diff options
Diffstat (limited to 'drivers/crypto/nx')
-rw-r--r-- | drivers/crypto/nx/nx-842-powernv.c | 23 | ||||
-rw-r--r-- | drivers/crypto/nx/nx-aes-ccm.c | 2 | ||||
-rw-r--r-- | drivers/crypto/nx/nx-aes-gcm.c | 3 |
3 files changed, 15 insertions, 13 deletions
diff --git a/drivers/crypto/nx/nx-842-powernv.c b/drivers/crypto/nx/nx-842-powernv.c index 9ef51fafdbff..1710f80a09ec 100644 --- a/drivers/crypto/nx/nx-842-powernv.c +++ b/drivers/crypto/nx/nx-842-powernv.c @@ -442,6 +442,14 @@ static int nx842_powernv_function(const unsigned char *in, unsigned int inlen, (unsigned int)ccw, (unsigned int)be32_to_cpu(crb->ccw)); + /* + * NX842 coprocessor sets 3rd bit in CR register with XER[S0]. + * XER[S0] is the integer summary overflow bit which is nothing + * to do NX. Since this bit can be set with other return values, + * mask this bit. + */ + ret &= ~ICSWX_XERS0; + switch (ret) { case ICSWX_INITIATED: ret = wait_for_csb(wmem, csb); @@ -454,10 +462,6 @@ static int nx842_powernv_function(const unsigned char *in, unsigned int inlen, pr_err_ratelimited("ICSWX rejected\n"); ret = -EPROTO; break; - default: - pr_err_ratelimited("Invalid ICSWX return code %x\n", ret); - ret = -EPROTO; - break; } if (!ret) @@ -525,7 +529,6 @@ static int nx842_powernv_decompress(const unsigned char *in, unsigned int inlen, static int __init nx842_powernv_probe(struct device_node *dn) { struct nx842_coproc *coproc; - struct property *ct_prop, *ci_prop; unsigned int ct, ci; int chip_id; @@ -534,18 +537,16 @@ static int __init nx842_powernv_probe(struct device_node *dn) pr_err("ibm,chip-id missing\n"); return -EINVAL; } - ct_prop = of_find_property(dn, "ibm,842-coprocessor-type", NULL); - if (!ct_prop) { + + if (of_property_read_u32(dn, "ibm,842-coprocessor-type", &ct)) { pr_err("ibm,842-coprocessor-type missing\n"); return -EINVAL; } - ct = be32_to_cpu(*(unsigned int *)ct_prop->value); - ci_prop = of_find_property(dn, "ibm,842-coprocessor-instance", NULL); - if (!ci_prop) { + + if (of_property_read_u32(dn, "ibm,842-coprocessor-instance", &ci)) { pr_err("ibm,842-coprocessor-instance missing\n"); return -EINVAL; } - ci = be32_to_cpu(*(unsigned int *)ci_prop->value); coproc = kmalloc(sizeof(*coproc), GFP_KERNEL); if (!coproc) diff --git a/drivers/crypto/nx/nx-aes-ccm.c b/drivers/crypto/nx/nx-aes-ccm.c index 73ef49922788..7038f364acb5 100644 --- a/drivers/crypto/nx/nx-aes-ccm.c +++ b/drivers/crypto/nx/nx-aes-ccm.c @@ -409,7 +409,7 @@ static int ccm_nx_decrypt(struct aead_request *req, processed += to_process; } while (processed < nbytes); - rc = memcmp(csbcpb->cpb.aes_ccm.out_pat_or_mac, priv->oauth_tag, + rc = crypto_memneq(csbcpb->cpb.aes_ccm.out_pat_or_mac, priv->oauth_tag, authsize) ? -EBADMSG : 0; out: spin_unlock_irqrestore(&nx_ctx->lock, irq_flags); diff --git a/drivers/crypto/nx/nx-aes-gcm.c b/drivers/crypto/nx/nx-aes-gcm.c index eee624f589b6..abd465f479c4 100644 --- a/drivers/crypto/nx/nx-aes-gcm.c +++ b/drivers/crypto/nx/nx-aes-gcm.c @@ -21,6 +21,7 @@ #include <crypto/internal/aead.h> #include <crypto/aes.h> +#include <crypto/algapi.h> #include <crypto/scatterwalk.h> #include <linux/module.h> #include <linux/types.h> @@ -418,7 +419,7 @@ mac: itag, req->src, req->assoclen + nbytes, crypto_aead_authsize(crypto_aead_reqtfm(req)), SCATTERWALK_FROM_SG); - rc = memcmp(itag, otag, + rc = crypto_memneq(itag, otag, crypto_aead_authsize(crypto_aead_reqtfm(req))) ? -EBADMSG : 0; } |