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Commit 27425286 authored by Phil Sutter's avatar Phil Sutter Committed by Herbert Xu
Browse files

crypto: mv_cesa - fix hashing of chunks > 1920 bytes 



This was broken by commit 7759995c (yes,
myself). The basic problem here is since the digest state is only saved
after the last chunk, the state array is only valid when handling the
first chunk of the next buffer. Broken since linux-3.0.

Signed-off-by: default avatarPhil Sutter <phil.sutter@viprinet.com>
Cc: <stable@kernel.org> # 3.1.x
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 3acc8473

drivers/crypto/mv_cesa.c

+7 −5
Original line number Diff line number Diff line
@@ -342,12 +342,14 @@ static void mv_process_hash_current(int first_block) 
		else

			op.config |= CFG_MID_FRAG;



		if (first_block) {

			writel(req_ctx->state[0], cpg->reg + DIGEST_INITIAL_VAL_A);

			writel(req_ctx->state[1], cpg->reg + DIGEST_INITIAL_VAL_B);

			writel(req_ctx->state[2], cpg->reg + DIGEST_INITIAL_VAL_C);

			writel(req_ctx->state[3], cpg->reg + DIGEST_INITIAL_VAL_D);

			writel(req_ctx->state[4], cpg->reg + DIGEST_INITIAL_VAL_E);

		}

	}



	memcpy(cpg->sram + SRAM_CONFIG, &op, sizeof(struct sec_accel_config));