Hello Tadeusz Struk,
The patch a990532023b9: "crypto: qat - Add support for RSA algorithm"
from Jul 15, 2015, leads to the following Smatch warning:
drivers/crypto/qat/qat_common/qat_asym_algs.c:446 qat_rsa_get_n()
warn: was && intended here instead of ||?
drivers/crypto/qat/qat_common/qat_asym_algs.c
444 ret = -EINVAL;
445 /* In FIPS mode only allow key size 2K & 3K */
446 if (fips_enabled && (ctx->key_sz != 256 || ctx->key_sz != 384))
{
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Looks like the static checker is correct.
447 pr_err("QAT: RSA: key size not allowed in FIPS mode\n");
448 goto err;
449 }
450 /* invalid key size provided */
451 if (!qat_rsa_enc_fn_id(ctx->key_sz))
452 goto err;
453
454 ret = -ENOMEM;
455 ctx->n = dma_zalloc_coherent(dev, ctx->key_sz, &ctx->dma_n,
GFP_KERNEL);
456 if (!ctx->n)
457 goto err;
458
459 memcpy(ctx->n, ptr, ctx->key_sz);
460 return 0;
461 err:
462 ctx->key_sz = 0;
463 ctx->n = NULL;
464 return ret;
465 }
regards,
dan carpenter
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