diff --git a/drivers/crypto/tegra/tegra-se-aes.c b/drivers/crypto/tegra/tegra-se-aes.c index 13d76de2bc81..c3afa8344e4a 100644 --- a/drivers/crypto/tegra/tegra-se-aes.c +++ b/drivers/crypto/tegra/tegra-se-aes.c @@ -1547,9 +1547,8 @@ static int tegra_cmac_do_update(struct ahash_request *req) rctx->residue.size = nresidue; /* - * If this is not the first 'update' call, paste the previous copied + * If this is not the first task, paste the previous copied * intermediate results to the registers so that it gets picked up. - * This is to support the import/export functionality. */ if (!(rctx->task & SHA_FIRST)) tegra_cmac_paste_result(ctx->se, rctx); @@ -1557,13 +1556,7 @@ static int tegra_cmac_do_update(struct ahash_request *req) cmdlen = tegra_cmac_prep_cmd(ctx, rctx); ret = tegra_se_host1x_submit(se, se->cmdbuf, cmdlen); - /* - * If this is not the final update, copy the intermediate results - * from the registers so that it can be used in the next 'update' - * call. This is to support the import/export functionality. - */ - if (!(rctx->task & SHA_FINAL)) - tegra_cmac_copy_result(ctx->se, rctx); + tegra_cmac_copy_result(ctx->se, rctx); dma_free_coherent(ctx->se->dev, rctx->datbuf.size, rctx->datbuf.buf, rctx->datbuf.addr); @@ -1600,6 +1593,13 @@ static int tegra_cmac_do_final(struct ahash_request *req) rctx->total_len += rctx->residue.size; rctx->config = tegra234_aes_cfg(SE_ALG_CMAC, 0); + /* + * If this is not the first task, paste the previous copied + * intermediate results to the registers so that it gets picked up. + */ + if (!(rctx->task & SHA_FIRST)) + tegra_cmac_paste_result(ctx->se, rctx); + /* Prepare command and submit */ cmdlen = tegra_cmac_prep_cmd(ctx, rctx); ret = tegra_se_host1x_submit(se, se->cmdbuf, cmdlen);