^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * sun8i-ss-cipher.c - hardware cryptographic offloader for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Allwinner A80/A83T SoC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2016-2019 Corentin LABBE <clabbe.montjoie@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * This file add support for AES cipher with 128,192,256 bits keysize in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * CBC and ECB mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * You could find a link for the datasheet in Documentation/arm/sunxi.rst
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/bottom_half.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/crypto.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/pm_runtime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <crypto/scatterwalk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <crypto/internal/skcipher.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "sun8i-ss.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static bool sun8i_ss_need_fallback(struct skcipher_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct scatterlist *in_sg = areq->src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct scatterlist *out_sg = areq->dst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct scatterlist *sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) if (areq->cryptlen == 0 || areq->cryptlen % 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) if (sg_nents(areq->src) > 8 || sg_nents(areq->dst) > 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) sg = areq->src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) while (sg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) if ((sg->length % 16) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) if ((sg_dma_len(sg) % 16) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) if (!IS_ALIGNED(sg->offset, 16))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) sg = sg_next(sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) sg = areq->dst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) while (sg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if ((sg->length % 16) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) if ((sg_dma_len(sg) % 16) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) if (!IS_ALIGNED(sg->offset, 16))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) sg = sg_next(sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /* SS need same numbers of SG (with same length) for source and destination */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) in_sg = areq->src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) out_sg = areq->dst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) while (in_sg && out_sg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (in_sg->length != out_sg->length)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) in_sg = sg_next(in_sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) out_sg = sg_next(out_sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) if (in_sg || out_sg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static int sun8i_ss_cipher_fallback(struct skcipher_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct sun8i_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) struct sun8i_cipher_req_ctx *rctx = skcipher_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #ifdef CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct sun8i_ss_alg_template *algt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) algt = container_of(alg, struct sun8i_ss_alg_template, alg.skcipher);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) algt->stat_fb++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) skcipher_request_set_tfm(&rctx->fallback_req, op->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) skcipher_request_set_callback(&rctx->fallback_req, areq->base.flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) areq->base.complete, areq->base.data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) skcipher_request_set_crypt(&rctx->fallback_req, areq->src, areq->dst,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) areq->cryptlen, areq->iv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (rctx->op_dir & SS_DECRYPTION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) err = crypto_skcipher_decrypt(&rctx->fallback_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) err = crypto_skcipher_encrypt(&rctx->fallback_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) static int sun8i_ss_cipher(struct skcipher_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct sun8i_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct sun8i_ss_dev *ss = op->ss;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct sun8i_cipher_req_ctx *rctx = skcipher_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct sun8i_ss_alg_template *algt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct scatterlist *sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) unsigned int todo, len, offset, ivsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) void *backup_iv = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) int nr_sgs = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) int nr_sgd = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) algt = container_of(alg, struct sun8i_ss_alg_template, alg.skcipher);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) dev_dbg(ss->dev, "%s %s %u %x IV(%p %u) key=%u\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) crypto_tfm_alg_name(areq->base.tfm),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) areq->cryptlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) rctx->op_dir, areq->iv, crypto_skcipher_ivsize(tfm),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) op->keylen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #ifdef CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) algt->stat_req++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) rctx->op_mode = ss->variant->op_mode[algt->ss_blockmode];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) rctx->method = ss->variant->alg_cipher[algt->ss_algo_id];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) rctx->keylen = op->keylen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) rctx->p_key = dma_map_single(ss->dev, op->key, op->keylen, DMA_TO_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (dma_mapping_error(ss->dev, rctx->p_key)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) dev_err(ss->dev, "Cannot DMA MAP KEY\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) goto theend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) ivsize = crypto_skcipher_ivsize(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (areq->iv && crypto_skcipher_ivsize(tfm) > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) rctx->ivlen = ivsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) rctx->biv = kzalloc(ivsize, GFP_KERNEL | GFP_DMA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) if (!rctx->biv) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) goto theend_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) if (rctx->op_dir & SS_DECRYPTION) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) backup_iv = kzalloc(ivsize, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) if (!backup_iv) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) goto theend_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) offset = areq->cryptlen - ivsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) scatterwalk_map_and_copy(backup_iv, areq->src, offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) ivsize, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) memcpy(rctx->biv, areq->iv, ivsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) rctx->p_iv = dma_map_single(ss->dev, rctx->biv, rctx->ivlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) DMA_TO_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (dma_mapping_error(ss->dev, rctx->p_iv)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) dev_err(ss->dev, "Cannot DMA MAP IV\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) goto theend_iv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) if (areq->src == areq->dst) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) nr_sgs = dma_map_sg(ss->dev, areq->src, sg_nents(areq->src),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) DMA_BIDIRECTIONAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) if (nr_sgs <= 0 || nr_sgs > 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) dev_err(ss->dev, "Invalid sg number %d\n", nr_sgs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) goto theend_iv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) nr_sgd = nr_sgs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) nr_sgs = dma_map_sg(ss->dev, areq->src, sg_nents(areq->src),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) DMA_TO_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) if (nr_sgs <= 0 || nr_sgs > 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) dev_err(ss->dev, "Invalid sg number %d\n", nr_sgs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) goto theend_iv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) nr_sgd = dma_map_sg(ss->dev, areq->dst, sg_nents(areq->dst),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) DMA_FROM_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (nr_sgd <= 0 || nr_sgd > 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) dev_err(ss->dev, "Invalid sg number %d\n", nr_sgd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) goto theend_sgs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) len = areq->cryptlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) sg = areq->src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) while (i < nr_sgs && sg && len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) if (sg_dma_len(sg) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) goto sgs_next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) rctx->t_src[i].addr = sg_dma_address(sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) todo = min(len, sg_dma_len(sg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) rctx->t_src[i].len = todo / 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) dev_dbg(ss->dev, "%s total=%u SGS(%d %u off=%d) todo=%u\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) areq->cryptlen, i, rctx->t_src[i].len, sg->offset, todo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) len -= todo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) sgs_next:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) sg = sg_next(sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) if (len > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) dev_err(ss->dev, "remaining len %d\n", len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) goto theend_sgs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) len = areq->cryptlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) sg = areq->dst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) while (i < nr_sgd && sg && len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) if (sg_dma_len(sg) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) goto sgd_next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) rctx->t_dst[i].addr = sg_dma_address(sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) todo = min(len, sg_dma_len(sg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) rctx->t_dst[i].len = todo / 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) dev_dbg(ss->dev, "%s total=%u SGD(%d %u off=%d) todo=%u\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) areq->cryptlen, i, rctx->t_dst[i].len, sg->offset, todo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) len -= todo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) sgd_next:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) sg = sg_next(sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) if (len > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) dev_err(ss->dev, "remaining len %d\n", len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) goto theend_sgs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) err = sun8i_ss_run_task(ss, rctx, crypto_tfm_alg_name(areq->base.tfm));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) theend_sgs:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) if (areq->src == areq->dst) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) dma_unmap_sg(ss->dev, areq->src, nr_sgs, DMA_BIDIRECTIONAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) dma_unmap_sg(ss->dev, areq->src, nr_sgs, DMA_TO_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) dma_unmap_sg(ss->dev, areq->dst, nr_sgd, DMA_FROM_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) theend_iv:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) if (rctx->p_iv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) dma_unmap_single(ss->dev, rctx->p_iv, rctx->ivlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) DMA_TO_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) if (areq->iv && ivsize > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) if (rctx->biv) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) offset = areq->cryptlen - ivsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) if (rctx->op_dir & SS_DECRYPTION) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) memcpy(areq->iv, backup_iv, ivsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) kfree_sensitive(backup_iv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) scatterwalk_map_and_copy(areq->iv, areq->dst, offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) ivsize, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) kfree(rctx->biv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) theend_key:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) dma_unmap_single(ss->dev, rctx->p_key, op->keylen, DMA_TO_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) theend:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) static int sun8i_ss_handle_cipher_request(struct crypto_engine *engine, void *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) struct skcipher_request *breq = container_of(areq, struct skcipher_request, base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) err = sun8i_ss_cipher(breq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) local_bh_disable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) crypto_finalize_skcipher_request(engine, breq, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) local_bh_enable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) int sun8i_ss_skdecrypt(struct skcipher_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) struct sun8i_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) struct sun8i_cipher_req_ctx *rctx = skcipher_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) struct crypto_engine *engine;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) int