From patchwork Sat Dec 21 09:10:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 852973 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DBDCC1F2C20 for ; Sat, 21 Dec 2024 09:11:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734772295; cv=none; b=VuVW9xJDRYHF7wMbWNGtVtg45RPymZqgd9zg/kH4kSKWzBcG0uyNtHm816Gsh1uR+yDRkcH1ckEEseiGXX3CeirBUlZFGqLZDwlhnhG7XOJ/HUR/i7RFdvj5PpDWd9PGifFJz/eQw89tn2RG72b0lO312MUOJgG7LiSdLVnkNw8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734772295; c=relaxed/simple; bh=Zhg/KDiZCPgy+MF6pUjpqhVE/E/er2PToHEWYDXwwVE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=PQdJXHyR3GQL4UmL7GtZ6itNIulMbQAjjM4gxUnKugMb3tIMvxA6uByhsKln0YquUuwA1Xhs+gvXkFXyTcUPPzwbLTUniui5hR9P1t11DukioVwp7CiSIkk5vjxZyFnx8svCuajPXyg74NuSSs+msFTZZH9YF2wM7gI3rVWdA/c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=g+kScLD9; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="g+kScLD9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 94532C4CED6; Sat, 21 Dec 2024 09:11:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734772295; bh=Zhg/KDiZCPgy+MF6pUjpqhVE/E/er2PToHEWYDXwwVE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=g+kScLD9dkCdQQjdAXzak26Iro/ycGzhYTF2hfYDnAiuXENXVXBroulQKZQ0RdgPi gleM0ReXaWZQH5XqsN/0mwjLfF71TCANHGBUTpfAg3Qe4GvGOgUAs19uSyZmySXE0U DzwjrGQGsSWNNhTOUPwaVp7NEoelM13DrCxyUFGd1celhiKu/kDonwRQlXzYPxh1rW Y0BpsoeG4ncJAufi20b6iJwzE2pe72iRi/JPHEjFrKdNvCO7RkUsR/8pFiSMe5JI+G mfFYlkzlXsTp1hWbCPZI5ASfDdstR5JzOTkEZzMUpCYcteS++a2SM7oOmSnE96LqDt 6MsbvBtiSldeg== From: Eric Biggers To: linux-crypto@vger.kernel.org Cc: Alexandre Torgue , Maxime Coquelin , =?utf-8?b?TWF4aW1lIE3DqXLDqQ==?= , Thomas Bourgoin , linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH 23/29] crypto: stm32 - use the new scatterwalk functions Date: Sat, 21 Dec 2024 01:10:50 -0800 Message-ID: <20241221091056.282098-24-ebiggers@kernel.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241221091056.282098-1-ebiggers@kernel.org> References: <20241221091056.282098-1-ebiggers@kernel.org> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Eric Biggers Replace calls to the deprecated function scatterwalk_copychunks() with memcpy_from_scatterwalk(), memcpy_to_scatterwalk(), scatterwalk_skip(), or scatterwalk_start_at_pos() as appropriate. Cc: Alexandre Torgue Cc: Maxime Coquelin Cc: Maxime Méré Cc: Thomas Bourgoin Cc: linux-stm32@st-md-mailman.stormreply.com Signed-off-by: Eric Biggers --- This patch is part of a long series touching many files, so I have limited the Cc list on the full series. If you want the full series and did not receive it, please retrieve it from lore.kernel.org. drivers/crypto/stm32/stm32-cryp.c | 34 +++++++++++++++---------------- 1 file changed, 17 insertions(+), 17 deletions(-) diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c index 14c6339c2e43..5ce88e7a8f65 100644 --- a/drivers/crypto/stm32/stm32-cryp.c +++ b/drivers/crypto/stm32/stm32-cryp.c @@ -664,11 +664,11 @@ static void stm32_cryp_write_ccm_first_header(struct stm32_cryp *cryp) len = 6; } written = min_t(size_t, AES_BLOCK_SIZE - len, alen); - scatterwalk_copychunks((char *)block + len, &cryp->in_walk, written, 0); + memcpy_from_scatterwalk((char *)block + len, &cryp->in_walk, written); writesl(cryp->regs + cryp->caps->din, block, AES_BLOCK_32); cryp->header_in -= written; @@ -991,11 +991,11 @@ static int stm32_cryp_header_dma_start(struct stm32_cryp *cryp) tx_in->callback_param = cryp; tx_in->callback = stm32_cryp_header_dma_callback; /* Advance scatterwalk to not DMA'ed data */ align_size = ALIGN_DOWN(cryp->header_in, cryp->hw_blocksize); - scatterwalk_copychunks(NULL, &cryp->in_walk, align_size, 2); + scatterwalk_skip(&cryp->in_walk, align_size); cryp->header_in -= align_size; ret = dma_submit_error(dmaengine_submit(tx_in)); if (ret < 0) { dev_err(cryp->dev, "DMA in submit failed\n"); @@ -1054,22 +1054,22 @@ static int stm32_cryp_dma_start(struct stm32_cryp *cryp) tx_out->callback = stm32_cryp_dma_callback; tx_out->callback_param = cryp; /* Advance scatterwalk to not DMA'ed data */ align_size = ALIGN_DOWN(cryp->payload_in, cryp->hw_blocksize); - scatterwalk_copychunks(NULL, &cryp->in_walk, align_size, 2); + scatterwalk_skip(&cryp->in_walk, align_size); cryp->payload_in -= align_size; ret = dma_submit_error(dmaengine_submit(tx_in)); if (ret < 0) { dev_err(cryp->dev, "DMA