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Commit dbed23db authored by Harald Freudenberger's avatar Harald Freudenberger Committed by Martin Schwidefsky
Browse files

s390/zcrypt: Add some debug messages on failure. 



Added some dbf debug messages on failure of the most important
ioctl calls. These messages are only enabled with dbf level
6 (debug) and so do not affect the normal operating mode which
uses level 3 (errors and higher).

Signed-off-by: default avatarHarald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent bf10b668

drivers/s390/crypto/zcrypt_api.c

+10 −2
Original line number Diff line number Diff line
@@ -821,8 +821,10 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, 
			do {

				rc = zcrypt_rsa_modexpo(&mex);

			} while (rc == -EAGAIN);

		if (rc)

		if (rc) {

			ZCRYPT_DBF(DBF_DEBUG, "ioctl ICARSAMODEXPO rc=%d", rc);

			return rc;

		}

		return put_user(mex.outputdatalength, &umex->outputdatalength);

	}

	case ICARSACRT: {
@@ -838,8 +840,10 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, 
			do {

				rc = zcrypt_rsa_crt(&crt);

			} while (rc == -EAGAIN);

		if (rc)

		if (rc) {

			ZCRYPT_DBF(DBF_DEBUG, "ioctl ICARSACRT rc=%d", rc);

			return rc;

		}

		return put_user(crt.outputdatalength, &ucrt->outputdatalength);

	}

	case ZSECSENDCPRB: {
@@ -855,6 +859,8 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, 
			do {

				rc = zcrypt_send_cprb(&xcRB);

			} while (rc == -EAGAIN);

		if (rc)

			ZCRYPT_DBF(DBF_DEBUG, "ioctl ZSENDCPRB rc=%d", rc);

		if (copy_to_user(uxcRB, &xcRB, sizeof(xcRB)))

			return -EFAULT;

		return rc;
@@ -872,6 +878,8 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, 
			do {

				rc = zcrypt_send_ep11_cprb(&xcrb);

			} while (rc == -EAGAIN);

		if (rc)

			ZCRYPT_DBF(DBF_DEBUG, "ioctl ZSENDEP11CPRB rc=%d", rc);

		if (copy_to_user(uxcrb, &xcrb, sizeof(xcrb)))

			return -EFAULT;

		return rc;