e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) memset(rctx, 0, sizeof(struct sun8i_cipher_req_ctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) rctx->op_dir = SS_DECRYPTION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) if (sun8i_ss_need_fallback(areq))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return sun8i_ss_cipher_fallback(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) e = sun8i_ss_get_engine_number(op->ss);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) engine = op->ss->flows[e].engine;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) rctx->flow = e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) return crypto_transfer_skcipher_request_to_engine(engine, areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) int sun8i_ss_skencrypt(struct skcipher_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) struct sun8i_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) struct sun8i_cipher_req_ctx *rctx = skcipher_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) struct crypto_engine *engine;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) int e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) memset(rctx, 0, sizeof(struct sun8i_cipher_req_ctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) rctx->op_dir = SS_ENCRYPTION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) if (sun8i_ss_need_fallback(areq))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) return sun8i_ss_cipher_fallback(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) e = sun8i_ss_get_engine_number(op->ss);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) engine = op->ss->flows[e].engine;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) rctx->flow = e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) return crypto_transfer_skcipher_request_to_engine(engine, areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) int sun8i_ss_cipher_init(struct crypto_tfm *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) struct sun8i_cipher_tfm_ctx *op = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) struct sun8i_ss_alg_template *algt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) const char *name = crypto_tfm_alg_name(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) struct crypto_skcipher *sktfm = __crypto_skcipher_cast(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) struct skcipher_alg *alg = crypto_skcipher_alg(sktfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) memset(op, 0, sizeof(struct sun8i_cipher_tfm_ctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) algt = container_of(alg, struct sun8i_ss_alg_template, alg.skcipher);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) op->ss = algt->ss;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) op->fallback_tfm = crypto_alloc_skcipher(name, 0, CRYPTO_ALG_NEED_FALLBACK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) if (IS_ERR(op->fallback_tfm)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) dev_err(op->ss->dev, "ERROR: Cannot allocate fallback for %s %ld\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) name, PTR_ERR(op->fallback_tfm));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) return PTR_ERR(op->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) sktfm->reqsize = sizeof(struct sun8i_cipher_req_ctx) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) crypto_skcipher_reqsize(op->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) dev_info(op->ss->dev, "Fallback for %s is %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) crypto_tfm_alg_driver_name(&sktfm->base),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) crypto_tfm_alg_driver_name(crypto_skcipher_tfm(op->fallback_tfm)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) op->enginectx.op.do_one_request = sun8i_ss_handle_cipher_request;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) op->enginectx.op.prepare_request = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) op->enginectx.op.unprepare_request = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) err = pm_runtime_resume_and_get(op->ss->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) dev_err(op->ss->dev, "pm error %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) goto error_pm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) error_pm:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) crypto_free_skcipher(op->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) void sun8i_ss_cipher_exit(struct crypto_tfm *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) struct sun8i_cipher_tfm_ctx *op = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) kfree_sensitive(op->key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) crypto_free_skcipher(op->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) pm_runtime_put_sync(op->ss->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) int sun8i_ss_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) unsigned int keylen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) struct sun8i_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) struct sun8i_ss_dev *ss = op->ss;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) switch (keylen) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) case 128 / 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) case 192 / 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) case 256 / 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) dev_dbg(ss->dev, "ERROR: Invalid keylen %u\n", keylen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) kfree_sensitive(op->key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) op->keylen = keylen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) op->key = kmemdup(key, keylen, GFP_KERNEL | GFP_DMA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) if (!op->key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) crypto_skcipher_clear_flags(op->fallback_tfm, CRYPTO_TFM_REQ_MASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) crypto_skcipher_set_flags(op->fallback_tfm, tfm->base.crt_flags & CRYPTO_TFM_REQ_MASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) return crypto_skcipher_setkey(op->fallback_tfm, key, keylen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) int sun8i_ss_des3_setkey(struct crypto_skcipher *tfm, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) unsigned int keylen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) struct sun8i_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) struct sun8i_ss_dev *ss = op->ss;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) if (unlikely(keylen != 3 * DES_KEY_SIZE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) dev_dbg(ss->dev, "Invalid keylen %u\n", keylen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) kfree_sensitive(op->key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) op->keylen = keylen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) op->key = kmemdup(key, keylen, GFP_KERNEL | GFP_DMA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) if (!op->key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) crypto_skcipher_clear_flags(op->fallback_tfm, CRYPTO_TFM_REQ_MASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) crypto_skcipher_set_flags(op->fallback_tfm, tfm->base.crt_flags & CRYPTO_TFM_REQ_MASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) return crypto_skcipher_setkey(op->fallback_tfm, key, keylen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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