in submit failed\n"); return ret; } dma_async_issue_pending(cryp->dma_lch_in); /* Advance scatterwalk to not DMA'ed data */ - scatterwalk_copychunks(NULL, &cryp->out_walk, align_size, 2); + scatterwalk_skip(&cryp->out_walk, align_size); cryp->payload_out -= align_size; ret = dma_submit_error(dmaengine_submit(tx_out)); if (ret < 0) { dev_err(cryp->dev, "DMA out submit failed\n"); return ret; @@ -1735,13 +1735,13 @@ static int stm32_cryp_prepare_req(struct skcipher_request *req, in_sg = areq->src; out_sg = areq->dst; scatterwalk_start(&cryp->in_walk, in_sg); - scatterwalk_start(&cryp->out_walk, out_sg); /* In output, jump after assoc data */ - scatterwalk_copychunks(NULL, &cryp->out_walk, cryp->areq->assoclen, 2); + scatterwalk_start_at_pos(&cryp->out_walk, out_sg, + areq->assoclen); ret = stm32_cryp_hw_init(cryp); if (ret) return ret; @@ -1871,16 +1871,16 @@ static int stm32_cryp_read_auth_tag(struct stm32_cryp *cryp) if (is_encrypt(cryp)) { u32 out_tag[AES_BLOCK_32]; /* Get and write tag */ readsl(cryp->regs + cryp->caps->dout, out_tag, AES_BLOCK_32); - scatterwalk_copychunks(out_tag, &cryp->out_walk, cryp->authsize, 1); + memcpy_to_scatterwalk(&cryp->out_walk, out_tag, cryp->authsize); } else { /* Get and check tag */ u32 in_tag[AES_BLOCK_32], out_tag[AES_BLOCK_32]; - scatterwalk_copychunks(in_tag, &cryp->in_walk, cryp->authsize, 0); + memcpy_from_scatterwalk(in_tag, &cryp->in_walk, cryp->authsize); readsl(cryp->regs + cryp->caps->dout, out_tag, AES_BLOCK_32); if (crypto_memneq(in_tag, out_tag, cryp->authsize)) ret = -EBADMSG; } @@ -1921,22 +1921,22 @@ static void stm32_cryp_check_ctr_counter(struct stm32_cryp *cryp) static void stm32_cryp_irq_read_data(struct stm32_cryp *cryp) { u32 block[AES_BLOCK_32]; readsl(cryp->regs + cryp->caps->dout, block, cryp->hw_blocksize / sizeof(u32)); - scatterwalk_copychunks(block, &cryp->out_walk, min_t(size_t, cryp->hw_blocksize, - cryp->payload_out), 1); + memcpy_to_scatterwalk(&cryp->out_walk, block, min_t(size_t, cryp->hw_blocksize, + cryp->payload_out)); cryp->payload_out -= min_t(size_t, cryp->hw_blocksize, cryp->payload_out); } static void stm32_cryp_irq_write_block(struct stm32_cryp *cryp) { u32 block[AES_BLOCK_32] = {0}; - scatterwalk_copychunks(block, &cryp->in_walk, min_t(size_t, cryp->hw_blocksize, - cryp->payload_in), 0); + memcpy_from_scatterwalk(block, &cryp->in_walk, min_t(size_t, cryp->hw_blocksize, + cryp->payload_in)); writesl(cryp->regs + cryp->caps->din, block, cryp->hw_blocksize / sizeof(u32)); cryp->payload_in -= min_t(size_t, cryp->hw_blocksize, cryp->payload_in); } static void stm32_cryp_irq_write_gcm_padded_data(struct stm32_cryp *cryp) @@ -1979,12 +1979,12 @@ static void stm32_cryp_irq_write_gcm_padded_data(struct stm32_cryp *cryp) * Same code as stm32_cryp_irq_read_data(), but we want to store * block value */ readsl(cryp->regs + cryp->caps->dout, block, cryp->hw_blocksize / sizeof(u32)); - scatterwalk_copychunks(block, &cryp->out_walk, min_t(size_t, cryp->hw_blocksize, - cryp->payload_out), 1); + memcpy_to_scatterwalk(&cryp->out_walk, block, min_t(size_t, cryp->hw_blocksize, + cryp->payload_out)); cryp->payload_out -= min_t(size_t, cryp->hw_blocksize, cryp->payload_out); /* d) change mode back to AES GCM */ cfg &= ~CR_ALGO_MASK; @@ -2077,12 +2077,12 @@ static void stm32_cryp_irq_write_ccm_padded_data(struct stm32_cryp *cryp) * Same code as stm32_cryp_irq_read_data(), but we want to store * block value */ readsl(cryp->regs + cryp->caps->dout, block, cryp->hw_blocksize / sizeof(u32)); - scatterwalk_copychunks(block, &cryp->out_walk, min_t(size_t, cryp->hw_blocksize, - cryp->payload_out), 1); + memcpy_to_scatterwalk(&cryp->out_walk, block, min_t(size_t, cryp->hw_blocksize, + cryp->payload_out)); cryp->payload_out -= min_t(size_t, cryp->hw_blocksize, cryp->payload_out); /* d) Load again CRYP_CSGCMCCMxR */ for (i = 0; i < ARRAY_SIZE(cstmp2); i++) cstmp2[i] = stm32_cryp_read(cryp, CRYP_CSGCMCCM0R + i * 4); @@ -2159,11 +2159,11 @@ static void stm32_cryp_irq_write_gcmccm_header(struct stm32_cryp *cryp) u32 block[AES_BLOCK_32] = {0}; size_t written; written = min_t(size_t, AES_BLOCK_SIZE, cryp->header_in); - scatterwalk_copychunks(block, &cryp->in_walk, written, 0); + memcpy_from_scatterwalk(block, &cryp->in_walk, written); writesl(cryp->regs + cryp->caps->din, block, AES_BLOCK_32); cryp->header_in -= written;