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| author | Cristian Stoica <cristian.stoica@freescale.com> | 2014-09-23 13:34:49 (GMT) |
|---|---|---|
| committer | Matthew Weigel <Matthew.Weigel@freescale.com> | 2014-12-11 18:41:06 (GMT) |
| commit | abfec970cb0f8384e9b10eef316393a2339e2d64 (patch) | |
| tree | 6ba44b7ddebaaacb113b75d7bda298f05c47e427 /drivers/crypto/caam/caamalg_qi.c | |
| parent | 2b79116058767a16442d3571505f151fe2df7280 (diff) | |
| download | linux-fsl-qoriq-abfec970cb0f8384e9b10eef316393a2339e2d64.tar.xz | |
crypto: caamalg_qi: remove redundant checks on fast path
The function is called with arguments known at compile time.
Remove runtime checks for out of bound values.
Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com>
Change-Id: I2fe2e3d4bd3c63b81f99065b0db159a009f217e6
Reviewed-on: http://git.am.freescale.net:8181/19806
Reviewed-by: Horia Ioan Geanta Neag <horia.geanta@freescale.com>
Reviewed-by: Mircea Pop <mircea.pop@freescale.com>
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Matthew Weigel <Matthew.Weigel@freescale.com>
Diffstat (limited to 'drivers/crypto/caam/caamalg_qi.c')
| -rw-r--r-- | drivers/crypto/caam/caamalg_qi.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c index 4334f82..5aa72ec 100644 --- a/drivers/crypto/caam/caamalg_qi.c +++ b/drivers/crypto/caam/caamalg_qi.c @@ -1249,6 +1249,9 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req, static struct caam_drv_ctx *get_drv_ctx(struct caam_ctx *ctx, enum optype type) { + /* This function is called on the fast path with values of 'type' + * known at compile time. Invalid arguments are not expected and + * thus no checks are made */ struct caam_drv_ctx *drv_ctx = ctx->drv_ctx[type]; u32 *desc; @@ -1264,10 +1267,8 @@ static struct caam_drv_ctx *get_drv_ctx(struct caam_ctx *ctx, desc = ctx->sh_desc_enc; else if (DECRYPT == type) desc = ctx->sh_desc_dec; - else if (GIVENCRYPT == type) + else /* (GIVENCRYPT == type) */ desc = ctx->sh_desc_givenc; - else - return ERR_PTR(-EINVAL); cpu = smp_processor_id(); drv_ctx = caam_drv_ctx_init(ctx->qidev, &cpu, desc); |