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s390/pkey: introduce dynamic debugging for pkey

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This patch replaces all the s390 debug feature calls with
debug level by dynamic debug calls pr_debug. These calls
are much more flexible and each single invocation can get
enabled/disabled at runtime wheres the s390 debug feature
debug calls have only one knob - enable or disable all in
one bunch.

This patch follows a similar change for the AP bus and
zcrypt device driver code. All this code uses dynamic
debugging with pr_debug and friends for emitting debug
traces now.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Harald Freudenberger 2024-01-30 10:14:47 +01:00 committed by Heiko Carstens
parent 0ccac45295
commit 6d749b4e02
1 changed files with 23 additions and 24 deletions
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47
drivers/s390/crypto/pkey_api.c
View File

@ -44,7 +44,6 @@ MODULE_DESCRIPTION("s390 protected key interface");
static debug_info_t *pkey_dbf_info;
#define PKEY_DBF_DBG(...) debug_sprintf_event(pkey_dbf_info, 6, ##__VA_ARGS__)
#define PKEY_DBF_INFO(...) debug_sprintf_event(pkey_dbf_info, 5, ##__VA_ARGS__)
#define PKEY_DBF_WARN(...) debug_sprintf_event(pkey_dbf_info, 4, ##__VA_ARGS__)
#define PKEY_DBF_ERR(...) debug_sprintf_event(pkey_dbf_info, 3, ##__VA_ARGS__)
@ -244,7 +243,7 @@ static int pkey_skey2pkey(const u8 *key, u8 *protkey,
}
if (rc)
PKEY_DBF_DBG("%s failed rc=%d\n", __func__, rc);
pr_debug("%s failed rc=%d\n", __func__, rc);
return rc;
}
@ -283,7 +282,7 @@ static int pkey_clr2ep11key(const u8 *clrkey, size_t clrkeylen,
out:
kfree(apqns);
if (rc)
PKEY_DBF_DBG("%s failed rc=%d\n", __func__, rc);
pr_debug("%s failed rc=%d\n", __func__, rc);
return rc;
}
@ -320,7 +319,7 @@ static int pkey_ep11key2pkey(const u8 *key, size_t keylen,
out:
kfree(apqns);
if (rc)
PKEY_DBF_DBG("%s failed rc=%d\n", __func__, rc);
pr_debug("%s failed rc=%d\n", __func__, rc);
return rc;
}
@ -351,7 +350,7 @@ static int pkey_verifykey(const struct pkey_seckey *seckey,
if (rc > 0) {
/* key mkvp matches to old master key mkvp */
PKEY_DBF_DBG("%s secure key has old mkvp\n", __func__);
pr_debug("%s secure key has old mkvp\n", __func__);
if (pattributes)
*pattributes |= PKEY_VERIFY_ATTR_OLD_MKVP;
rc = 0;
@ -363,7 +362,7 @@ static int pkey_verifykey(const struct pkey_seckey *seckey,
*pdomain = domain;
out:
PKEY_DBF_DBG("%s rc=%d\n", __func__, rc);
pr_debug("%s rc=%d\n", __func__, rc);
return rc;
}
@ -692,7 +691,7 @@ int pkey_keyblob2pkey(const u8 *key, u32 keylen,
return -EINVAL;
}
PKEY_DBF_DBG("%s rc=%d\n", __func__, rc);
pr_debug("%s rc=%d\n", __func__, rc);
return rc;
}
EXPORT_SYMBOL(pkey_keyblob2pkey);
@ -1356,7 +1355,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
return -EFAULT;
rc = cca_genseckey(kgs.cardnr, kgs.domain,
kgs.keytype, kgs.seckey.seckey);
PKEY_DBF_DBG("%s cca_genseckey()=%d\n", __func__, rc);
pr_debug("%s cca_genseckey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(ugs, &kgs, sizeof(kgs)))
@ -1371,7 +1370,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
return -EFAULT;
rc = cca_clr2seckey(kcs.cardnr, kcs.domain, kcs.keytype,
kcs.clrkey.clrkey, kcs.seckey.seckey);
PKEY_DBF_DBG("%s cca_clr2seckey()=%d\n", __func__, rc);
pr_debug("%s cca_clr2seckey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(ucs, &kcs, sizeof(kcs)))
@ -1389,7 +1388,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = cca_sec2protkey(ksp.cardnr, ksp.domain,
ksp.seckey.seckey, ksp.protkey.protkey,
&ksp.protkey.len, &ksp.protkey.type);
PKEY_DBF_DBG("%s cca_sec2protkey()=%d\n", __func__, rc);
pr_debug("%s cca_sec2protkey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(usp, &ksp, sizeof(ksp)))
@ -1406,7 +1405,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = pkey_clr2protkey(kcp.keytype, kcp.clrkey.clrkey,
kcp.protkey.protkey,
&kcp.protkey.len, &kcp.protkey.type);
PKEY_DBF_DBG("%s pkey_clr2protkey()=%d\n", __func__, rc);
pr_debug("%s pkey_clr2protkey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(ucp, &kcp, sizeof(kcp)))
@ -1422,7 +1421,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
return -EFAULT;
rc = cca_findcard(kfc.seckey.seckey,
&kfc.cardnr, &kfc.domain, 1);
