep11
* CEX4P device to the request distributor
* @xcRB: pointer to the ep11 user request block
*/
-static long zcrypt_msgtype6_send_ep11_cprb(struct zcrypt_queue *zq,
+static long zcrypt_msgtype6_send_ep11_cprb(bool userspace, struct zcrypt_queue *zq,
struct ep11_urb *xcrb,
struct ap_message *ap_msg)
{
@@ -1237,7 +1237,7 @@ static long zcrypt_msgtype6_send_ep11_cp
if (rc == 0) {
rc = ap_msg->rc;
if (rc == 0)
- rc = convert_response_ep11_xcrb(zq, ap_msg, xcrb);
+ rc = convert_response_ep11_xcrb(userspace, zq, ap_msg, xcrb);
} else
/* Signal pending. */
ap_cancel_message(zq->queue, ap_msg);
--- a/drivers/s390/crypto/zcrypt_msgtype6.h
+++ b/drivers/s390/crypto/zcrypt_msgtype6.h
@@ -96,9 +96,9 @@ struct type86_fmt2_ext {
unsigned int offset4; /* 0x00000000 */
} __packed;
-unsigned int get_cprb_fc(struct ica_xcRB *, struct ap_message *,
+unsigned int get_cprb_fc(bool userspace, struct ica_xcRB *, struct ap_message *,
unsigned int *, unsigned short **);
-unsigned int get_ep11cprb_fc(struct ep11_urb *, struct ap_message *,
+unsigned int get_ep11cprb_fc(bool userspace, struct ep11_urb *, struct ap_message *,
unsigned int *);
unsigned int get_rng_fc(struct ap_message *, int *, unsigned int *);