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crypto: caam - remove unneeded edesc zeroization 

Extended descriptor allocation has been changed by
commit dde20ae9d6 ("crypto: caam - Change kmalloc to kzalloc to avoid residual data")
to provide zeroized memory, meaning we no longer have to sanitize
its members - edesc->src_nents and edesc->dst_dma.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Horia Geantă 2017-11-01 09:13:10 +02:00 committed by Herbert Xu
parent 7a373fd74a
commit f2ac677465
1 changed files with 0 additions and 4 deletions
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4
drivers/crypto/caam/caamhash.c
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@ -871,7 +871,6 @@ static int ahash_final_ctx(struct ahash_request *req)
desc = edesc->hw_desc;
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->src_nents = 0;
ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len,
edesc->sec4_sg, DMA_TO_DEVICE);
@ -1123,7 +1122,6 @@ static int ahash_final_no_ctx(struct ahash_request *req)
dev_err(jrdev, "unable to map dst\n");
goto unmap;
}
edesc->src_nents = 0;
#ifdef DEBUG
print_hex_dump(KERN_ERR, "jobdesc@"__stringify(__LINE__)": ",
@ -1205,7 +1203,6 @@ static int ahash_update_no_ctx(struct ahash_request *req)
edesc->src_nents = src_nents;
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->dst_dma = 0;
ret = buf_map_to_sec4_sg(jrdev, edesc->sec4_sg, state);
if (ret)
@ -1417,7 +1414,6 @@ static int ahash_update_first(struct ahash_request *req)
}
edesc->src_nents = src_nents;
edesc->dst_dma = 0;
ret = ahash_edesc_add_src(ctx, edesc, req, mapped_nents, 0, 0,
to_hash);