PKEY_DBF_DBG("%s cca_findcard()=%d\n", __func__, rc);
pr_debug("%s cca_findcard()=%d\n", __func__, rc);
if (rc < 0)
break;
if (copy_to_user(ufc, &kfc, sizeof(kfc)))
@ -1438,7 +1437,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
ksp.protkey.len = sizeof(ksp.protkey.protkey);
rc = pkey_skey2pkey(ksp.seckey.seckey, ksp.protkey.protkey,
&ksp.protkey.len, &ksp.protkey.type);
PKEY_DBF_DBG("%s pkey_skey2pkey()=%d\n", __func__, rc);
pr_debug("%s pkey_skey2pkey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(usp, &ksp, sizeof(ksp)))
@ -1453,7 +1452,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
return -EFAULT;
rc = pkey_verifykey(&kvk.seckey, &kvk.cardnr, &kvk.domain,
&kvk.keysize, &kvk.attributes);
PKEY_DBF_DBG("%s pkey_verifykey()=%d\n", __func__, rc);
pr_debug("%s pkey_verifykey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(uvk, &kvk, sizeof(kvk)))
@ -1469,7 +1468,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
kgp.protkey.len = sizeof(kgp.protkey.protkey);
rc = pkey_genprotkey(kgp.keytype, kgp.protkey.protkey,
&kgp.protkey.len, &kgp.protkey.type);
PKEY_DBF_DBG("%s pkey_genprotkey()=%d\n", __func__, rc);
pr_debug("%s pkey_genprotkey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(ugp, &kgp, sizeof(kgp)))
@ -1484,7 +1483,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
return -EFAULT;
rc = pkey_verifyprotkey(kvp.protkey.protkey,
kvp.protkey.len, kvp.protkey.type);
PKEY_DBF_DBG("%s pkey_verifyprotkey()=%d\n", __func__, rc);
pr_debug("%s pkey_verifyprotkey()=%d\n", __func__, rc);
break;
}
case PKEY_KBLOB2PROTK: {
@ -1500,7 +1499,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
ktp.protkey.len = sizeof(ktp.protkey.protkey);
rc = pkey_keyblob2pkey(kkey, ktp.keylen, ktp.protkey.protkey,
&ktp.protkey.len, &ktp.protkey.type);
PKEY_DBF_DBG("%s pkey_keyblob2pkey()=%d\n", __func__, rc);
pr_debug("%s pkey_keyblob2pkey()=%d\n", __func__, rc);
memzero_explicit(kkey, ktp.keylen);
kfree(kkey);
if (rc)
@ -1529,7 +1528,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = pkey_genseckey2(apqns, kgs.apqn_entries,
kgs.type, kgs.size, kgs.keygenflags,
kkey, &klen);
PKEY_DBF_DBG("%s pkey_genseckey2()=%d\n", __func__, rc);
pr_debug("%s pkey_genseckey2()=%d\n", __func__, rc);
kfree(apqns);
if (rc) {
kfree(kkey);
@ -1571,7 +1570,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = pkey_clr2seckey2(apqns, kcs.apqn_entries,
kcs.type, kcs.size, kcs.keygenflags,
kcs.clrkey.clrkey, kkey, &klen);
PKEY_DBF_DBG("%s pkey_clr2seckey2()=%d\n", __func__, rc);
pr_debug("%s pkey_clr2seckey2()=%d\n", __func__, rc);
kfree(apqns);
if (rc) {
kfree(kkey);
@ -1607,7 +1606,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = pkey_verifykey2(kkey, kvk.keylen,
&kvk.cardnr, &kvk.domain,
&kvk.type, &kvk.size, &kvk.flags);
PKEY_DBF_DBG("%s pkey_verifykey2()=%d\n", __func__, rc);
pr_debug("%s pkey_verifykey2()=%d\n", __func__, rc);
kfree(kkey);
if (rc)
break;
@ -1636,7 +1635,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
kkey, ktp.keylen,
ktp.protkey.protkey, &ktp.protkey.len,
&ktp.protkey.type);
PKEY_DBF_DBG("%s pkey_keyblob2pkey2()=%d\n", __func__, rc);
pr_debug("%s pkey_keyblob2pkey2()=%d\n", __func__, rc);
kfree(apqns);
memzero_explicit(kkey, ktp.keylen);
kfree(kkey);
@ -1670,7 +1669,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
}
rc = pkey_apqns4key(kkey, kak.keylen, kak.flags,
apqns, &nr_apqns);
PKEY_DBF_DBG("%s pkey_apqns4key()=%d\n", __func__, rc);
pr_debug("%s pkey_apqns4key()=%d\n", __func__, rc);
kfree(kkey);
if (rc && rc != -ENOSPC) {
kfree(apqns);
@ -1713,7 +1712,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
}
rc = pkey_apqns4keytype(kat.type, kat.cur_mkvp, kat.alt_mkvp,
kat.flags, apqns, &nr_apqns);
PKEY_DBF_DBG("%s pkey_apqns4keytype()=%d\n", __func__, rc);
pr_debug("%s pkey_apqns4keytype()=%d\n", __func__, rc);
if (rc && rc != -ENOSPC) {
kfree(apqns);
break;
@ -1763,7 +1762,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = pkey_keyblob2pkey3(apqns, ktp.apqn_entries,
kkey, ktp.keylen,
protkey, &protkeylen, &ktp.pkeytype);
PKEY_DBF_DBG("%s pkey_keyblob2pkey3()=%d\n", __func__, rc);
pr_debug("%s pkey_keyblob2pkey3()=%d\n", __func__, rc);
kfree(apqns);
memzero_explicit(kkey, ktp.keylen);
kfree(kkey);