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| author |   Harald Freudenberger <freude@linux.ibm.com> | 2019-08-30 15:57:17 +0200 |
|---|---|---|
| committer |   Vasily Gorbik <gor@linux.ibm.com> | 2020-01-30 13:07:55 +0100 |
| commit | a7367997abb64b5e5a4f6fe6091629440b10da40 (patch) | |
| tree | b16ba69ac2eadeead1b86535b623655c55f310b5 /drivers/s390/crypto/zcrypt_api.c | |
| parent | s390/zcrypt: enable card/domain autoselect on ep11 cprbs (diff) | |
| download | linux-dev-a7367997abb64b5e5a4f6fe6091629440b10da40.tar.xz linux-dev-a7367997abb64b5e5a4f6fe6091629440b10da40.zip | |
s390/zcrypt: ep11 structs rework, export zcrypt_send_ep11_cprb
Minor rework for struct ep11_cprb and struct ep11_urb. Use of u8, u16,
u32 instead of unsigned char. Declare pointers to mem from userspace
with __user to give sparse a chance to check.
Export zcrypt_send_ep11_cprb() function as this function will be
called by code in progress which will build ep11 cprbs within the
zcrypt device driver zoo and send them to EP11 crypto cards.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390/crypto/zcrypt_api.c')
| -rw-r--r-- | drivers/s390/crypto/zcrypt_api.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c index 6244380ce752..0ea7c71bfaa0 100644 --- a/drivers/s390/crypto/zcrypt_api.c +++ b/drivers/s390/crypto/zcrypt_api.c @@ -923,8 +923,8 @@ static bool is_desired_ep11_queue(unsigned int dev_qid, return false; } -static long zcrypt_send_ep11_cprb(struct ap_perms *perms, - struct ep11_urb *xcrb) +static long _zcrypt_send_ep11_cprb(struct ap_perms *perms, + struct ep11_urb *xcrb) { struct zcrypt_card *zc, *pref_zc; struct zcrypt_queue *zq, *pref_zq; @@ -1029,6 +1029,12 @@ out: return rc; } +long zcrypt_send_ep11_cprb(struct ep11_urb *xcrb) +{ + return _zcrypt_send_ep11_cprb(&ap_perms, xcrb); +} +EXPORT_SYMBOL(zcrypt_send_ep11_cprb); + static long zcrypt_rng(char *buffer) { struct zcrypt_card *zc, *pref_zc; @@ -1369,12 +1375,12 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, if (copy_from_user(&xcrb, uxcrb, sizeof(xcrb))) return -EFAULT; do { - rc = zcrypt_send_ep11_cprb(perms, &xcrb); + rc = _zcrypt_send_ep11_cprb(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(perms, &xcrb); } while (rc == -EAGAIN); if (rc) ZCRYPT_DBF(DBF_DEBUG, "ioctl ZSENDEP11CPRB rc=%d\n", rc); |